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SiteCheck

by bck-stack · remote · no sign-in to list tools · v1.8.5 · published by GitHub user bck-stack

225 pay-per-call agent tools: Polymarket, chain reads, DeFi, web, SEC, KYB, geo, dev, AI. x402

Deletes · 1Final · 14Changes · 172

225 tools: 1 can delete or cancel things, 14 do something that can't be undone, 172 change things and 38 only read.

Scanned Oct 21, 2026

31 checks matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http sitecheck https://api.sitecheck-api.workers.dev/mcp?ref=registry

Findings

Matches of fixed checks, with the text they matched.

30 warn1 info
  • Warnimage

    The server marks "image" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "generate": a word for a change.

    What this check looks for
  • Warnfx

    The server marks "fx" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • Warnlinks

    The server marks "links" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "links" says "link": a word for a change.

    What this check looks for
  • The server marks "solana_quote" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • The server marks "evm_transfers" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "evm_transfers" says "transfer": a word for a change that another call does not undo.

    What this check looks for
  • The server marks "evm_call" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "evm_call" says "call": a word for a change.

    What this check looks for
Show 25 more findings
  • The server marks "postcode" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input takes a statement or command to run (input.code), which can change anything it can reach.

    What this check looks for
  • The server marks "fda_label" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "fda_label" says "label": a word for a change.

    What this check looks for
  • The server marks "timezone" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • The server marks "distance" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • The server marks "wikidata" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "run": a word for a change.

    What this check looks for
  • The server marks "classify" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "label": a word for a change.

    What this check looks for
  • Warnredact

    The server marks "redact" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "replace": a word for a change.

    What this check looks for
  • The server marks "flights" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • The server marks "crypto_convert" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "crypto_convert" says "convert": a word for a change.

    What this check looks for
  • The server marks "translate_subtitles" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • The server marks "business_days" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • The server marks "date_calc" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • Warnunits

    The server marks "units" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "convert": a word for a change.

    What this check looks for
  • The server marks "airports" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input takes a statement or command to run (input.code), which can change anything it can reach.

    What this check looks for
  • The server marks "pm_wallet" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "open": a word for a change.

    What this check looks for
  • The server marks "evm_simulate" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • The server marks "tariff_uk" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "return": a word for reading.

    What this check looks for
  • The server marks "domain_typosquat" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "generate": a word for a change.

    What this check looks for
  • The server marks "web_archive" read-only (readOnlyHint: true), and its own name, description or input give the class "destructive".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "web_archive" says "archive": a word for removing or ending something.

    What this check looks for
  • The server marks "wiki_pageviews" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

    What this check looks for
  • The server marks "code_explain" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "code_explain" says "explain": a word for reading.

    What this check looks for
  • The server marks "email_reply" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "email_reply" says "reply": a word for sending, and what is sent cannot be taken back.

    What this check looks for
  • The server marks "regex_generate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "regex_generate" says "generate": a word for a change.

    What this check looks for
  • The server marks "sql_generate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "sql_generate" says "generate": a word for a change.

    What this check looks for
  • Infonpi

    The description mentions "credential".

    Matched text

    description: "...state. Each provider gives type, name, credential, status, primary taxonomy and practice..."

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

225 tools

Deletes or cancels 1Claude Code: deny
  • web_archiveWayback Machine snapshots of a public URL: the capture closest to a date, the list of captures in a date range (one per day, max 500), first and last capture, and mode=diff, which …1 finding

    Why it is in this group

    • The name "web_archive" says "archive": a word for removing or ending something.
    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "web_archive" read-only (readOnlyHint: true), and its own name, description or input give the class "destructive".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "web_archive" says "archive": a word for removing or ending something.

      What this check looks for
    Description, as the server wrote it
    Wayback Machine snapshots of a public URL: the capture closest to a date, the list of captures in a date range (one per day, max 500), first and last capture, and mode=diff, which compares the latest snapshot's text with the live page (added and removed lines, max 200 each). Diff is line-based and does not parse JavaScript-rendered pages. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
Can't be undone 14Claude Code: ask
  • business_daysWorking days for a country.1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "business_days" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Working days for a country. mode=between counts the working days after `from` up to and including `to` (up to 5 years) and lists the public holidays skipped; mode=add gives the date that is N working days after `date` (up to 3,650). Weekends are Saturday and Sunday, Friday and Saturday in Israel, and Friday only in Iran and Afghanistan. Nationwide public holidays from Nager.Date; a country with no holiday data is a 404, not charged. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_convertConvert an amount between a crypto and a fiat currency, or between two crypto assets, at the current spot price: the rate, the converted amount, the pair path used (direct, or thro…1 finding

    Why it is in this group

    • The name "crypto_convert" says "convert": a word for a change.
    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "crypto_convert" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "crypto_convert" says "convert": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Convert an amount between a crypto and a fiat currency, or between two crypto assets, at the current spot price: the rate, the converted amount, the pair path used (direct, or through USD) and the time of the rate. Spot prices from Coinbase, Kraken as the fallback. A spot rate, not an executable quote: no fees or slippage. Fiat to fiat is refused; use the FX tool for that. Information only, not financial advice. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • date_calcDate and time calculations in pure code.1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "date_calc" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Date and time calculations in pure code. op=diff: calendar years, months and days between two dates, and the total days. op=add or subtract: move a date by years, months, weeks, days, hours or minutes (month ends are clamped). op=info: weekday, ISO week, day of year, quarter, and age from birthDate. op=tz: a local date-time in one IANA time zone shown in another. Impossible dates are a 400 with the reason. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • distanceThe great-circle distance between two points in km and miles, the initial bearing and the midpoint.1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "distance" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    The great-circle distance between two points in km and miles, the initial bearing and the midpoint. Each point is a lat,lon pair or a place name (geocoded with OpenStreetMap data, ODbL). Straight-line distance only, not a route. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • email_replyDrafts a reply (subject and body) to a received e-mail (max 10,000 characters) for an intent: accept, decline, ask-information, follow-up or custom with your own instructions.1 finding

    Why it is in this group

    • The name "email_reply" says "reply": a word for sending, and what is sent cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "email_reply" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "email_reply" says "reply": a word for sending, and what is sent cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Drafts a reply (subject and body) to a received e-mail (max 10,000 characters) for an intent: accept, decline, ask-information, follow-up or custom with your own instructions. Tone formal, neutral or friendly; language as requested. Dates, numbers and names that are not in the inputs appear as placeholders such as [date]. Read it before sending. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_simulateSimulates an EVM transaction execution without broadcasting: { chain, from, to, data, value }.1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "evm_simulate" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Simulates an EVM transaction execution without broadcasting: { chain, from, to, data, value }. Returns eth_call output, gas estimate, success/revert status with decoded revert reason (Error(string), Panic(uint256)), and token balance if to is an ERC-20. State overrides not supported by public RPCs. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_transfersERC-20 transfers into and out of an address in a window of recent blocks (default 2,000, max 10,000), from Transfer logs, newest first, max 100 rows with token symbols.1 finding

    Why it is in this group

    • The name "evm_transfers" says "transfer": a word for a change that another call does not undo.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "evm_transfers" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "evm_transfers" says "transfer": a word for a change that another call does not undo.

      What this check looks for
    Description, as the server wrote it
    ERC-20 transfers into and out of an address in a window of recent blocks (default 2,000, max 10,000), from Transfer logs, newest first, max 100 rows with token symbols. token limits the search to one contract. A busy address can be truncated: narrow the window to see the rest. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • flightsFlight fares for one route and date, one-way or round trip: the cheapest, the fastest and the cheapest nonstop option, then up to 20 itineraries sorted by price with carrier, stops…1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "flights" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Flight fares for one route and date, one-way or round trip: the cheapest, the fastest and the cheapest nonstop option, then up to 20 itineraries sorted by price with carrier, stops, duration, departure and arrival times (local and UTC), every flight segment and aircraft. Cabin, maximum stops and market (sets the currency) are optional. Fares for a single traveller from Ignav; a fare search, not a booking. Price: $0.05 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • fxCurrency exchange rates from the European Central Bank (about 30 currencies, back to 1999): latest or a given date, amount conversion, or a daily time series between two dates.1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "fx" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Currency exchange rates from the European Central Bank (about 30 currencies, back to 1999): latest or a given date, amount conversion, or a daily time series between two dates. Source: ECB reference rates via Frankfurter. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • solana_quoteBest Jupiter swap route for a Solana token pair and an amount: input and output in token units, the minimum received after slippage, price impact, effective price, each route hop a…1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "solana_quote" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Best Jupiter swap route for a Solana token pair and an amount: input and output in token units, the minimum received after slippage, price impact, effective price, each route hop and USD values. from and to take a mint address or a symbol such as SOL or USDC; a symbol resolves to the verified token with the highest organic score, and the chosen mint is named. Quote only: nothing is built, signed or sent. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • timezoneThe current time in an IANA time zone (its UTC offset and whether DST applies) and, with time and to, the conversion of a local time from one zone to another.1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "timezone" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    The current time in an IANA time zone (its UTC offset and whether DST applies) and, with time and to, the conversion of a local time from one zone to another. Computed in the Worker with the runtime's time zone data; no outside call. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • translate_subtitlesTranslate an SRT or WebVTT subtitle file into another language.1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "translate_subtitles" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Translate an SRT or WebVTT subtitle file into another language. Only the cue text is translated; every cue number, timing line and header is copied exactly, and the output is checked to parse back to the same cues and timings, or it is refused unpaid. Body { subtitles, to, from }: up to 50 KB. Workers AI (Llama 3.1 8B) translates the text, so check it before publishing. Price: $0.004 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • unitsConvert a value between units of length, area, volume (US customary and metric, cooking measures), mass, speed, pressure, energy, power, data size (SI and binary), time and tempera…1 finding

    Why it is in this group

    • The description's first verb is "convert": a word for a change.
    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "units" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "convert": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Convert a value between units of length, area, volume (US customary and metric, cooking measures), mass, speed, pressure, energy, power, data size (SI and binary), time and temperature. Factors are exact to the definitions in NIST SP 811 (international inch and pound, US gallon, calorie IT, Btu IT, mechanical horsepower). An unknown unit is a 400 that lists every supported unit. Pure code, no outside source. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • wiki_pageviewsDaily or monthly page views (user agent, all access) for up to 5 articles in one Wikipedia edition over a date range of at most one year, with totals, peak day and the change betwe…1 finding

    Why it is in this group

    • The input addresses people (input.to): what it sends cannot be taken back.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "wiki_pageviews" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input addresses people (input.to): what it sends cannot be taken back.

      What this check looks for
    Description, as the server wrote it
    Daily or monthly page views (user agent, all access) for up to 5 articles in one Wikipedia edition over a date range of at most one year, with totals, peak day and the change between the first and second half. mode=top lists the most viewed articles of one day. Data lags by about a day; bots and unknown agents are excluded. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
Changes things 172Claude Code: ask
  • address_parseSplits a free-text postal address into house number, street, unit, postcode, city, district, region and country, with a normalised one-line form.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Splits a free-text postal address into house number, street, unit, postcode, city, district, region and country, with a normalised one-line form. The postcode is checked against the rule of the country (for 18 countries); a mismatch is left out and says so. Workers AI does the split, so check the parts. geocode=1 adds coordinates from OpenStreetMap Nominatim. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • ai_crawlersFor eleven AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Google-Extended and others): allowed or blocked for the page's path under robots.txt, plus the noai and noimageai opt-outs…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    For eleven AI crawlers (GPTBot, ClaudeBot, PerplexityBot, Google-Extended and others): allowed or blocked for the page's path under robots.txt, plus the noai and noimageai opt-outs in meta and X-Robots-Tag, and whether llms.txt exists. Reads the page as static HTML; no JavaScript runs. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • airportsAirport lookup in a bundled OurAirports extract (public domain, dated in the answer): by IATA or ICAO code, by name or city words, or the nearest airports within a radius (up to 30…1 finding

    Why it is in this group

    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "airports" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input takes a statement or command to run (input.code), which can change anything it can reach.

      What this check looks for
    Description, as the server wrote it
    Airport lookup in a bundled OurAirports extract (public domain, dated in the answer): by IATA or ICAO code, by name or city words, or the nearest airports within a radius (up to 300 km) of a point. Covers large and medium airports and every airport with an IATA code; small airports without one are left out. Name, codes, type, city, country, coordinates, elevation and Wikipedia link. No time zone (not in the source). Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • arxivarXiv papers matching search terms, optionally in one category (cs.AI, math.CO), newest first, max 25: id, title, authors, dates, a 500-character summary, categories and the PDF li…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    arXiv papers matching search terms, optionally in one category (cs.AI, math.CO), newest first, max 25: id, title, authors, dates, a 500-character summary, categories and the PDF link. Attribution: Thank you to arXiv for use of its open access interoperability. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • auditWebsite audit in one call: WCAG 2.2 accessibility issues (European Accessibility Act) with fixes and a score, SEO basics, security headers and tech stack.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Website audit in one call: WCAG 2.2 accessibility issues (European Accessibility Act) with fixes and a score, SEO basics, security headers and tech stack. Price: $0.02 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • booksBook lookup by ISBN (checked before the call) or by title and/or author: title, subtitle, authors, publishers, first publish year, median page count, ISBN-10 and ISBN-13 of the mat…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Book lookup by ISBN (checked before the call) or by title and/or author: title, subtitle, authors, publishers, first publish year, median page count, ISBN-10 and ISBN-13 of the matching edition, languages, subjects, cover image URL, and the Open Library work and Wikidata ids. Data from Open Library (CC0). A title with no match is a 404, not charged. Up to 20 results. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • btc_addressA Bitcoin mainnet address: confirmed and unconfirmed balance in BTC and USD, transaction count, funded and spent totals, and its last 10 transactions with the net change for the ad…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A Bitcoin mainnet address: confirmed and unconfirmed balance in BTC and USD, transaction count, funded and spent totals, and its last 10 transactions with the net change for the address. Mainnet bech32 and legacy addresses only. Source: mempool.space. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • btc_feesRecommended Bitcoin fees in sat/vB (fastest, 30 minutes, 1 hour, economy, minimum), the mempool's size and count, and what a typical 140 vB transaction costs in BTC and USD.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Recommended Bitcoin fees in sat/vB (fastest, 30 minutes, 1 hour, economy, minimum), the mempool's size and count, and what a typical 140 vB transaction costs in BTC and USD. Source: mempool.space; USD from Coinbase spot. Cached 30 seconds. Information only, not financial advice. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • btc_txA Bitcoin transaction by txid: confirmed block and time (or unconfirmed), fee in sats and sat/vB, size and virtual size, input and output totals, and whether it signals replace-by-…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A Bitcoin transaction by txid: confirmed block and time (or unconfirmed), fee in sats and sat/vB, size and virtual size, input and output totals, and whether it signals replace-by-fee. Source: mempool.space. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • certsCurrent TLS certificates for a domain from Certificate Transparency logs (via CertSpotter): issuer, validity dates and days left, DNS names (up to 100 per certificate), and the dis…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Current TLS certificates for a domain from Certificate Transparency logs (via CertSpotter): issuer, validity dates and days left, DNS names (up to 100 per certificate), and the distinct subdomains seen. Keyless tier: one request per call; answers are cached an hour. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • chatLLM chat completion with Llama 3.3 70B (fast): send messages or a prompt, up to 1,024 output tokens.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    LLM chat completion with Llama 3.3 70B (fast): send messages or a prompt, up to 1,024 output tokens. Price: $0.004 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • classifyLabels up to 20 texts with 2 to 20 labels you choose, with a confidence from 0 to 1 and a one-line reason per text.1 finding

    Why it is in this group

    • The description's first verb is "label": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "classify" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "label": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Labels up to 20 texts with 2 to 20 labels you choose, with a confidence from 0 to 1 and a one-line reason per text. One label per text, or several with multi true. Uses the chat model with JSON output; labels are as good as the model's reading of them. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • clinical_trialsClinical trials from ClinicalTrials.gov matching words, optionally by status and phase: NCT id, title, status, phases, conditions, sponsor, start and completion dates, enrolment, n…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Clinical trials from ClinicalTrials.gov matching words, optionally by status and phase: NCT id, title, status, phases, conditions, sponsor, start and completion dates, enrolment, number of locations and the study link. Information only, not medical advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • code_explainExplains a code snippet (max 20,000 characters): detected language, a summary, a step-by-step explanation, the functions and classes it defines, and possible bugs and security issu…1 finding

    Why it is in this group

    • The name "code_explain" says "explain": a word for reading.
    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "code_explain" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "code_explain" says "explain": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Explains a code snippet (max 20,000 characters): detected language, a summary, a step-by-step explanation, the functions and classes it defines, and possible bugs and security issues with line numbers. Line numbers outside the snippet are dropped. Model-written: a finding is a lead to check, not a verified defect. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • company_registryCompanies from the official registers of Norway, Finland, the Czech Republic and Poland.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Companies from the official registers of Norway, Finland, the Czech Republic and Poland. Search by name (Norway, Finland, Czech Republic) or look up one company by its number: Norway 9 digits, Finland Y-tunnus, Czech IČO, Poland KRS (Poland by number only). Answers give name, id, status, legal form, address, incorporation date and industry; Norway lookups by number also list managers. France: use /api/company/fr. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • company_tickerMaps a US-listed stock ticker, SEC CIK number or company name fragment to the other two, with the exchange: an exact ticker or CIK, or up to 10 names matching the words you give (t…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Maps a US-listed stock ticker, SEC CIK number or company name fragment to the other two, with the exchange: an exact ticker or CIK, or up to 10 names matching the words you give (the names that start with it first). From the SEC's company ticker file (public domain), cached a day and trimmed before caching. Covers companies with an SEC ticker only; a name with no match is a 404, not charged. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • congressUS federal bills from Congress.gov (Library of Congress).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    US federal bills from Congress.gov (Library of Congress). Keyword search (q) runs over the 250 most recently updated bills of a Congress, since the API has no full-text search; each match gets its sponsor, status and latest action. A bill number (bill=hr1234-119) returns its cosponsor count, committees and up to 30 actions. Public domain. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • contactsCompany contact enrichment from a domain: emails (same-domain flagged), phones, social profiles, description and tech stack, read from the home, contact, about and legal pages.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Company contact enrichment from a domain: emails (same-domain flagged), phones, social profiles, description and tech stack, read from the home, contact, about and legal pages. Price: $0.01 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_address_riskScreens up to 20 crypto addresses (EVM chains, Bitcoin, Solana, Tron, Litecoin, Monero, XRP, Zcash and more; 18 currencies) against the US Treasury OFAC Specially Designated Nation…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Screens up to 20 crypto addresses (EVM chains, Bitcoin, Solana, Tron, Litecoin, Monero, XRP, Zcash and more; 18 currencies) against the US Treasury OFAC Specially Designated Nationals (SDN) digital currency address list. Reports sanction status, list name, SDN program, and source link. Never declares an address clean: reports 'not on the checked lists'. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_candlesOHLCV candles for a Coinbase trading pair (BTC-USD) at 1m, 5m, 15m, 1h, 6h or 1d granularity, up to 300, newest first, from Coinbase Exchange public market data.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    OHLCV candles for a Coinbase trading pair (BTC-USD) at 1m, 5m, 15m, 1h, 6h or 1d granularity, up to 300, newest first, from Coinbase Exchange public market data. Prices are that venue's trades only. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_fear_greedThe Crypto Fear & Greed Index today and for the previous days (up to 30), with its classification (extreme fear to extreme greed).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The Crypto Fear & Greed Index today and for the previous days (up to 30), with its classification (extreme fear to extreme greed). Attribution: alternative.me. Information only, not financial advice. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_fundingPerpetual futures funding for one coin across Hyperliquid, OKX, Deribit and dYdX v4: the current funding rate, the interval (1 or 8 hours), the annualised rate, the next funding ti…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Perpetual futures funding for one coin across Hyperliquid, OKX, Deribit and dYdX v4: the current funding rate, the interval (1 or 8 hours), the annualised rate, the next funding time, open interest in coins and USD, and the mark or oracle price. A venue that does not list the coin is left out and named in unavailable. Rates are as the venues publish them; funding is paid between traders, not to the venue. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_indicatorsTechnical indicators for one crypto pair and interval, computed from the last 60 to 300 candles: SMA and EMA for the periods you give (default SMA 20, 50, 200; EMA 12, 26), RSI 14 …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Technical indicators for one crypto pair and interval, computed from the last 60 to 300 candles: SMA and EMA for the periods you give (default SMA 20, 50, 200; EMA 12, 26), RSI 14 (Wilder), MACD 12/26/9, Bollinger 20/2, ATR 14, the latest values, and a plain trend note (above or below the 200 average, overbought or oversold). Candles come from Coinbase; the newest candle may still be forming. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_newsLatest crypto headlines from the RSS feeds of CoinDesk, Cointelegraph, Decrypt, The Block and Bitcoin Magazine, newest first: title, link, publisher, publish time, the coins named …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Latest crypto headlines from the RSS feeds of CoinDesk, Cointelegraph, Decrypt, The Block and Bitcoin Magazine, newest first: title, link, publisher, publish time, the coins named in the text, and at most 200 characters of the feed's own summary. Filter by words in the text (q) or by coin. Feeds are cached 5 minutes; a feed that fails is listed in unavailable. Headlines and links only, not the articles. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_orderbookA level-2 order book snapshot for a Coinbase pair: best bid and ask, mid price, spread in price and basis points, and the top bids and asks up to depth 50.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A level-2 order book snapshot for a Coinbase pair: best bid and ask, mid price, spread in price and basis points, and the top bids and asks up to depth 50. It is a snapshot, not a quote: prices move between calls. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_priceUSD spot prices for up to 20 symbols (BTC, ETH, SOL...) from Coinbase, with the source of each price.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    USD spot prices for up to 20 symbols (BTC, ETH, SOL...) from Coinbase, with the source of each price. A Solana mint address also works and is priced by Jupiter. Symbols without a price are listed in unavailable. Cached 15 seconds. Information only, not financial advice. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • crypto_whalesLarge stablecoin and major-token transfers in the last few minutes on Ethereum, Base, Arbitrum, Optimism or Polygon: hash, block time, sender, receiver, amount and USD value at the…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Large stablecoin and major-token transfers in the last few minutes on Ethereum, Base, Arbitrum, Optimism or Polygon: hash, block time, sender, receiver, amount and USD value at the Coinbase spot price, sorted by value. Labels only for a few known addresses; others are null. One token contract is read over public RPC, so the window is short. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • defi_chainsTotal value locked by chain from DefiLlama, largest first, with each chain's token, chain id and stablecoin market cap.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Total value locked by chain from DefiLlama, largest first, with each chain's token, chain id and stablecoin market cap. With chain, that chain's own row and its TVL change over 1, 7 and 30 days from DefiLlama's daily history. Data: DefiLlama. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • defi_dex_volumeA DEX's trading volume for 24 hours, 7 days and 30 days, with the change over the last day and the chains it trades on.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A DEX's trading volume for 24 hours, 7 days and 30 days, with the change over the last day and the chains it trades on. Attribution: Data: DefiLlama. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • defi_feesA DeFi protocol's fees and revenue for 24 hours, 7 days and 30 days, with the change over the last day against the day before, and the chains it runs on.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A DeFi protocol's fees and revenue for 24 hours, 7 days and 30 days, with the change over the last day against the day before, and the chains it runs on. Attribution: Data: DefiLlama. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • defi_stablecoinsStablecoins tracked by DefiLlama: circulating supply, peg type and mechanism, price, and the chains each one runs on.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Stablecoins tracked by DefiLlama: circulating supply, peg type and mechanism, price, and the chains each one runs on. With symbol, that coin; without it the 50 largest. Attribution: Data: DefiLlama. Information only, not financial advice. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • defi_tvlTotal value locked in DeFi from DefiLlama.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Total value locked in DeFi from DefiLlama. For a protocol (its slug, e.g. aave-v3) the current TVL; for a chain (Base, Ethereum...) its TVL with 1-day and 7-day changes. A protocol's history is too large to read here, so it has no change figures. Attribution: Data: DefiLlama. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • defi_yieldsDeFi yield pools from DefiLlama with at least $1M TVL, sorted by APY and filtered by chain, project or symbol (max 50).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    DeFi yield pools from DefiLlama with at least $1M TVL, sorted by APY and filtered by chain, project or symbol (max 50). APY is DefiLlama's estimate, split into base and reward; reward APYs are often temporary. Attribution: Data: DefiLlama. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • disastersCurrent disaster alerts from GDACS (UN OCHA and EC JRC): type (earthquake, tropical cyclone, flood, volcano, drought, wildfire), name, country, alert level, start date, severity an…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Current disaster alerts from GDACS (UN OCHA and EC JRC): type (earthquake, tropical cyclone, flood, volcano, drought, wildfire), name, country, alert level, start date, severity and link. Filter by type and alert level. Attribution: GDACS. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • dnsMail and DNS hygiene of a domain over DNS over HTTPS: A, AAAA, MX, NS, TXT and CAA records; SPF parsed (mechanisms, the all qualifier, a lookup estimate, a warning above 10 lookups…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Mail and DNS hygiene of a domain over DNS over HTTPS: A, AAAA, MX, NS, TXT and CAA records; SPF parsed (mechanisms, the all qualifier, a lookup estimate, a warning above 10 lookups); the DMARC policy; DKIM keys under common selectors; MTA-STS, TLS-RPT and BIMI; an issues list and a mail grade from A to F. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • doiA DOI's bibliographic record from Crossref (title, authors, journal, publisher, date, type, citation count, license), or the best matches for a citation-style search (max 10).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A DOI's bibliographic record from Crossref (title, authors, journal, publisher, date, type, citation count, license), or the best matches for a citation-style search (max 10). An unknown DOI answers 404, not charged. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • domainDomain lookup over RDAP (the successor of WHOIS) and DNS: registered or available, registrar, creation, update and expiry dates, days until expiry, age, status codes, DNSSEC, name …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Domain lookup over RDAP (the successor of WHOIS) and DNS: registered or available, registrar, creation, update and expiry dates, days until expiry, age, status codes, DNSSEC, name servers, plus whether it resolves (IPv4/IPv6) and its mail servers. Any TLD with an RDAP service; others are inferred from DNS. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • domain_typosquatGenerates lookalike domains of a brand (omission, transposition, repetition, bit-flip, homoglyph, vowel swap, hyphenation, TLD swap; technique list after dnstwist), checks up to 30…1 finding

    Why it is in this group

    • The description's first verb is "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "domain_typosquat" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Generates lookalike domains of a brand (omission, transposition, repetition, bit-flip, homoglyph, vowel swap, hyphenation, TLD swap; technique list after dnstwist), checks up to 30 of them in DNS (A records), and reads MX records for up to 8 that resolve. Resolving in DNS is not proof of registration or abuse. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • earthquakesRecent earthquakes from USGS, newest first: magnitude, place, time, depth, coordinates, tsunami flag and alert level.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Recent earthquakes from USGS, newest first: magnitude, place, time, depth, coordinates, tsunami flag and alert level. Filter by minimum magnitude, days back (max 30) and a radius around a point. Public domain data. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • econ_indicatorMacro indicators for any country from the World Bank (CC BY 4.0): GDP, GDP growth, GDP per capita, inflation (CPI), unemployment, population, current account, government debt and l…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Macro indicators for any country from the World Bank (CC BY 4.0): GDP, GDP growth, GDP per capita, inflation (CPI), unemployment, population, current account, government debt and lending interest rate, with the year, value and unit of each. Country by ISO2 or ISO3 code or exact name; indicator by friendly name or a raw World Bank code. Values lag by one to two years; years with no published value are left out. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • email_checkE-mail pre-check without SMTP: syntax, whether the domain can receive mail (MX or implicit MX, null MX, non-existent domain), disposable domain (9,000+ domain CC0 list), role accou…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    E-mail pre-check without SMTP: syntax, whether the domain can receive mail (MX or implicit MX, null MX, non-existent domain), disposable domain (9,000+ domain CC0 list), role account (info@, sales@...), free provider and a typo suggestion (gmial.com -> gmail.com). Verdict invalid / risky / unknown. Up to 50 addresses per call with emails=. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • embedMultilingual text embeddings (BGE-M3, 1024 dimensions) for up to 100 texts per call.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Multilingual text embeddings (BGE-M3, 1024 dimensions) for up to 100 texts per call. For search, RAG and clustering. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • encodeEncode or decode text as base64, base64url, hex, URL (percent) encoding, HTML entities, punycode (domain names) or quoted-printable.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Encode or decode text as base64, base64url, hex, URL (percent) encoding, HTML entities, punycode (domain names) or quoted-printable. Body { input, scheme, direction }, up to 1 MB. Invalid input to decode is a 400 that names the position of the first bad character. Unknown HTML entities are reported, not guessed. Pure code, no outside request. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • enforcement_actionsRecent enforcement items from the regulators' own feeds: SEC litigation releases and administrative proceedings, CFPB enforcement actions, FTC consumer-protection and competition p…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Recent enforcement items from the regulators' own feeds: SEC litigation releases and administrative proceedings, CFPB enforcement actions, FTC consumer-protection and competition press releases, DOJ press releases. Each: agency, feed, title, date, link, a short summary and, for SEC and CFPB, the respondent named in the title. Filters: agency, words (q), days (1-90). The feeds hold the latest 25-30 items each. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • ensENS on Ethereum mainnet.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    ENS on Ethereum mainnet. A name (vitalik.eth) resolves to its address, and an address resolves to its primary name, accepted only when that name resolves back to the same address. Returns the avatar and the url, com.twitter, com.github, description and email text records when set. A name that is not registered returns 200 with address null. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • entitiesNamed entities in a text or a page: people, organisations, places, dates and money amounts (from the chat model), plus e-mail addresses, URLs and phone numbers (from patterns), eac…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Named entities in a text or a page: people, organisations, places, dates and money amounts (from the chat model), plus e-mail addresses, URLs and phone numbers (from patterns), each de-duplicated with a count. With url, the page's readable text is used (robots.txt is respected). Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • eoriChecks up to 10 UK EORI numbers (GB or XI followed by 12 or 15 digits) with HMRC's public check: valid or not, with the processing date.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Checks up to 10 UK EORI numbers (GB or XI followed by 12 or 15 digits) with HMRC's public check: valid or not, with the processing date. HMRC does not publish the trader's name in this check, so it is null. An HMRC outage is a 503, not charged, never 'invalid'. EU EORI numbers are refused with a 400 in this version. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • eu_tendersActive EU public tenders from TED matching words, optionally for one buyer country: notice number, title, buyer, country, publication date, deadline, CPV codes and link, newest fir…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Active EU public tenders from TED matching words, optionally for one buyer country: notice number, title, buyer, country, publication date, deadline, CPV codes and link, newest first. Country is an ISO alpha-3 code (DEU, FRA, POL). Attribution: TED, EU open data. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_addressNative balance, nonce and account type of an EVM address on Base (default), Ethereum, Arbitrum, Optimism or Polygon: a wallet, a contract, or an EIP-7702 delegated wallet with its …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Native balance, nonce and account type of an EVM address on Base (default), Ethereum, Arbitrum, Optimism or Polygon: a wallet, a contract, or an EIP-7702 delegated wallet with its delegate. On Ethereum also the ENS primary name, when it resolves back to the address. Read over public RPC. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_allowanceERC-20 allowance an owner has granted a spender for one token: raw and human amount, with the token's symbol and decimals.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    ERC-20 allowance an owner has granted a spender for one token: raw and human amount, with the token's symbol and decimals. unlimited is true when the allowance is at least 2^255, the usual approve-everything value. Read-only. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_balanceERC-20 balance of an address for one token contract on a chain: token name, symbol, decimals, raw and human amount, and a USD value when Coinbase has a spot price for the symbol.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    ERC-20 balance of an address for one token contract on a chain: token name, symbol, decimals, raw and human amount, and a USD value when Coinbase has a spot price for the symbol. Only the token you name is read; the native balance is in /api/evm/address. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_blockAn EVM block by number, or the latest one: hash, time, transaction count, gas used and limit, and base fee in gwei.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    An EVM block by number, or the latest one: hash, time, transaction count, gas used and limit, and base fee in gwei. Read over public RPC. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_callRead-only contract call (eth_call): decodes the return value of a function you name, e.g.1 finding

    Why it is in this group

    • The name "evm_call" says "call": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "evm_call" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "evm_call" says "call": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Read-only contract call (eth_call): decodes the return value of a function you name, e.g. balanceOf(address) returns (uint256). Nothing is signed or sent. A function whose name reads like a write (transfer, approve, mint, set...) is refused unless it is declared view or pure. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_contractWhether a contract's source is verified on Sourcify (exact or partial match), with its name, compiler version, license, and the functions and events from its ABI.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Whether a contract's source is verified on Sourcify (exact or partial match), with its name, compiler version, license, and the functions and events from its ABI. A contract without verified source is answered with verified false, not an error. Chains: base (default), ethereum, arbitrum, optimism, polygon. Read-only. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_decodeFunction signatures for a 4-byte selector, and for calldata the decoded arguments.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Function signatures for a 4-byte selector, and for calldata the decoded arguments. Signatures come from the openchain.xyz database, with 4byte.directory as fallback. Calldata is decoded against each candidate until one fits the selector and the arguments; bigints are returned as strings. Read-only. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_nftERC-721 facts for one token: owner, collection name and symbol, tokenURI, and its metadata (name, description, image) when the URI is http(s) or ipfs.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    ERC-721 facts for one token: owner, collection name and symbol, tokenURI, and its metadata (name, description, image) when the URI is http(s) or ipfs. The metadata fetch has a 5-second timeout and a 256 KB cap; a failed fetch is reported in metadataNote and does not fail the call. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_tokenOn-chain facts about an ERC-20 contract on Base (default), Ethereum, Arbitrum, Optimism or Polygon, read over RPC: name, symbol, decimals, total supply, code size, whether it is a …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    On-chain facts about an ERC-20 contract on Base (default), Ethereum, Arbitrum, Optimism or Polygon, read over RPC: name, symbol, decimals, total supply, code size, whether it is a proxy (EIP-1967, EIP-1822 or the pre-1967 OpenZeppelin slots) with its implementation and admin, owner() and whether ownership is renounced, risky functions found in the bytecode, and plain warning flags. No paid security service is called. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_walletNative balance and the major tokens (USDC, USDT, EURC, DAI, WETH, cbBTC and WBTC where listed) of an EVM address on Base (default), Ethereum, Arbitrum, Optimism, Polygon, or chain=…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Native balance and the major tokens (USDC, USDT, EURC, DAI, WETH, cbBTC and WBTC where listed) of an EVM address on Base (default), Ethereum, Arbitrum, Optimism, Polygon, or chain=all, with USD values from Coinbase spot prices. One Multicall3 call per chain. Zero balances are omitted, and only the listed tokens are checked, not every token the wallet holds. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • exifCamera make and model, lens, date taken, exposure (ISO, shutter, aperture, focal length), orientation, image size, software, and GPS latitude, longitude and altitude with a map lin…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Camera make and model, lens, date taken, exposure (ISO, shutter, aperture, focal length), orientation, image size, software, and GPS latitude, longitude and altitude with a map link, from the EXIF of a JPEG, HEIC, TIFF or PNG image at a URL. Only the first 256 KB is read. A file that is not an image is 415; an image without EXIF is 200 with hasExif false. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • extractStructured data from a web page (url) or your own text: give a schema of up to 20 field names with what each holds, and get a JSON object with exactly those fields, null where the …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Structured data from a web page (url) or your own text: give a schema of up to 20 field names with what each holds, and get a JSON object with exactly those fields, null where the text does not state one. Llama 3.3 70B. Text is capped at 12,000 characters; a model answer that is not JSON is retried once, then not charged. Price: $0.004 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • fda_adverse_eventsThe most reported adverse reactions to a drug in FDA's FAERS database: counts, total reports and the share that were serious.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The most reported adverse reactions to a drug in FDA's FAERS database: counts, total reports and the share that were serious. Reports are voluntary and show association, not proof of cause. Source: openFDA. Information only, not medical advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • fda_labelThe latest US drug label (FDA SPL) for a brand or generic name: brand, generic name, manufacturer, indications, dosage, warnings and contraindications (each cut to 1,000 characters…1 finding

    Why it is in this group

    • The name "fda_label" says "label": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "fda_label" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "fda_label" says "label": a word for a change.

      What this check looks for
    Description, as the server wrote it
    The latest US drug label (FDA SPL) for a brand or generic name: brand, generic name, manufacturer, indications, dosage, warnings and contraindications (each cut to 1,000 characters) and the set id. Information from the label only; it is not medical advice. Source: openFDA. Information only, not medical advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • feedItems of an RSS, Atom or RDF feed, or of the feed a web page advertises: title, link, published date, author and a 300-character summary, newest first (max 50).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Items of an RSS, Atom or RDF feed, or of the feed a web page advertises: title, link, published date, author and a 300-character summary, newest first (max 50). since keeps items published on or after a date. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • finance_loanLoan and investment calculator in exact cents, no outside source.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Loan and investment calculator in exact cents, no outside source. mode=annuity: monthly payment, total interest and the full amortisation schedule (up to 600 months). mode=compound: future value of an initial sum plus monthly contributions. mode=npv or irr: discount or internal rate of return of a list of cashflows (up to 200, the first at time 0). Rates are percentages from 0 to 100 a year (per period for npv and irr); terms up to 50 years. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • foodPackaged food by barcode (EAN-8, UPC-A, EAN-13 or GTIN-14) or by name: product name, brand, quantity, Nutri-Score, NOVA group, nutrients per 100 g (energy, fat, saturated fat, carb…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Packaged food by barcode (EAN-8, UPC-A, EAN-13 or GTIN-14) or by name: product name, brand, quantity, Nutri-Score, NOVA group, nutrients per 100 g (energy, fat, saturated fat, carbohydrates, sugars, fibre, protein, salt), allergens, labels, ingredients text and front image URL. Open Food Facts data (ODbL, attribution in source). A barcode not in the database is a 404, not charged. Community data: values can be missing or wrong. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • gasGas prices on Base (default), Ethereum, Arbitrum, Optimism, Polygon or Solana, or chain=all for every chain at once: the base fee and slow, normal and fast priority fees, the lates…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Gas prices on Base (default), Ethereum, Arbitrum, Optimism, Polygon or Solana, or chain=all for every chain at once: the base fee and slow, normal and fast priority fees, the latest block, and what a plain transfer and an ERC-20 transfer cost in native token and USD. EVM figures come from eth_feeHistory over the last 20 blocks; Solana from recent prioritization fees. Cached 15 seconds. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • geocodePlace names to coordinates and back: up to 5 matches for a name, or the place at a coordinate.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Place names to coordinates and back: up to 5 matches for a name, or the place at a coordinate. Each match has a display name, latitude and longitude, country code and type. Attribution: © OpenStreetMap contributors, ODbL. Results are cached seven days. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • github_issuesIssues or pull requests of a GitHub repository, searched by words and state (open, closed or all), newest updated first: number, title, state, labels, author, comments, dates and l…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Issues or pull requests of a GitHub repository, searched by words and state (open, closed or all), newest updated first: number, title, state, labels, author, comments, dates and link. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • github_releasesThe latest releases of a GitHub repository: tag, name, date, pre-release flag, the first 1,500 characters of the notes, and the number of assets.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The latest releases of a GitHub repository: tag, name, date, pre-release flag, the first 1,500 characters of the notes, and the number of assets. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • github_repoA public GitHub repository: stars, forks, watchers, open issues and pull requests, license, default branch, created and pushed dates, topics, languages with shares, latest release,…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A public GitHub repository: stars, forks, watchers, open issues and pull requests, license, default branch, created and pushed dates, topics, languages with shares, latest release, commits in the last four weeks and the top five contributors. Up to six GitHub requests per call. Commit statistics are null while GitHub computes them. Source: GitHub REST API. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • github_userA GitHub user's public profile (name, company, location, blog, bio, followers, public repos, creation date) and their five most-starred repositories that are not forks.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A GitHub user's public profile (name, company, location, blog, bio, followers, public repos, creation date) and their five most-starred repositories that are not forks. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • grantsUS federal grant opportunities from Grants.gov matching keywords: number, title, agency, open and close dates (YYYY-MM-DD), status and link, newest opening date first.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    US federal grant opportunities from Grants.gov matching keywords: number, title, agency, open and close dates (YYYY-MM-DD), status and link, newest opening date first. Grants.gov matches keywords anywhere in the full listing, not only the title. Posted and forecasted opportunities by default. US government data. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • hashHashes of a text or base64 input (up to 1 MB): MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC-32, and HMAC-SHA-256 or HMAC-SHA-512 when a key is given.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Hashes of a text or base64 input (up to 1 MB): MD5, SHA-1, SHA-256, SHA-384, SHA-512 and CRC-32, and HMAC-SHA-256 or HMAC-SHA-512 when a key is given. Hex and base64 output. MD5 and CRC-32 are implemented here and checked against RFC 1321 and the standard CRC test vector. Body { input, encoding, algorithms, key }. Pure code and WebCrypto, no outside request. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • headersSecurity headers of a URL's final response: Strict-Transport-Security, Content-Security-Policy, X-Frame-Options (or CSP frame-ancestors), X-Content-Type-Options, Referrer-Policy, P…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Security headers of a URL's final response: Strict-Transport-Security, Content-Security-Policy, X-Frame-Options (or CSP frame-ancestors), X-Content-Type-Options, Referrer-Policy, Permissions-Policy, Cross-Origin-Opener-Policy and Cross-Origin-Resource-Policy, each with present, value, ok and advice. Also cookies missing Secure, HttpOnly or SameSite (names only), version leaks in Server or X-Powered-By, and a grade from A to F. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • hnHacker News stories or comments from the Algolia search API: keyword search (q) or the current front page (mode=front), optionally since a date.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Hacker News stories or comments from the Algolia search API: keyword search (q) or the current front page (mode=front), optionally since a date. Stories give title, URL, HN link, points, comments, author and time. Comments give their text (400 characters, HTML stripped) and the story title. Up to 50 results. Public data, no key. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • holidaysPublic holidays of a country (ISO 2 code) for a year (default: this year): date, local and English names, and whether the holiday is nationwide or regional with its counties.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Public holidays of a country (ISO 2 code) for a year (default: this year): date, local and English names, and whether the holiday is nationwide or regional with its counties. Source: Nager.Date. An empty list is a valid answer. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • ibanIBAN validation with no network call: ISO 13616 length and structure for every country in the SWIFT IBAN registry, the mod-97 checksum, national check digits where a public algorit…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    IBAN validation with no network call: ISO 13616 length and structure for every country in the SWIFT IBAN registry, the mod-97 checksum, national check digits where a public algorithm exists (FR, ES, IT, BE, NL, NO, FI, PL, PT and the Balkan countries), and the split into bank code, branch code and account. Returns the electronic and print format. Pass ibans= for up to 50 at once. No bank name or BIC lookup (no dataset is bundled). Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • imageGenerate an image from a text prompt (FLUX.1 schnell).1 finding

    Why it is in this group

    • The description's first verb is "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "image" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Generate an image from a text prompt (FLUX.1 schnell). Returns a base64 JPEG. Fast, 1024x1024. Price: $0.005 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • invoice_extractStructured data from an invoice: seller and buyer (name, address, tax ID), invoice number, dates, currency, line items, subtotal, tax, total and payment details, with null for anyt…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Structured data from an invoice: seller and buyer (name, address, tax ID), invoice number, dates, currency, line items, subtotal, tax, total and payment details, with null for anything absent. The arithmetic is checked (line sum against subtotal, subtotal plus tax against total) and mismatches are returned. PDF with a text layer by URL or base64, or plain text. Price: $0.005 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • ipWho owns an IP address: network name, CIDR, owner, abuse contact (RDAP), ASN and holder (RIPEstat), and reverse DNS.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Who owns an IP address: network name, CIDR, owner, abuse contact (RDAP), ASN and holder (RIPEstat), and reverse DNS. Private, reserved and documentation addresses are refused with 400. Public registry data only. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • json_repairRepairs broken JSON: markdown fences, comments, trailing commas, single quotes, unquoted keys, Python literals (True, False, None) and truncated endings.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Repairs broken JSON: markdown fences, comments, trailing commas, single quotes, unquoted keys, Python literals (True, False, None) and truncated endings. Pure code first; the model is asked once only when code cannot repair it. Optional JSON Schema check covers type, required, properties, items, enum, minimum, maximum, minLength, maxLength and pattern. Input max 1 MB. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • jwt_decodeDecodes a JWT (up to 16 KB): header, payload, registered claims as ISO dates, expired and not-yet-valid flags, algorithm and signature length.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Decodes a JWT (up to 16 KB): header, payload, registered claims as ISO dates, expired and not-yet-valid flags, algorithm and signature length. With jwksUrl (public https) the signature is checked with WebCrypto for RS, PS and ES algorithms against the matching key. 'none' is never accepted; HMAC needs the secret. Tokens are secrets: this tool does not store or log them. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • langThe language of a text with franc-min: ISO 639-3 and ISO 639-1 codes, the English name, confidence from 0 to 1, the script (Latin, Cyrillic, Arabic...) and the three next most like…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The language of a text with franc-min: ISO 639-3 and ISO 639-1 codes, the English name, confidence from 0 to 1, the script (Latin, Cyrillic, Arabic...) and the three next most likely languages. Send texts= (a JSON array of up to 20 strings) for a batch. Under 20 characters the answer is und with a note. 61 languages. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • leiLegal entity lookup in GLEIF by 20-character LEI or company name (best match plus up to 5 alternatives): legal name, status, jurisdiction, addresses, registration status and renewa…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Legal entity lookup in GLEIF by 20-character LEI or company name (best match plus up to 5 alternatives): legal name, status, jurisdiction, addresses, registration status and renewal date, direct and ultimate parent (or the reporting-exception reason), child counts with the first 10 direct children, and a one-line kycSummary. Source: GLEIF Global LEI Index (CC0). Price: $0.005 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • llms_txtWhether a site publishes /llms.txt and /llms-full.txt: the parsed llms.txt (title, summary, sections with their links) and the size of llms-full.txt.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Whether a site publishes /llms.txt and /llms-full.txt: the parsed llms.txt (title, summary, sections with their links) and the size of llms-full.txt. Reads the site itself, through the same URL guard and size cap as the page tools. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • macroOfficial rate and macro series in one call, by name: fed_funds, us_cpi, us_core_cpi, us_unemployment, us_10y, us_2y, us_mortgage_30y, us_gdp, wti_oil, brent_oil, henry_hub_gas, us_…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Official rate and macro series in one call, by name: fed_funds, us_cpi, us_core_cpi, us_unemployment, us_10y, us_2y, us_mortgage_30y, us_gdp, wti_oil, brent_oil, henry_hub_gas, us_house_price_index, ecb_deposit_rate, ecb_main_refi_rate and euro_area_hicp. Latest value, change vs previous and vs a year earlier, and observations. Up to 6 series. FRED (US public domain), the ECB Data Portal and Eurostat. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • markdownMarkdown to HTML with GitHub-flavoured tables and strikethrough, heading ids, the list of headings and links, and a word count.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Markdown to HTML with GitHub-flavoured tables and strikethrough, heading ids, the list of headings and links, and a word count. Raw HTML in the input is escaped unless allowHtml is true; links and images with javascript:, vbscript: or data: addresses are removed. Pure code, no outbound request. Input up to 200 KB. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • markets_briefOne Panta prediction market in depth: current YES/NO odds, recent trading activity and a short neutral AI summary of what it asks, what resolves it and what the price implies.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    One Panta prediction market in depth: current YES/NO odds, recent trading activity and a short neutral AI summary of what it asks, what resolves it and what the price implies. No advice. Powered by Panta. Price: $0.01 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • markets_build_buyBuild an unsigned Panta buy transaction (Solana v0, base64, plus the raw instructions) for your own wallet to sign and broadcast.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Build an unsigned Panta buy transaction (Solana v0, base64, plus the raw instructions) for your own wallet to sign and broadcast. SiteCheck never signs, holds keys or custodies funds. Then report the signature to POST /api/markets/report (free). Price: $0.01 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: true
  • markets_quoteQuote a YES or NO buy on a Panta market for a USDC amount and wallet: expected shares, average fill price, fee and price impact against the spot price.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Quote a YES or NO buy on a Panta market for a USDC amount and wallet: expected shares, average fill price, fee and price impact against the spot price. Nothing is signed or sent. Powered by Panta. Price: $0.005 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • media_transcriptSpeech to text from a media link: TikTok, X, SoundCloud, Facebook, Dailymotion, podcasts, Drive or Dropbox links, direct audio or video files.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Speech to text from a media link: TikTok, X, SoundCloud, Facebook, Dailymotion, podcasts, Drive or Dropbox links, direct audio or video files. Text, timestamped segments, language, duration; speaker labels on request. Price from maxMinutes (default 5, up to 120): direct file up to 25 MB $0.001 + $0.0006/min, other links $0.002 + $0.0009/min, speakers=1 $0.01/min. Longer media is refused unpaid. YouTube returns captions. No speech is a 404, not charged. Price: $0.0065 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • metaSEO and sharing metadata of one web page, read from its HTML without JavaScript: final URL and status, title and description with their lengths, canonical, robots meta, lang, hrefl…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    SEO and sharing metadata of one web page, read from its HTML without JavaScript: final URL and status, title and description with their lengths, canonical, robots meta, lang, hreflang, Open Graph and Twitter card tags, JSON-LD types and objects, favicon, heading outline, word count, and an issues list of plain sentences. robots.txt is respected. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • moderateSafety check of a text or a chat turn with Llama Guard 3: safe or unsafe, and the violated categories (S1 to S14, named in plain words).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Safety check of a text or a chat turn with Llama Guard 3: safe or unsafe, and the violated categories (S1 to S14, named in plain words). Send text, or messages (up to 20 turns). Classifies only; it does not change or block anything. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • npiUS healthcare providers from the NPPES NPI Registry: look up one by its 10-digit NPI (check digit verified) or search by name with an optional state.1 finding

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Info

      The description mentions "credential".

      Matched text

      description: "...state. Each provider gives type, name, credential, status, primary taxonomy and practice..."

      What this check looks for
    Description, as the server wrote it
    US healthcare providers from the NPPES NPI Registry: look up one by its 10-digit NPI (check digit verified) or search by name with an optional state. Each provider gives type, name, credential, status, primary taxonomy and practice address. Information only, not medical advice. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • packageFacts about a package on npm, PyPI or crates.io: latest version and date, license, description, repository, maintainers (npm), weekly downloads (npm), a deprecated or yanked flag, …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Facts about a package on npm, PyPI or crates.io: latest version and date, license, description, repository, maintainers (npm), weekly downloads (npm), a deprecated or yanked flag, and how many known vulnerabilities the latest version has (OSV). Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pagespeedGoogle PageSpeed Insights for one public URL: the Lighthouse scores (performance, seo, accessibility, best-practices), the lab Core Web Vitals (FCP, LCP, CLS, TBT, Speed Index), th…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Google PageSpeed Insights for one public URL: the Lighthouse scores (performance, seo, accessibility, best-practices), the lab Core Web Vitals (FCP, LCP, CLS, TBT, Speed Index), the CrUX field data when Google has it (LCP, INP, CLS), and the top five opportunities with estimated savings. Mobile by default. A run takes 10 to 40 seconds and is cached for an hour. Keyless calls share Google's quota, so a busy moment is a 503. Price: $0.005 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pdfPDF to text: send an https link or base64 (up to 15 MB) and get the text page by page plus title, author, page count and dates.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    PDF to text: send an https link or base64 (up to 15 MB) and get the text page by page plus title, author, page count and dates. Text PDFs only: a scanned PDF without a text layer answers 422 and is not charged. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • perps_accountA Hyperliquid account by address: account value, margin used and withdrawable amount in USD, and each open position with side, size, entry and mark price, unrealised PnL, leverage …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A Hyperliquid account by address: account value, margin used and withdrawable amount in USD, and each open position with side, size, entry and mark price, unrealised PnL, leverage and liquidation price. Read-only. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • perps_marketsHyperliquid perpetual futures: mark and oracle price, hourly and annualised funding, open interest in coins and USD, 24 h volume and maximum leverage, sorted by volume.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Hyperliquid perpetual futures: mark and oracle price, hourly and annualised funding, open interest in coins and USD, 24 h volume and maximum leverage, sorted by volume. With coin, that market only. Public data, cached 30 seconds. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • phoneChecks and formats a phone number with libphonenumber: valid and possible flags, E.164, international and national formats, country, calling code and line type (mobile, fixed line,…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Checks and formats a phone number with libphonenumber: valid and possible flags, E.164, international and national formats, country, calling code and line type (mobile, fixed line, toll free and so on). Without a + sign, give the country. No network call. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • placesPoints of interest near a point (lat and lon, or a place name geocoded through OpenStreetMap) within up to 5 km: pharmacies, restaurants, cafes, hospitals, ATMs, banks, fuel, EV ch…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Points of interest near a point (lat and lon, or a place name geocoded through OpenStreetMap) within up to 5 km: pharmacies, restaurants, cafes, hospitals, ATMs, banks, fuel, EV charging, hotels, supermarkets, parking, schools, police, toilets. Name, distance, address parts, opening hours, phone and website when tagged. OpenStreetMap data (ODbL). Up to 50 results. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pm_holdersThe largest position holders of each outcome of one Polymarket market (condition id from /api/pm/event): wallet, public name if the holder shows one, shares held, and each holder's…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The largest position holders of each outcome of one Polymarket market (condition id from /api/pm/event): wallet, public name if the holder shows one, shares held, and each holder's share of the listed top holders' total. Polymarket's Data API lists the top holders only, so totals cover those wallets, not the whole outcome supply. Up to 50 per outcome. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pm_walletOpen positions of a Polymarket wallet (proxy wallet address): market, outcome, size, average entry price, current price, value in USDC, cash and percent PnL, plus totals of the lis…1 finding

    Why it is in this group

    • The description's first verb is "open": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "pm_wallet" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "open": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Open positions of a Polymarket wallet (proxy wallet address): market, outcome, size, average entry price, current price, value in USDC, cash and percent PnL, plus totals of the listed positions and Polymarket's own portfolio value. The largest 500 positions are listed; truncated says when there are more. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • postcodePlace names and coordinates for a postcode.1 finding

    Why it is in this group

    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "postcode" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The input takes a statement or command to run (input.code), which can change anything it can reach.

      What this check looks for
    Description, as the server wrote it
    Place names and coordinates for a postcode. GB adds district, ward and constituency (postcodes.io); other countries use Zippopotam.us for ZIP and postal codes. A postcode that does not exist answers 404, not charged. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • prediction_polymarketActive Polymarket prediction markets matching search words, or one market by slug: the question, each outcome with its price as an implied probability, volume, liquidity, end date …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Active Polymarket prediction markets matching search words, or one market by slug: the question, each outcome with its price as an implied probability, volume, liquidity, end date and link. Closed markets are left out. Source: Polymarket Gamma API. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • producthuntProduct Hunt launches: today's top launches, the newest in one topic (for example artificial-intelligence), or a text search over the newest launches.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Product Hunt launches: today's top launches, the newest in one topic (for example artificial-intelligence), or a text search over the newest launches. Each has name, tagline, votes, comments, launch time, links and topics. Today is the top 20 by ranking kept when posted on today's UTC date; search covers the newest 60 launches only. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pubmedPubMed articles matching words, optionally from a year: PMID, title, first five authors, journal, date, DOI and link.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    PubMed articles matching words, optionally from a year: PMID, title, first five authors, journal, date, DOI and link. Two NCBI requests. Attribution: PubMed (NCBI). Information only, not medical advice. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • qrA QR code for a text of up to 300 characters (a URL, Wi-Fi login or contact card), generated locally.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A QR code for a text of up to 300 characters (a URL, Wi-Fi login or contact card), generated locally. format=svg returns the image itself as image/svg+xml; format=json returns the version, the module count, the SVG and a data URI. Error correction L, M, Q or H (default M); size from 128 to 1024 pixels (default 512). Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • recallsUS product recalls in one schema from openFDA enforcement reports (food, drug, device) and CPSC: date, product, firm, reason, FDA Class I/II/III mapped to high/medium/low (CPSC sev…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    US product recalls in one schema from openFDA enforcement reports (food, drug, device) and CPSC: date, product, firm, reason, FDA Class I/II/III mapped to high/medium/low (CPSC severity is derived from the hazard text), distribution and states, and the official link. Filter by keyword, since date (default 30 days), source and classification; up to 100 rows. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • redactReplaces personal data in a text with placeholders: e-mail addresses, phone numbers, IBANs (mod 97 checked), payment card numbers (Luhn checked only), IPv4 addresses and, with name…1 finding

    Why it is in this group

    • The description's first verb is "replace": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "redact" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "replace": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Replaces personal data in a text with placeholders: e-mail addresses, phone numbers, IBANs (mod 97 checked), payment card numbers (Luhn checked only), IPv4 addresses and, with names true, person names found by the chat model. Returns the redacted text and counts per type. Original values are never returned. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • redirectsThe redirect chain of a URL, hop by hop (at most 10 hops): each URL, its status, the Location it points to, and whether the hop goes from http to https or changes host.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The redirect chain of a URL, hop by hop (at most 10 hops): each URL, its status, the Location it points to, and whether the hop goes from http to https or changes host. Returns the final URL and status, total hops, loop true when a URL repeats, and the Strict-Transport-Security header of the final response. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • regex_generateA regular expression from a description, with examples that must match and examples that must not.1 finding

    Why it is in this group

    • The name "regex_generate" says "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "regex_generate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "regex_generate" says "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    A regular expression from a description, with examples that must match and examples that must not. The pattern is returned only when every example passes when tested in the service (one retry with the failures). Patterns with nested quantifiers are refused to avoid catastrophic backtracking. Examples are up to 10 strings of 300 characters each. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • rerankOrders up to 50 documents by relevance to a query with the BGE reranker and returns rank, index and score for each.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Orders up to 50 documents by relevance to a query with the BGE reranker and returns rank, index and score for each. Use it after a keyword or vector search to pick the best few. Scores compare documents within one call only. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • resume_parseStructured data from a CV or resume: name, contact details, location, links, summary, skills, languages, certifications, work experience and education, with null or empty lists whe…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Structured data from a CV or resume: name, contact details, location, links, summary, skills, languages, certifications, work experience and education, with null or empty lists where the text has nothing. Plain text, or a PDF with a text layer by URL or base64. Dates are kept as written. Price: $0.005 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • robotsChecks whether a URL's path may be crawled under robots.txt (RFC 9309): the verdict for a user agent (default: *, Googlebot, Bingbot, GPTBot, ClaudeBot, PerplexityBot, Google-Exten…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Checks whether a URL's path may be crawled under robots.txt (RFC 9309): the verdict for a user agent (default: *, Googlebot, Bingbot, GPTBot, ClaudeBot, PerplexityBot, Google-Extended and CCBot), the rule that decided it and its line, crawl-delay, sitemaps and the matching group's lines. Longest rule wins, allow wins a tie, * and $ work. No robots.txt means everything is allowed; a server error is a 503, not charged. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sanctionsScreen one person, company, vessel or aircraft name against the OFAC SDN and Consolidated lists, the EU consolidated list, the UN Security Council list and the UK Sanctions List (o…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Screen one person, company, vessel or aircraft name against the OFAC SDN and Consolidated lists, the EU consolidated list, the UN Security Council list and the UK Sanctions List (official files, refreshed daily). Fuzzy matching with aliases, transliteration and an optional country and date of birth to sharpen the score. Returns each possible match with its list, entry ID, score, programmes and official link. A screening aid, not a legal determination. Price: $0.01 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sec_eventsThe latest 8-K current reports of a US company (ticker or CIK) with their item codes explained in plain words (1.01 material agreement, 2.02 results, 5.02 executive change and so o…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The latest 8-K current reports of a US company (ticker or CIK) with their item codes explained in plain words (1.01 material agreement, 2.02 results, 5.02 executive change and so on). Each filing links to its document. US government data. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sec_filingsRecent SEC EDGAR filings of a company (10-K, 10-Q, 8-K and more), found by ticker, CIK or name.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Recent SEC EDGAR filings of a company (10-K, 10-Q, 8-K and more), found by ticker, CIK or name. A name that matches several filers returns candidates with HTTP 400, not charged. Each filing gives the form, filing and report dates, description, index page and primary document. Source: SEC EDGAR, public domain. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sec_financialsKey figures per fiscal year or quarter from a company's SEC XBRL filings, the numbers it tagged itself: revenue, net income, operating income, assets, liabilities, equity, cash, op…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Key figures per fiscal year or quarter from a company's SEC XBRL filings, the numbers it tagged itself: revenue, net income, operating income, assets, liabilities, equity, cash, operating cash flow, diluted EPS and shares outstanding. Each value carries the form and filing date it came from. Ticker or CIK. Source: SEC XBRL API, public domain. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sec_insidersThe latest Form 4 insider transactions of a US company (ticker, CIK or name): insider name and role, transaction date, code (P buy, S sell, A grant, M exercise, F tax withholding),…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    The latest Form 4 insider transactions of a US company (ticker, CIK or name): insider name and role, transaction date, code (P buy, S sell, A grant, M exercise, F tax withholding), shares, price and shares owned afterwards, with the filing link. Common-stock lines only; derivative grants are not listed. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • securities_idA security by ISIN, CUSIP or ticker (with an optional exchange code): its OpenFIGI id, name, ticker, exchange, security type and market sector, and for an ISIN the issuer's LEI and…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A security by ISIN, CUSIP or ticker (with an optional exchange code): its OpenFIGI id, name, ticker, exchange, security type and market sector, and for an ISIN the issuer's LEI and legal name from GLEIF. ISIN and CUSIP check digits are verified before the call. Attribution: FIGI by OpenFIGI; LEI by GLEIF. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sentimentSentiment of one text, or up to 20 (texts, a JSON array), each up to 2,000 characters: POSITIVE or NEGATIVE with the model's confidence, from DistilBERT SST-2.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Sentiment of one text, or up to 20 (texts, a JSON array), each up to 2,000 characters: POSITIVE or NEGATIVE with the model's confidence, from DistilBERT SST-2. Best for short English text. It measures the wording, not whether the statement is true. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sitemapAll URLs a website lists in its XML sitemaps (from robots.txt, /sitemap.xml or /sitemap_index.xml, following indexes), with lastmod, newest first.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    All URLs a website lists in its XML sitemaps (from robots.txt, /sitemap.xml or /sitemap_index.xml, following indexes), with lastmod, newest first. Filter by path prefix and changed-since date. For agents that need a site's page list before reading pages. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • solana_accountA Solana account: lamports and SOL with a USD value, owner program, executable flag and data size.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A Solana account: lamports and SOL with a USD value, owner program, executable flag and data size. Token accounts and mints are parsed (mint, owner, amount and decimals; supply and authorities). Read-only over Solana JSON-RPC. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • solana_tokenSolana token check for trading agents: price, market cap, FDV, liquidity, holders, 24h volume and trades, price change, organic-trading score, verification, top-holder and develope…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Solana token check for trading agents: price, market cap, FDV, liquidity, holders, 24h volume and trades, price change, organic-trading score, verification, top-holder and developer share (Jupiter), top pools (GeckoTerminal), plus on-chain mint authority, freeze authority, supply, decimals, token program and Token-2022 extensions, with red flags. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • solana_txA Solana transaction by signature: status, time, fee in SOL and USD, signers, SOL balance changes per account, token balance changes (mint, owner, change) and the programs it invok…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A Solana transaction by signature: status, time, fee in SOL and USD, signers, SOL balance changes per account, token balance changes (mint, owner, change) and the programs it invoked. Read-only; nothing is sent. A very new signature may be missing (404, not charged). Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • solana_walletSolana wallet holdings: SOL and every SPL / Token-2022 balance with name, symbol, USD price and value (Jupiter), sorted by value, plus the total in USD.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Solana wallet holdings: SOL and every SPL / Token-2022 balance with name, symbol, USD price and value (Jupiter), sorted by value, plus the total in USD. Dust and unpriced tokens hidden unless includeDust=1. Information only. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sql_generateSQL from a question and a schema (CREATE TABLE statements or a JSON description of tables and columns), for postgres (default), mysql, sqlite or bigquery.1 finding

    Why it is in this group

    • The name "sql_generate" says "generate": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "sql_generate" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The name "sql_generate" says "generate": a word for a change.

      What this check looks for
    Description, as the server wrote it
    SQL from a question and a schema (CREATE TABLE statements or a JSON description of tables and columns), for postgres (default), mysql, sqlite or bigquery. The tables and columns used are checked against the schema; a query that does not match it is retried once, then refused. Writes (INSERT, UPDATE, DELETE, DDL) are refused unless allowWrite is true. The query is not run. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sslTLS certificate expiry for up to 10 hostnames: the issuer, validity dates, days left, all DNS names and a status (ok, expiring within 14 days, expired, none found).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    TLS certificate expiry for up to 10 hostnames: the issuer, validity dates, days left, all DNS names and a status (ok, expiring within 14 days, expired, none found). Read from Certificate Transparency logs (CertSpotter, crt.sh as fallback), so it is the newest valid certificate issued for each name, not the one the server presents; the answer also says whether https answers and its HSTS header. Public hostnames only. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • stackoverflowStack Overflow questions matching words, optionally by tags and accepted status: title, score, answer count, accepted flag, tags and link.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Stack Overflow questions matching words, optionally by tags and accepted status: title, score, answer count, accepted flag, tags and link. With answers=1 the accepted answer's first 600 characters are included. Content is CC BY-SA 4.0 (attribution per item). Stack Exchange API 2.3. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • subdomainsSubdomains of a domain seen in certificate transparency logs: each name with the first and last certificate dates, the issuer of the newest certificate, and wildcard entries flagge…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Subdomains of a domain seen in certificate transparency logs: each name with the first and last certificate dates, the issuer of the newest certificate, and wildcard entries flagged. Deduplicated, newest first, up to 500. CertSpotter is read first, but its free index is partial, so those answers are marked truncated with the reason; crt.sh is the fallback and is complete. Only public certificates are listed. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sunSunrise, sunset, solar noon and day length for a coordinate and date (default today), with the moonrise, moonset and phase.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Sunrise, sunset, solar noon and day length for a coordinate and date (default today), with the moonrise, moonset and phase. Times are ISO 8601 with the offset MET Norway gives (+00:00 is UTC). Attribution: data from MET Norway (CC BY 4.0). Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • swiftChecks a SWIFT/BIC code (8 or 11 characters): the format, bank code, country and its name, location, test and passive flags, branch, and the institution's LEI, legal name and addre…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Checks a SWIFT/BIC code (8 or 11 characters): the format, bank code, country and its name, location, test and passive flags, branch, and the institution's LEI, legal name and address from GLEIF when a record carries that BIC. Without a GLEIF match the answer still gives the format check and institution null, with the reason. Pure code plus one GLEIF call, cached a day. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • tablesEvery HTML table of a web page as JSON: caption, headers and rows, up to 10 tables with 200 rows each.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Every HTML table of a web page as JSON: caption, headers and rows, up to 10 tables with 200 rows each. Tables that a script draws are not included. robots.txt is respected; a page it disallows answers 403, not charged. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • tariff_ukReturns UK Global Tariff data for a 6–10-digit commodity code via the UK Trade Tariff API (OGL v3): description, third-country duty rate, VAT, measures, and preferential rates for …1 finding

    Why it is in this group

    • The description's first verb is "return": a word for reading.
    • The input takes a statement or command to run (input.code), which can change anything it can reach.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "tariff_uk" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "return": a word for reading.

      What this check looks for
    Description, as the server wrote it
    Returns UK Global Tariff data for a 6–10-digit commodity code via the UK Trade Tariff API (OGL v3): description, third-country duty rate, VAT, measures, and preferential rates for a given origin country. Text search (`q`) returns matching commodity headings. Coverage: UK only, post-Brexit schedule. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • tariff_usUS HTS lines from the USITC HTS REST API: HTS number, description, general, special and column 2 rates, units and footnotes.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    US HTS lines from the USITC HTS REST API: HTS number, description, general, special and column 2 rates, units and footnotes. Look up by number (hts, e.g. 8471.30) or search words (q; every word must appear in the description). Chapter 99 lines (extra duties such as Section 301 or 232) come back separately. A blank rate on a statistical line means the rate is set on its parent heading. Up to 25 lines. Public domain. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • techWebsite technology detection: CMS, e-commerce platform, analytics, tag managers, CDN, hosting, chat, payments, A/B testing, consent tools and the e-mail provider, each with version…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Website technology detection: CMS, e-commerce platform, analytics, tag managers, CDN, hosting, chat, payments, A/B testing, consent tools and the e-mail provider, each with version, confidence 0-100 and evidence, from 231 own fingerprints over the home page, headers, cookies and the domain's MX/TXT records. For lead filtering and competitor research. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_answerAnswers a question from the given text only (max 30,000 characters), with supporting quotes and their character offsets.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Answers a question from the given text only (max 30,000 characters), with supporting quotes and their character offsets. Each quote is checked against the text and dropped if it does not occur in it. answerable is false when the text does not contain the answer. Model output: verify before relying on it. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_chunkSplit a long text into chunks for retrieval (RAG): split on paragraphs, then sentences, then words, each chunk within maxTokens (default 500) with the overlap you ask for (default …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Split a long text into chunks for retrieval (RAG): split on paragraphs, then sentences, then words, each chunk within maxTokens (default 500) with the overlap you ask for (default 50 tokens). Each chunk has its index, text, start and end character offsets and an estimated token count (characters divided by 4, a rough rule for English). Up to 1 MB and 2,000 chunks. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_faqUp to 15 question and answer pairs written from a text (max 30,000 characters).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Up to 15 question and answer pairs written from a text (max 30,000 characters). Each answer carries a supporting quote that is checked against the text; pairs whose quote does not occur in the text are dropped. Model-written: review the questions before publishing. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_grammarGrammar, spelling and style check with LanguageTool: each issue with its message, the offending text, its position, up to five suggestions, the rule id and category, plus the corre…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Grammar, spelling and style check with LanguageTool: each issue with its message, the offending text, its position, up to five suggestions, the rule id and category, plus the corrected text with the first suggestion of each issue applied. Body { text, language }: up to 20 KB, language auto by default. Text is sent only to LanguageTool's public API. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_headlinesUp to 10 headlines for a text or topic in one style: news, seo (under 60 characters, enforced in code), social or email subject.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Up to 10 headlines for a text or topic in one style: news, seo (under 60 characters, enforced in code), social or email subject. Each headline comes with its character count. Model output: check claims before publishing. Input text max 10,000 characters. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_keywordsKeywords and keyphrases from a text by RAKE (Rose et al., 2010) in pure code: phrases between stopwords and punctuation, scored by word degree and frequency, with counts.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Keywords and keyphrases from a text by RAKE (Rose et al., 2010) in pure code: phrases between stopwords and punctuation, scored by word degree and frequency, with counts. Stopword lists for en, de, fr, es, it, pt, nl and tr. Body { text, language, limit }: up to 100 KB, limit 1 to 50. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_outlineBuilds an outline (title, sections with headings and bullet points, optional word targets) for a topic, or from a text you give.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Builds an outline (title, sections with headings and bullet points, optional word targets) for a topic, or from a text you give. Depth 1-3, at most 12 sections. Model output: review it before use; word targets are estimates. Input text max 10,000 characters. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_paraphraseRewrite a text in a chosen tone (neutral, formal, casual, simple, persuasive) and length (shorter, same, longer), keeping its meaning and language.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Rewrite a text in a chosen tone (neutral, formal, casual, simple, persuasive) and length (shorter, same, longer), keeping its meaning and language. Up to 3 variants. Workers AI (Llama 3.3 70B) writes the rewrite; only the rewritten text is returned. Up to 8,000 characters. The model can change nuance, so read the result. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_readabilityReadability of a text in pure code: Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, SMOG, Coleman-Liau and ARI, with counts of characters, words, sentences, syllables and c…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Readability of a text in pure code: Flesch Reading Ease, Flesch-Kincaid grade, Gunning Fog, SMOG, Coleman-Liau and ARI, with counts of characters, words, sentences, syllables and complex words, and reading and speaking time. English formulas; other languages get counts only. Syllables are counted by a vowel-group heuristic, so scores are estimates. Up to 100 KB. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_toneTone analysis of a text (max 10,000 characters): formality 0-1, sentiment, emotion scores, tone labels such as friendly, aggressive or urgent, and short suggestions.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Tone analysis of a text (max 10,000 characters): formality 0-1, sentiment, emotion scores, tone labels such as friendly, aggressive or urgent, and short suggestions. The reading level (Flesch-Kincaid grade) is computed in code with a simple syllable count, so treat it as an estimate. Model judgements are not measurements. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_transliterateTransliterate text to Latin ASCII, or make a URL slug from it.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Transliterate text to Latin ASCII, or make a URL slug from it. Covers Cyrillic, Greek, Turkish, German, Nordic, Polish, Vietnamese and accented Latin letters. Characters with no table entry (Arabic, Hebrew, CJK ...) are kept and listed in unconverted, not guessed. Up to 2,000 characters. Pure code. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • tidesTide predictions (high and low water, metres above MLLW, UTC times) for 1 to 7 days at the NOAA station nearest a point, or at a station id, from NOAA CO-OPS (US public domain).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Tide predictions (high and low water, metres above MLLW, UTC times) for 1 to 7 days at the NOAA station nearest a point, or at a station id, from NOAA CO-OPS (US public domain). Give lat and lon, or a place name. Coverage is US coasts, Great Lakes and territories only; a point more than 100 km from a station is a 404, not charged. search=name lists stations. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • token_metadataToken facts read on chain: for an ERC-20 on 22 EVM chains the name, symbol, decimals, total supply and EIP-1967 proxy implementation; for a Solana SPL mint the decimals, supply, mi…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Token facts read on chain: for an ERC-20 on 22 EVM chains the name, symbol, decimals, total supply and EIP-1967 proxy implementation; for a Solana SPL mint the decimals, supply, mint and freeze authority. Adds price and liquidity from the token's deepest DexScreener pool on that chain, its logo and websites, and whether the Uniswap default list carries it (EVM). Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • trackersThird-party script and iframe hosts on a page, each classified (analytics, ads, tag manager, chat, session replay, social, consent, CDN), the cookies its first response sets (names…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Third-party script and iframe hosts on a page, each classified (analytics, ads, tag manager, chat, session replay, social, consent, CDN), the cookies its first response sets (names and flags only, never values) and whether a known consent manager is present. Static HTML only: scripts added at run time are not seen. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • transcribeSpeech-to-text with Whisper large-v3-turbo: send an https audio URL (or base64) up to 10 minutes and 25 MB, get the transcript, language and timestamped segments.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Speech-to-text with Whisper large-v3-turbo: send an https audio URL (or base64) up to 10 minutes and 25 MB, get the transcript, language and timestamped segments. Price: $0.01 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • translateTranslation with Llama 3.1 8B: up to 6,000 characters per call, formatting, names, numbers and URLs kept, source language detected when not given.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Translation with Llama 3.1 8B: up to 6,000 characters per call, formatting, names, numbers and URLs kept, source language detected when not given. Language codes like en, tr, de, fr, es, ar, zh, or language names. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • ttsText-to-speech as base64 audio.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Text-to-speech as base64 audio. Default: MeloTTS WAV, up to 2,000 chars, in English, Spanish, French, Chinese, Japanese or Korean, $0.002. quality "high": Deepgram Aura-2 natural English voices as MP3, up to 500 chars, $0.02. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • uk_companyA UK company from Companies House, by number (00445790) or name (best match plus up to four alternatives): status, incorporation date, registered office, SIC codes, accounts and co…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A UK company from Companies House, by number (00445790) or name (best match plus up to four alternatives): status, incorporation date, registered office, SIC codes, accounts and confirmation-statement due dates with overdue flags, current officers (max 20), persons with significant control (max 10) and the last 10 filings with links. Crown copyright, Open Government Licence v3.0. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • uk_insolvencyUK company insolvency notices (administrations, liquidations, winding-up petitions) from The Gazette, via our nightly cache of the last 8 days.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    UK company insolvency notices (administrations, liquidations, winding-up petitions) from The Gazette, via our nightly cache of the last 8 days. Filter by company name or number, postcode prefix, notice type and date. Returns company, number, notice type, date, nature of business, postcode and notice link, with the cache timestamp and any missing days; up to 10 rows can add Companies House status, SIC codes and address. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • uptimeChecks up to five public URLs now from this Worker: up or down, HTTP status, the final URL after up to five redirects, response time in milliseconds, whether TLS was used, content …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Checks up to five public URLs now from this Worker: up or down, HTTP status, the final URL after up to five redirects, response time in milliseconds, whether TLS was used, content type and length, and the Cloudflare data centre (colo) the check ran from. A down site is a valid 200 answer with up false and the error, not a failure. The check is one GET per hop, so it measures the first response, not the full page. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • us_geocodeGeocodes a one-line US address with the US Census Bureau: matched address, coordinates, county, state, census tract and block group.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Geocodes a one-line US address with the US Census Bureau: matched address, coordinates, county, state, census tract and block group. Addresses that do not match answer 404 (not charged). Public domain data. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • user_agentParses a User-Agent string: browser and version, rendering engine, operating system and version, device type, vendor and model, CPU, and whether it is a known crawler (Googlebot, B…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Parses a User-Agent string: browser and version, rendering engine, operating system and version, device type, vendor and model, CPU, and whether it is a known crawler (Googlebot, Bingbot, GPTBot, ClaudeBot, PerplexityBot, AhrefsBot and a few more) with its name. Optional Client Hints values (platform, mobile, model) are reported as given. Parsed with ua-parser-js 1.x (MIT). Pure code, no outside request. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • uuidIdentifiers and secrets from the Web Crypto random source: UUID v4 and v7, ULID, nanoid (size and alphabet), random passwords (length and character classes) and passphrases (words …No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Identifiers and secrets from the Web Crypto random source: UUID v4 and v7, ULID, nanoid (size and alphabet), random passwords (length and character classes) and passphrases (words from the EFF large wordlist, CC BY 3.0 US), up to 100 per call. mode=parse validates a UUID or ULID and reports its version, variant and the time embedded in v1, v6, v7 and ULID. Nothing is stored. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • vatEU VAT number check: format and checksum are tested locally first (a malformed number is rejected with HTTP 400 and no charge), then the official VIES service answers whether it is…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    EU VAT number check: format and checksum are tested locally first (a malformed number is rejected with HTTP 400 and no charge), then the official VIES service answers whether it is valid, with the registered name and address where the member state discloses them. All 27 EU states plus Northern Ireland (XI). Source: European Commission VIES. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • vinDecodes up to 20 vehicle identification numbers with NHTSA's vPIC database (US public domain): make, model, model year, trim, body class, vehicle type, engine (cylinders, displacem…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Decodes up to 20 vehicle identification numbers with NHTSA's vPIC database (US public domain): make, model, model year, trim, body class, vehicle type, engine (cylinders, displacement, fuel), drive type, plant country and city, manufacturer, and the decoder's own error code and message. The check digit is verified for North American VINs. A VIN that is not 17 characters without I, O or Q is a 400. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • violationsUS workplace and environmental enforcement cases by company, state and date: OSHA inspections with penalties (US Department of Labor API) and EPA enforcement cases (EPA ECHO), each…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    US workplace and environmental enforcement cases by company, state and date: OSHA inspections with penalties (US Department of Labor API) and EPA enforcement cases (EPA ECHO), each with the official record link. Filters: company, state, since, minPenalty, source. Public records matched by name, not a finding of guilt. Price: $0.005 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • vulnsKnown vulnerabilities of one package version in the OSV database: npm, PyPI, crates.io, Go or Maven.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Known vulnerabilities of one package version in the OSV database: npm, PyPI, crates.io, Go or Maven. Each advisory has its id, CVE aliases, summary, severity, fixed versions and a link. The count is the full number; up to 20 are listed. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • weatherWeather for a place or a coordinate: current conditions, the next 48 hours and 7 days (temperature, precipitation, wind, symbol).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Weather for a place or a coordinate: current conditions, the next 48 hours and 7 days (temperature, precipitation, wind, symbol). Forecast from MET Norway, cached until its own expiry time. Attribution: Data from MET Norway (CC BY 4.0). Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • weather_alertsActive US National Weather Service alerts for a state or a point: event, severity, urgency, area, onset, end of the event (ends), expiry of this message (expires), headline and ins…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Active US National Weather Service alerts for a state or a point: event, severity, urgency, area, onset, end of the event (ends), expiry of this message (expires), headline and instruction (cut to 400 characters). Attribution: National Weather Service, public domain. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • wikiA Wikipedia page summary by title or search words, in any language: title, short description, summary, page URL, thumbnail and Wikidata ID.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A Wikipedia page summary by title or search words, in any language: title, short description, summary, page URL, thumbnail and Wikidata ID. For organisations, people and places, Wikidata facts: official website, inception, country, headquarters, date of birth and coordinates. Text is CC BY-SA 4.0 with attribution. Not found returns search suggestions. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • wikidataRuns a read-only SPARQL query on Wikidata and returns the rows as plain values (ASK returns true or false).1 finding

    Why it is in this group

    • The description's first verb is "run": a word for a change.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

    Findings

    • Warn

      The server marks "wikidata" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

      Matched text

      annotations: {"readOnlyHint":true,"openWorldHint":true}; The description's first verb is "run": a word for a change.

      What this check looks for
    Description, as the server wrote it
    Runs a read-only SPARQL query on Wikidata and returns the rows as plain values (ASK returns true or false). Only SELECT and ASK are allowed; updates are refused. A LIMIT of 100 or less is added when missing. 8-second limit. Data is CC0. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • youtube_transcriptA YouTube video's captions as plain text and timestamped segments, with the video's title, channel, duration, views, publish date, chapters and the list of caption languages.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    A YouTube video's captions as plain text and timestamped segments, with the video's title, channel, duration, views, publish date, chapters and the list of caption languages. Accepts watch, youtu.be, shorts, embed and live links or the 11-character id; pick a language with lang (default English, else the first track). Auto-generated captions contain recognition errors. A video without captions is a 404 and not charged. Price: $0.01 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
Only reads 38Claude Code: allow
  • company_brReturns Brazilian company data from BrasilAPI (CNPJ lookup, MIT licence): legal name, trade name, status, opening date, legal nature, CNAE activities, address, share capital, and p…No findings

    Why it is in this group

    • The description's first verb is "return": a word for reading.
    Description, as the server wrote it
    Returns Brazilian company data from BrasilAPI (CNPJ lookup, MIT licence): legal name, trade name, status, opening date, legal nature, CNAE activities, address, share capital, and partners (QSA). CNPJ check digits are validated before any network call. Rate limit: BrasilAPI allows ~3 req/s. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • company_frSearches French companies via the official open API (recherche-entreprises.api.gouv.fr, Licence Ouverte v2).No findings

    Why it is in this group

    • The description's first verb is "search": a word for reading.
    Description, as the server wrote it
    Searches French companies via the official open API (recherche-entreprises.api.gouv.fr, Licence Ouverte v2). Returns legal name, SIREN, head-office SIRET and address, legal form, NAF activity code (no label in the API), creation date, status, size band, and directors when published. Rate limit: ~10 req/s (API's own limit). `limit` max 25. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • cronExplains a cron expression in plain English and lists its next runs in UTC and in a time zone.No findings

    Why it is in this group

    • The description's first verb is "explain": a word for reading.
    Description, as the server wrote it
    Explains a cron expression in plain English and lists its next runs in UTC and in a time zone. Five fields (minute hour day month weekday), or six with seconds first. Names (MON, JAN) and steps are supported. Computed in the Worker; no network call. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • describe_imageDescribes an image from an https URL or base64 (JPEG, PNG, GIF or WEBP, up to 4 MB): a short description, visible objects, whether it contains text, and the answer to an optional q…No findings

    Why it is in this group

    • The name "describe_image" says "describe": a word for reading.
    Description, as the server wrote it
    Describes an image from an https URL or base64 (JPEG, PNG, GIF or WEBP, up to 4 MB): a short description, visible objects, whether it contains text, and the answer to an optional question. Uses Llama 3.2 11B Vision; the model's answers can be wrong. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • dex_poolsFetches decentralized exchange (DEX) liquidity pools for a token or pair across chains via DexScreener (with GeckoTerminal fallback).No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches decentralized exchange (DEX) liquidity pools for a token or pair across chains via DexScreener (with GeckoTerminal fallback). Returns chain, DEX name, pair address, base/quote tokens, USD price, liquidity, 24h volume, 24h transaction count, price change percentages, and pool creation age. Limit up to 30 pools. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_logsEvent logs of a contract over recent blocks (default 1,000, max 5,000), newest first, max 100: block, transaction hash, topics and data.No findings

    Why it is in this group

    • The name "evm_logs" says "log": a word for reading.
    Description, as the server wrote it
    Event logs of a contract over recent blocks (default 1,000, max 5,000), newest first, max 100: block, transaction hash, topics and data. topic0 takes an event signature such as Transfer(address,address,uint256) or a 32-byte hash. Public nodes refuse very large results: narrow the range or add topic0. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • evm_txStatus, block, time, sender, recipient, value, gas used and fee (native and USD) of an EVM transaction, plus the ERC-20 Transfer events inside it (token, symbol, from, to, amount).No findings

    Why it is in this group

    • The description's first verb is "status": a word for reading.
    Description, as the server wrote it
    Status, block, time, sender, recipient, value, gas used and fee (native and USD) of an EVM transaction, plus the ERC-20 Transfer events inside it (token, symbol, from, to, amount). A pending transaction returns status pending. Read over public RPC; a fallback node is used when the first refuses old receipts. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • hiringSearch the current Hacker News 'Who is hiring?' thread: companies hiring, filtered by keywords and remote, with contact emails and links.No findings

    Why it is in this group

    • The description's first verb is "search": a word for reading.
    Description, as the server wrote it
    Search the current Hacker News 'Who is hiring?' thread: companies hiring, filtered by keywords and remote, with contact emails and links. Price: $0.01 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • json_validateValidates JSON data against a JSON Schema (draft 2020-12): valid true or false, and up to 50 errors with the instance path, the keyword and the message.No findings

    Why it is in this group

    • The name "json_validate" says "validate": a word for reading.
    Description, as the server wrote it
    Validates JSON data against a JSON Schema (draft 2020-12): valid true or false, and up to 50 errors with the instance path, the keyword and the message. Schema and data are each limited to 200 KB. Remote $ref targets are not fetched. No network call. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • law_ecfrSearches the US eCFR by keyword or retrieves the current text of a specific section (title, part, section) via the official eCFR API.No findings

    Why it is in this group

    • The description's first verb is "search": a word for reading.
    Description, as the server wrote it
    Searches the US eCFR by keyword or retrieves the current text of a specific section (title, part, section) via the official eCFR API. Returns hierarchy, heading, text (max 50,000 characters), last amended date, and official URL. Coverage: current CFR as published on ecfr.gov. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • law_federal_registerSearches Federal Register documents via the official API (public domain).No findings

    Why it is in this group

    • The description's first verb is "search": a word for reading.
    Description, as the server wrote it
    Searches Federal Register documents via the official API (public domain). Filter by terms, agency slug, document type (rule, proposed rule, notice, presidential document) and date range. Each result includes title, document number, type, agencies, publication date, effective date, comment end date, abstract, and PDF/HTML URLs. `limit` max 50. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • marketsSearch Panta prediction markets (USDC on Solana) by keywords, phase or category.No findings

    Why it is in this group

    • The description's first verb is "search": a word for reading.
    Description, as the server wrote it
    Search Panta prediction markets (USDC on Solana) by keywords, phase or category. Compact rows: question, YES/NO implied probability from live prices, volume, close and resolution times, resolution source. Powered by Panta. Information only, not financial advice. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • ocrReads the text of an image (JPEG, PNG, GIF or WEBP, up to 4 MB) with Llama 3.2 11B Vision on Workers AI.No findings

    Why it is in this group

    • The description's first verb is "read": a word for reading.
    Description, as the server wrote it
    Reads the text of an image (JPEG, PNG, GIF or WEBP, up to 4 MB) with Llama 3.2 11B Vision on Workers AI. Send an https url or base64 image, and optionally a language hint. Returns the full text with its line breaks, the lines, a language guess and the model that answered. An image with no readable text is a 422 and is not charged. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pm_activityFetches recent trading and on-chain lifecycle activity (trades, splits, merges, redemptions) for a Polymarket user or proxy wallet address.No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches recent trading and on-chain lifecycle activity (trades, splits, merges, redemptions) for a Polymarket user or proxy wallet address. Includes market question titles, action types, amounts, and transaction hashes. Limit up to 100 items. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pm_eventFetches details for a single Polymarket event by slug or numeric ID, including all associated markets, outcome tokens, implied probability prices, volume, liquidity, resolution sou…No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches details for a single Polymarket event by slug or numeric ID, including all associated markets, outcome tokens, implied probability prices, volume, liquidity, resolution source, rules, and start/end dates. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pm_historyFetches historical price points for a Polymarket outcome token across standard intervals (1h, 6h, 1d, 1w, max) or with custom fidelity.No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches historical price points for a Polymarket outcome token across standard intervals (1h, 6h, 1d, 1w, max) or with custom fidelity. Timestamps formatted in ISO. Maximum 1,000 points. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pm_leaderboardFetches top-ranked traders on Polymarket ranked by overall profit or trading volume across customizable time windows (day, week, month, all).No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches top-ranked traders on Polymarket ranked by overall profit or trading volume across customizable time windows (day, week, month, all). Includes rank, wallet address, username/pseudonym if public, profit PnL, and total trading volume. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pm_orderbookFetches resting order book depth for a Polymarket outcome token (or market slug and outcome name).No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches resting order book depth for a Polymarket outcome token (or market slug and outcome name). Returns top 20 bids and asks, midpoint price, spread, depth within 1/2/5 cents, and last trade price. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pm_resolvedFetches recently resolved prediction markets from Polymarket and Manifold over the last N days (max 30).No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches recently resolved prediction markets from Polymarket and Manifold over the last N days (max 30). Includes question, winning outcome, final prices/probabilities, resolution timestamp, and resolution source. Optional keyword filter. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • pm_tradesFetches latest trade executions for a Polymarket condition ID or token.No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches latest trade executions for a Polymarket condition ID or token. Returns timestamp, side (BUY/SELL), outcome label, execution price, size, value in USDC, and taker proxy wallet address. Limit up to 100 trades. Information only, not financial advice. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • readRead one web page as clean Markdown (or plain text) for an LLM: the main content without menus, cookie banners and footers, plus title, description, author, published date, languag…No findings

    Why it is in this group

    • The name "read" says "read": a word for reading.
    Description, as the server wrote it
    Read one web page as clean Markdown (or plain text) for an LLM: the main content without menus, cookie banners and footers, plus title, description, author, published date, language and canonical URL; links on request. robots.txt is respected (a disallowed page is refused and not charged). No JavaScript is run. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • research_papersSearches OpenAlex (CC0) for scholarly works: title, authors with institutions, year, venue, DOI, open-access PDF link, citation count, topic and abstract (max 2,000 characters).No findings

    Why it is in this group

    • The description's first verb is "search": a word for reading.
    Description, as the server wrote it
    Searches OpenAlex (CC0) for scholarly works: title, authors with institutions, year, venue, DOI, open-access PDF link, citation count, topic and abstract (max 2,000 characters). Filters: publication year range, open access only, minimum citations; sort by relevance, citations or date (citations and date search the words as one phrase). Limit max 25. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • rpc_evmRead-only JSON-RPC pass-through for 20+ EVM chains (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, zksync, mantle, blast, celo, fantom, sonic, …No findings

    Why it is in this group

    • The description's first verb is "read": a word for reading.
    Description, as the server wrote it
    Read-only JSON-RPC pass-through for 20+ EVM chains (ethereum, base, arbitrum, optimism, polygon, bsc, avalanche, gnosis, linea, scroll, zksync, mantle, blast, celo, fantom, sonic, unichain, opbnb, zora, mode, metis, cronos). Single or batch calls (up to 10). Write methods refused. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • rpc_solanaRead-only JSON-RPC pass-through for Solana mainnet.No findings

    Why it is in this group

    • The description's first verb is "read": a word for reading.
    Description, as the server wrote it
    Read-only JSON-RPC pass-through for Solana mainnet. Allowed methods: getAccountInfo, getBalance, getTransaction, getSignaturesForAddress (limit <= 100), getTokenAccountsByOwner, getTokenSupply, getSlot, getBlockTime, getLatestBlockhash, getMultipleAccounts (<= 20). Write methods and getProgramAccounts refused. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • screen_debarmentSearches the World Bank Listing of Ineligible Firms and Individuals for debarred and ineligible firms and individuals.No findings

    Why it is in this group

    • The description's first verb is "search": a word for reading.
    Description, as the server wrote it
    Searches the World Bank Listing of Ineligible Firms and Individuals for debarred and ineligible firms and individuals. Each hit: list, name, country, grounds, from/to dates, source URL. If a list is unreachable, returns listsUnavailable and 503 when none are checked. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • screen_export_controlSearches the US trade.gov Consolidated Screening List (Entity List, SDN, Denied Persons, Unverified, ITAR Debarred, etc.) by name and optional country.No findings

    Why it is in this group

    • The description's first verb is "search": a word for reading.
    Description, as the server wrote it
    Searches the US trade.gov Consolidated Screening List (Entity List, SDN, Denied Persons, Unverified, ITAR Debarred, etc.) by name and optional country. Each hit includes list name, aliases, addresses, programs, federal register notice, and match score. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • sec_13fReturns the latest Form 13F-HR holdings for an institutional investor by CIK or name search.No findings

    Why it is in this group

    • The description's first verb is "return": a word for reading.
    Description, as the server wrote it
    Returns the latest Form 13F-HR holdings for an institutional investor by CIK or name search. Each holding: issuer, class, CUSIP, value in USD, shares, put/call flag, largest first. Capped at 500 rows. Also returns the total value from the cover page, filing date and reporting period. Source: SEC EDGAR (public domain). EDGAR requests ≤10/s. Price: $0.004 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • summarizeA summary of a web page (url) or your own text (up to 12,000 characters) as short, medium or bullets, in the language you name, with key points.No findings

    Why it is in this group

    • The name "summarize" says "summarize": a word for reading.
    Description, as the server wrote it
    A summary of a web page (url) or your own text (up to 12,000 characters) as short, medium or bullets, in the language you name, with key points. Llama 3.3 70B. A page is read as in /api/read, robots.txt respected. Price: $0.003 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • text_diffDifferences between two texts: mode lines, words or chars; the added, removed and unchanged parts with counts, a similarity ratio (2 x unchanged / both texts' units), and a unified…No findings

    Why it is in this group

    • The name "text_diff" says "diff": a word for reading.
    Description, as the server wrote it
    Differences between two texts: mode lines, words or chars; the added, removed and unchanged parts with counts, a similarity ratio (2 x unchanged / both texts' units), and a unified diff for lines. Body { a, b, mode }: lines and words up to 50 KB each, chars up to 20 KB each (capped for the Worker's CPU budget). Pure code using the diff package (BSD-3-Clause). Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • validateChecks the check digit and structure of an identifier with no network call: ISBN-10 and ISBN-13 (with ISBN-10 to 13 conversion), EAN-8, UPC-A, EAN-13 and GTIN-14 (with the GS1 pref…No findings

    Why it is in this group

    • The name "validate" says "validate": a word for reading.
    Description, as the server wrote it
    Checks the check digit and structure of an identifier with no network call: ISBN-10 and ISBN-13 (with ISBN-10 to 13 conversion), EAN-8, UPC-A, EAN-13 and GTIN-14 (with the GS1 prefix country), VIN (manufacturer code, region, model year), IMEI, ISIN (country) and a generic Luhn number. type=auto detects the type. Up to 50 comma-separated values give a results array. Price: $0.001 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • web_security_txtFetches a site's security.txt from /.well-known/security.txt (fallback /security.txt) and parses the RFC 9116 fields: contacts, expiry (and whether it has expired), encryption, pol…No findings

    Why it is in this group

    • The description's first verb is "fetch": a word for reading.
    Description, as the server wrote it
    Fetches a site's security.txt from /.well-known/security.txt (fallback /security.txt) and parses the RFC 9116 fields: contacts, expiry (and whether it has expired), encryption, policy, acknowledgments, languages, canonical, hiring. Reports whether it is PGP-signed and lists RFC problems found. Public http(s) hosts only. Price: $0.002 in USDC per successful call, paid with x402 (Base, Solana or Arc); failed calls are not charged.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.8.5. Values in angle brackets are yours to fill in.

claude mcp add --transport http sitecheck https://api.sitecheck-api.workers.dev/mcp?ref=registry

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__sitecheck__hiring",
      "mcp__sitecheck__read",
      "mcp__sitecheck__validate",
      "mcp__sitecheck__ocr",
      "mcp__sitecheck__evm_tx",
      "mcp__sitecheck__evm_logs",
      "mcp__sitecheck__summarize",
      "mcp__sitecheck__sec_search",
      "mcp__sitecheck__describe_image",
      "mcp__sitecheck__cron",
      "mcp__sitecheck__json_validate",
      "mcp__sitecheck__text_diff",
      "mcp__sitecheck__pm_activity",
      "mcp__sitecheck__pm_event",
      "mcp__sitecheck__pm_history",
      "mcp__sitecheck__pm_leaderboard",
      "mcp__sitecheck__pm_orderbook",
      "mcp__sitecheck__pm_resolved",
      "mcp__sitecheck__pm_search",
      "mcp__sitecheck__pm_trades",
      "mcp__sitecheck__dex_pools",
      "mcp__sitecheck__rpc_evm",
      "mcp__sitecheck__rpc_solana",
      "mcp__sitecheck__token_search",
      "mcp__sitecheck__company_br",
      "mcp__sitecheck__company_fr",
      "mcp__sitecheck__law_ecfr",
      "mcp__sitecheck__law_federal_register",
      "mcp__sitecheck__screen_debarment",
      "mcp__sitecheck__screen_export_control",
      "mcp__sitecheck__sec_13f",
      "mcp__sitecheck__apps_search",
      "mcp__sitecheck__github_search",
      "mcp__sitecheck__hn_search",
      "mcp__sitecheck__package_search",
      "mcp__sitecheck__research_papers",
      "mcp__sitecheck__web_security_txt",
      "mcp__sitecheck__markets"
    ],
    "ask": [
      "mcp__sitecheck__image",
      "mcp__sitecheck__transcribe",
      "mcp__sitecheck__tts",
      "mcp__sitecheck__embed",
      "mcp__sitecheck__chat",
      "mcp__sitecheck__audit",
      "mcp__sitecheck__contacts",
      "mcp__sitecheck__vat",
      "mcp__sitecheck__iban",
      "mcp__sitecheck__lei",
      "mcp__sitecheck__recalls",
      "mcp__sitecheck__violations",
      "mcp__sitecheck__uk_insolvency",
      "mcp__sitecheck__email_check",
      "mcp__sitecheck__domain",
      "mcp__sitecheck__solana_token",
      "mcp__sitecheck__solana_trending",
      "mcp__sitecheck__tech",
      "mcp__sitecheck__pdf",
      "mcp__sitecheck__fx",
      "mcp__sitecheck__sitemap",
      "mcp__sitecheck__solana_wallet",
      "mcp__sitecheck__translate",
      "mcp__sitecheck__meta",
      "mcp__sitecheck__links",
      "mcp__sitecheck__redirects",
      "mcp__sitecheck__headers",
      "mcp__sitecheck__dns",
      "mcp__sitecheck__qr",
      "mcp__sitecheck__lang",
      "mcp__sitecheck__exif",
      "mcp__sitecheck__sec_filings",
      "mcp__sitecheck__sec_financials",
      "mcp__sitecheck__congress",
      "mcp__sitecheck__macro",
      "mcp__sitecheck__uk_company",
      "mcp__sitecheck__github_repo",
      "mcp__sitecheck__hn",
      "mcp__sitecheck__wiki",
      "mcp__sitecheck__gas",
      "mcp__sitecheck__solana_quote",
      "mcp__sitecheck__evm_token",
      "mcp__sitecheck__ens",
      "mcp__sitecheck__evm_wallet",
      "mcp__sitecheck__evm_address",
      "mcp__sitecheck__evm_balance",
      "mcp__sitecheck__evm_block",
      "mcp__sitecheck__evm_transfers",
      "mcp__sitecheck__evm_call",
      "mcp__sitecheck__evm_allowance",
      "mcp__sitecheck__evm_nft",
      "mcp__sitecheck__solana_tx",
      "mcp__sitecheck__solana_account",
      "mcp__sitecheck__crypto_price",
      "mcp__sitecheck__crypto_candles",
      "mcp__sitecheck__crypto_orderbook",
      "mcp__sitecheck__defi_tvl",
      "mcp__sitecheck__defi_yields",
      "mcp__sitecheck__defi_stablecoins",
      "mcp__sitecheck__sec_insiders",
      "mcp__sitecheck__weather",
      "mcp__sitecheck__geocode",
      "mcp__sitecheck__ip",
      "mcp__sitecheck__holidays",
      "mcp__sitecheck__postcode",
      "mcp__sitecheck__package",
      "mcp__sitecheck__vulns",
      "mcp__sitecheck__github_user",
      "mcp__sitecheck__arxiv",
      "mcp__sitecheck__doi",
      "mcp__sitecheck__extract",
      "mcp__sitecheck__sentiment",
      "mcp__sitecheck__rerank",
      "mcp__sitecheck__tables",
      "mcp__sitecheck__feed",
      "mcp__sitecheck__btc_fees",
      "mcp__sitecheck__btc_address",
      "mcp__sitecheck__btc_tx",
      "mcp__sitecheck__evm_decode",
      "mcp__sitecheck__evm_contract",
      "mcp__sitecheck__perps_markets",
      "mcp__sitecheck__perps_account",
      "mcp__sitecheck__prediction_polymarket",
      "mcp__sitecheck__crypto_fear_greed",
      "mcp__sitecheck__defi_fees",
      "mcp__sitecheck__defi_dex_volume",
      "mcp__sitecheck__company_registry",
      "mcp__sitecheck__securities_id",
      "mcp__sitecheck__sec_events",
      "mcp__sitecheck__fda_label",
      "mcp__sitecheck__fda_adverse_events",
      "mcp__sitecheck__clinical_trials",
      "mcp__sitecheck__pubmed",
      "mcp__sitecheck__grants",
      "mcp__sitecheck__eu_tenders",
      "mcp__sitecheck__npi",
      "mcp__sitecheck__us_geocode",
      "mcp__sitecheck__earthquakes",
      "mcp__sitecheck__weather_alerts",
      "mcp__sitecheck__sun",
      "mcp__sitecheck__timezone",
      "mcp__sitecheck__distance",
      "mcp__sitecheck__disasters",
      "mcp__sitecheck__llms_txt",
      "mcp__sitecheck__ai_crawlers",
      "mcp__sitecheck__trackers",
      "mcp__sitecheck__certs",
      "mcp__sitecheck__logo",
      "mcp__sitecheck__github_releases",
      "mcp__sitecheck__github_issues",
      "mcp__sitecheck__stackoverflow",
      "mcp__sitecheck__wikidata",
      "mcp__sitecheck__moderate",
      "mcp__sitecheck__classify",
      "mcp__sitecheck__entities",
      "mcp__sitecheck__redact",
      "mcp__sitecheck__phone",
      "mcp__sitecheck__crypto_whales",
      "mcp__sitecheck__ssl",
      "mcp__sitecheck__markdown",
      "mcp__sitecheck__pagespeed",
      "mcp__sitecheck__producthunt",
      "mcp__sitecheck__sanctions",
      "mcp__sitecheck__flights",
      "mcp__sitecheck__youtube_transcript",
      "mcp__sitecheck__media_transcript",
      "mcp__sitecheck__crypto_funding",
      "mcp__sitecheck__crypto_indicators",
      "mcp__sitecheck__crypto_news",
      "mcp__sitecheck__crypto_convert",
      "mcp__sitecheck__econ_indicator",
      "mcp__sitecheck__finance_loan",
      "mcp__sitecheck__translate_subtitles",
      "mcp__sitecheck__text_paraphrase",
      "mcp__sitecheck__text_grammar",
      "mcp__sitecheck__text_readability",
      "mcp__sitecheck__text_keywords",
      "mcp__sitecheck__text_transliterate",
      "mcp__sitecheck__text_chunk",
      "mcp__sitecheck__business_days",
      "mcp__sitecheck__date_calc",
      "mcp__sitecheck__units",
      "mcp__sitecheck__books",
      "mcp__sitecheck__food",
      "mcp__sitecheck__airports",
      "mcp__sitecheck__tides",
      "mcp__sitecheck__places",
      "mcp__sitecheck__robots",
      "mcp__sitecheck__hash",
      "mcp__sitecheck__encode",
      "mcp__sitecheck__jwt_decode",
      "mcp__sitecheck__uuid",
      "mcp__sitecheck__user_agent",
      "mcp__sitecheck__subdomains",
      "mcp__sitecheck__uptime",
      "mcp__sitecheck__vin",
      "mcp__sitecheck__eori",
      "mcp__sitecheck__swift",
      "mcp__sitecheck__company_ticker",
      "mcp__sitecheck__invoice_extract",
      "mcp__sitecheck__resume_parse",
      "mcp__sitecheck__address_parse",
      "mcp__sitecheck__pm_holders",
      "mcp__sitecheck__pm_wallet",
      "mcp__sitecheck__crypto_address_risk",
      "mcp__sitecheck__defi_chains",
      "mcp__sitecheck__evm_simulate",
      "mcp__sitecheck__token_metadata",
      "mcp__sitecheck__enforcement_actions",
      "mcp__sitecheck__tariff_uk",
      "mcp__sitecheck__tariff_us",
      "mcp__sitecheck__domain_typosquat",
      "mcp__sitecheck__wiki_pageviews",
      "mcp__sitecheck__text_answer",
      "mcp__sitecheck__code_explain",
      "mcp__sitecheck__email_reply",
      "mcp__sitecheck__text_faq",
      "mcp__sitecheck__text_headlines",
      "mcp__sitecheck__json_repair",
      "mcp__sitecheck__text_outline",
      "mcp__sitecheck__regex_generate",
      "mcp__sitecheck__sql_generate",
      "mcp__sitecheck__text_tone",
      "mcp__sitecheck__markets_brief",
      "mcp__sitecheck__markets_quote",
      "mcp__sitecheck__markets_build_buy"
    ],
    "deny": [
      "mcp__sitecheck__web_archive"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as sitecheck. Review it before you use it.