Fresh402 Web Intelligence API

by kirillradchenko96 · remote · no sign-in to list tools · v2.4.0 · published by GitHub user kirillradchenko96

Web intelligence: free baseline, Check, Extract, Smart Diff and OpenAPI Diff. x402 USDC on Base.

Changes · 3

Compare Registry entry

5 tools: 3 change things and 2 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things3Claude Code: ask: see these tools
Only reads2Claude Code: allow: see these tools

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

claude mcp add --transport http fresh402 https://fresh402.kirilllabs.workers.dev/mcp

Findings

Matches of fixed checks, with the text they matched.

7 info

Infofresh402_register
The input schema at properties.url.description mentions "credentials".
Matched text
inputSchema.properties.url.description: "...e.com/docs'. Only port 443; no embedded credentials, private/local targets or authenticated..."
What this check looks for
Infofresh402_check
The description mentions "credential".
Matched text
description: "...d official mppx client, org.paymentauth/credential metadata and a persisted private recove..."
What this check looks for
Infofresh402_check
The input schema at properties.url.description mentions "credentials".
Matched text
inputSchema.properties.url.description: "...t 443, at most 4096 characters, with no credentials/private targets, e.g. 'https://example...."
What this check looks for
Infofresh402_extract
The description mentions "credential".
Matched text
description: "...d official mppx client, org.paymentauth/credential metadata and a persisted private recove..."
What this check looks for
Infofresh402_extract
The input schema at properties.url.description mentions "credentials".
Matched text
inputSchema.properties.url.description: "...e.com/docs'. Only port 443; no embedded credentials, private/local targets or authenticated..."
What this check looks for
Infofresh402_smart_diff
The description mentions "credential".
Matched text
description: "...d official mppx client, org.paymentauth/credential metadata and a persisted private recove..."
What this check looks for

Show 1 more finding

Infofresh402_openapi_contract_diff
The description mentions "credential".
Matched text
description: "...d official mppx client, org.paymentauth/credential metadata and a persisted private recove..."
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.

5 tools

Changes things 3Creates or changes something that can be changed back.Claude Code: ask

fresh402_checkCheck whether public HTML, JSON or text changed; use for on-demand freshness checks and a compact deterministic text diff, not background monitoring.2 findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Findings
- Info
  The description mentions "credential".
  Matched text
  description: "...d official mppx client, org.paymentauth/credential metadata and a persisted private recove..."
  What this check looks for
- Info
  The input schema at properties.url.description mentions "credentials".
  Matched text
  inputSchema.properties.url.description: "...t 443, at most 4096 characters, with no credentials/private targets, e.g. 'https://example...."
  What this check looks for
Description, as the server wrote it
Check whether public HTML, JSON or text changed; use for on-demand freshness checks and a compact deterministic text diff, not background monitoring. Supply exactly one of url or watch_id. A URL-based paid Check can create a watch; an ID reuses its saved URL/rules, so omit all content-rule fields. Reuse returned watch_id/hash for later checks; first URL check without prior state reports changed:null. Optional cache reuse still costs $0.005 USDC per call on Base mainnet (eip155:8453). Requires an x402-capable MCP payment client and funded native-USDC payer; an ordinary MCP client receives a payment challenge, not a paid result. Alternatively use prepaid credits through REST or this MCP tool: X-Fresh402-API-Key in HTTP, with params._meta["fresh402/prepaid"] containing idempotency_key, tariff_version and max_credits. When root mpp_payments.enabled is true, native MPP EVM charge is another option at the same USDC price: use an authorized Base EIP-712 signer and official mppx client, org.paymentauth/credential metadata and a persisted private recovery token. MPP receipt: org.paymentauth/receipt; see docs/MPP.md. Never combine MPP, prepaid and x402. Discover packages at /v2/prepaid/plans; see docs/AGENT_PREPAID.md for browserless wallet enrollment, bounded early credits and recovery. No JavaScript execution. Optional Circle Gateway x402 is available only when root circle_gateway.enabled is true. Use the GatewayWalletBatched quote, a funded Base Gateway EOA and a persisted private recovery token. Pending batches return 409; replay the original proof/input/token after 60 seconds. Results require Gateway confirmed/completed evidence; never mix providers. No Circle prepaid funding. See docs/CIRCLE_GATEWAY.md.
fresh402_extractExtract readable text, metadata, headings, public links and embedded JSON-LD from one public HTTPS document.2 findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Findings
- Info
  The description mentions "credential".
  Matched text
  description: "...d official mppx client, org.paymentauth/credential metadata and a persisted private recove..."
  What this check looks for
- Info
  The input schema at properties.url.description mentions "credentials".
  Matched text
  inputSchema.properties.url.description: "...e.com/docs'. Only port 443; no embedded credentials, private/local targets or authenticated..."
  What this check looks for
Description, as the server wrote it
Extract readable text, metadata, headings, public links and embedded JSON-LD from one public HTTPS document. Use to read static HTML, JSON or plain text; no watch or prior registration is needed. Optional CSS scope and noise exclusions; max_chars defaults to 20000 and limits returned text, not fetch size. Does not render JavaScript, crawl links or compare versions. $0.010 USDC per call on Base mainnet (eip155:8453), requiring an x402-capable MCP payment client and funded native-USDC payer. An ordinary MCP client receives a payment challenge. Alternatively use prepaid credits through REST or this MCP tool: X-Fresh402-API-Key in HTTP, with params._meta["fresh402/prepaid"] containing idempotency_key, tariff_version and max_credits. When root mpp_payments.enabled is true, native MPP EVM charge is another option at the same USDC price: use an authorized Base EIP-712 signer and official mppx client, org.paymentauth/credential metadata and a persisted private recovery token. MPP receipt: org.paymentauth/receipt; see docs/MPP.md. Never combine MPP, prepaid and x402. Discover packages at /v2/prepaid/plans; see docs/AGENT_PREPAID.md for browserless wallet enrollment, bounded early credits and recovery. Optional Circle Gateway x402 is available only when root circle_gateway.enabled is true. Use the GatewayWalletBatched quote, a funded Base Gateway EOA and a persisted private recovery token. Pending batches return 409; replay the original proof/input/token after 60 seconds. Results require Gateway confirmed/completed evidence; never mix providers. No Circle prepaid funding. See docs/CIRCLE_GATEWAY.md.
fresh402_registerCreate or retrieve a free persistent baseline for public HTTPS HTML, JSON or plain text.1 finding
Why it is in this group
- The description's first verb is "create": a word for a change.
Findings
- Info
  The input schema at properties.url.description mentions "credentials".
  Matched text
  inputSchema.properties.url.description: "...e.com/docs'. Only port 443; no embedded credentials, private/local targets or authenticated..."
  What this check looks for
Description, as the server wrote it
Create or retrieve a free persistent baseline for public HTTPS HTML, JSON or plain text. Use before Smart Diff or OpenAPI Contract Diff, or to obtain a reusable watch_id/hash for Check. Required url plus optional CSS/JSON exclusions identify the watch; changing rules creates a different watch. Repeating the same registration returns existing state without fetching or refreshing it. Reuse the actual returned watch_id; never invent an ID. Registration is free ($0), subject to quotas, and requires no x402 payment client; subsequent comparison tools are paid. Check also accepts url directly and can create its watch during the paid call. No JavaScript execution or background monitoring. For OpenAPI comparisons register the JSON contract without any content rules.

Only reads 2Looks things up and changes nothing.Claude Code: allow

fresh402_openapi_contract_diffDetect structural compatibility changes in a public JSON OpenAPI 3.0/3.1 contract: paths, methods, parameters, request requirements and response schemas.1 finding
Why it is in this group
- The name "fresh402_openapi_contract_diff" says "diff": a word for reading.
Findings
- Info
  The description mentions "credential".
  Matched text
  description: "...d official mppx client, org.paymentauth/credential metadata and a persisted private recove..."
  What this check looks for
Description, as the server wrote it
Detect structural compatibility changes in a public JSON OpenAPI 3.0/3.1 contract: paths, methods, parameters, request requirements and response schemas. Use for API contract review; Smart Diff is for general documents. First register the contract URL with free fresh402_register, without selectors or ignore rules, then reuse watch_id. compare_to accepts previous (default) or baseline; an available same-watch previous_hash overrides it. Limits include 256000 decoded document bytes, 100 paths and 500 operations. No YAML, external reference fetching, API-operation execution, LLM or complete compatibility guarantee. $0.020 USDC per call on Base mainnet (eip155:8453); requires an x402-capable MCP payment client and funded native-USDC payer, otherwise returns a payment challenge. Alternatively use prepaid credits through REST or this MCP tool: X-Fresh402-API-Key in HTTP, with params._meta["fresh402/prepaid"] containing idempotency_key, tariff_version and max_credits. When root mpp_payments.enabled is true, native MPP EVM charge is another option at the same USDC price: use an authorized Base EIP-712 signer and official mppx client, org.paymentauth/credential metadata and a persisted private recovery token. MPP receipt: org.paymentauth/receipt; see docs/MPP.md. Never combine MPP, prepaid and x402. Discover packages at /v2/prepaid/plans; see docs/AGENT_PREPAID.md for browserless wallet enrollment, bounded early credits and recovery. Optional Circle Gateway x402 is available only when root circle_gateway.enabled is true. Use the GatewayWalletBatched quote, a funded Base Gateway EOA and a persisted private recovery token. Pending batches return 409; replay the original proof/input/token after 60 seconds. Results require Gateway confirmed/completed evidence; never mix providers. No Circle prepaid funding. See docs/CIRCLE_GATEWAY.md.
fresh402_smart_diffExplain structured changes in a registered public document: JSON Pointer changes, HTML block changes and deterministic significance hints.1 finding
Why it is in this group
- The name "fresh402_smart_diff" says "diff": a word for reading.
Findings
- Info
  The description mentions "credential".
  Matched text
  description: "...d official mppx client, org.paymentauth/credential metadata and a persisted private recove..."
  What this check looks for
Description, as the server wrote it
Explain structured changes in a registered public document: JSON Pointer changes, HTML block changes and deterministic significance hints. Use instead of Check when a changed/unchanged flag or short text diff is insufficient. First obtain watch_id with free fresh402_register; saved URL/rules are reused. compare_to is previous (default) or baseline; previous_hash overrides it when the same-watch snapshot is retained. Up to 200 changes; legacy HTML may have text-only fidelity. No LLM, JavaScript rendering or complete API compatibility guarantee. $0.015 USDC per call on Base mainnet (eip155:8453); requires an x402-capable MCP payment client and funded native-USDC payer, otherwise returns a payment challenge. Alternatively use prepaid credits through REST or this MCP tool: X-Fresh402-API-Key in HTTP, with params._meta["fresh402/prepaid"] containing idempotency_key, tariff_version and max_credits. When root mpp_payments.enabled is true, native MPP EVM charge is another option at the same USDC price: use an authorized Base EIP-712 signer and official mppx client, org.paymentauth/credential metadata and a persisted private recovery token. MPP receipt: org.paymentauth/receipt; see docs/MPP.md. Never combine MPP, prepaid and x402. Discover packages at /v2/prepaid/plans; see docs/AGENT_PREPAID.md for browserless wallet enrollment, bounded early credits and recovery. Optional Circle Gateway x402 is available only when root circle_gateway.enabled is true. Use the GatewayWalletBatched quote, a funded Base Gateway EOA and a persisted private recovery token. Pending batches return 409; replay the original proof/input/token after 60 seconds. Results require Gateway confirmed/completed evidence; never mix providers. No Circle prepaid funding. See docs/CIRCLE_GATEWAY.md.

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 2.4.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http fresh402 https://fresh402.kirilllabs.workers.dev/mcp

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__fresh402__fresh402_smart_diff",
      "mcp__fresh402__fresh402_openapi_contract_diff"
    ],
    "ask": [
      "mcp__fresh402__fresh402_register",
      "mcp__fresh402__fresh402_check",
      "mcp__fresh402__fresh402_extract"
    ],
    "deny": []
  }
}

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 fresh402. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/io.github.kirillradchenko96/fresh402/changes.xml

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Anlyon alternative

3 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

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Source: MCP Registry · repository. Synced Oct 21, 2026, 18:37 UTC.

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