CrawlWitness

com.crawlwitness/oraclecrawlwitness.comstreamable-httpv1.0.52Scanned 6 hours ago

AI consent & licensing check for any domain, with signed on-chain receipts. Paid via x402.

6 tools: 5 change things and 1 only read.

Reads private data · 0
Reads text others write · 4
Can send data out · 0
No findings

Tools listed without sign-in. Remote posture

Anlyon alternative

5 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.

Import an OpenAPI spec →

Tools

Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.

6 tools

Changes things 5Creates or changes something that can be changed back.Claude Code: ask

ai_consent_scoreFree summary for a domain: 0-100 signal score and AI-training stance (reservado = reserved, permitido = allowed, sin_senal = no signal), from cache when available.Reads text others writeNo 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.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Free summary for a domain: 0-100 signal score and AI-training stance (reservado = reserved, permitido = allowed, sin_senal = no signal), from cache when available.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
- readOnlyHint: true
- title: AI consent score
can_ai_useFast yes/no verdict for one domain, one AI bot and one use (train, rag or search), from robots.txt, IETF AIPREF, W3C TDMRep, noai directives and RSL licenses, with the reasons and …Reads text others writeNo 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.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Fast yes/no verdict for one domain, one AI bot and one use (train, rag or search), from robots.txt, IETF AIPREF, W3C TDMRep, noai directives and RSL licenses, with the reasons and a signed receipt. Use it in a crawler or RAG pipeline before fetching each new domain. Costs 0.001 USD on Base (0.002 on Solana) via x402. Invalid domain or unknown bot is never charged.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
- readOnlyHint: true
- title: Can AI use
check_ai_consentFull AI-consent report for a domain: robots.txt rules for each AI bot (training, search and user-agent crawlers), RSL license, IETF AIPREF Content-Usage, W3C TDMRep, noai meta tags…Reads text others writeNo 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.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Full AI-consent report for a domain: robots.txt rules for each AI bot (training, search and user-agent crawlers), RSL license, IETF AIPREF Content-Usage, W3C TDMRep, noai meta tags, llms.txt and C2PA, combined into a 0-100 score and a training stance, plus a verifiable receipt (EAS attestation anchored on Base). Use it before crawling, training on or ingesting a site. Costs 0.005 USD in USDC via x402 (Base or Solana); without a payment it returns the x402 payment options. Unreachable sites are not charged.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
- readOnlyHint: true
- title: Check AI consent
check_walletSanctions screening of a crypto address against the US OFAC SDN list (all its digital-currency addresses: EVM, BTC, TRX, SOL, USDT, USDC…).Reads text others writeNo 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.
What it can reach
- untrusted-inputThe server marks it openWorldHint: true: it reaches things outside the server's own data.
Description, as the server wrote it
Sanctions screening of a crypto address against the US OFAC SDN list (all its digital-currency addresses: EVM, BTC, TRX, SOL, USDT, USDC…). Use it before an agent pays, receives from or interacts with a wallet. Returns sanctioned true/false, the listed entity and programs, the exact list version used and a signed receipt. Costs 0.005 USD via x402. Screening aid, not legal advice.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: true
- readOnlyHint: true
- title: Check wallet
signal_historyWhat a domain's robots.txt (or llms.txt, tdmrep.json, RSL license, homepage headers) said at a given instant, with the SHA-256 of each version and its EAS attestation anchored on 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
What a domain's robots.txt (or llms.txt, tdmrep.json, RSL license, homepage headers) said at a given instant, with the SHA-256 of each version and its EAS attestation anchored on Base. Without `source` it returns the index of versions; with `source` (and optional `at`, RFC 3339) the document in force at that instant. Covers only domains already analysed.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
- title: Signal history

Only reads 1Looks things up and changes nothing.Show 1 read-only tool

verify_receiptReturns the signed EAS attestation of a paid query and, once anchored, its Merkle proof (OpenZeppelin format) and the on-chain attestation on Base that contains it.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 signed EAS attestation of a paid query and, once anchored, its Merkle proof (OpenZeppelin format) and the on-chain attestation on Base that contains it.
Annotations the server declares
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
- readOnlyHint: true
- title: Verify receipt

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.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data or outbound.

Reads private data0: Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write4: Brings in text someone else can write: web pages, inbound email, messages, issues and comments.; ai_consent_score
can_ai_use
check_ai_consent
check_wallet
Can send data out0: Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Remote posture

What anyone on the internet sees at the remote endpoint: an anonymous initialize and tools/list, and the public OAuth metadata.

Tools listed without sign-in

Looked at Nov 2, 2026, 00:18 UTC, unchanged since Nov 2, 2026. No credentials were sent and no tool was called. What is looked at.

Reachable: yes
HTTP status of an anonymous initialize: 200
tools/list served without credentials: yes
Tools that change things, listed without credentials: 5
Protocol version: 2025-06-18
WWW-Authenticate on 401: not observed
resource_metadata in WWW-Authenticate: not observed
RFC 9728 protected resource metadata: not observed
Authorization servers: not observed
Legacy HTTP+SSE transport: no
Dynamic client registration: not observed
Client ID metadata documents: not observed

WarnThe whole server
The endpoint served tools/list without credentials, and the list has 5 tools that change things (5 write). Whether a call also works without credentials was not tested: tools are never called.
Matched text
https://api.crawlwitness.com/mcp: tools/list returned 6 tools to an anonymous client, including check_ai_consent (write), can_ai_use (write), ai_consent_score (write), signal_history (write), check_wallet (write)
What this check looks for

Findings

Matches of fixed checks, with the text they matched.

No check matched anything in these tool definitions. That is not a safety guarantee.

History

Changes to its tool definitions and to its remote endpoint, newest first.

No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.

All changes to this server

Install

Pinned to version 1.0.52. Values in angle brackets are yours to fill in.

claude mcp add --transport http oracle https://api.crawlwitness.com/mcp

claude mcp add --transport http oracle https://api.crawlwitness.com/mcp

Run in a terminal.

Claude Code permissions

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

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__oracle__verify_receipt"
    ],
    "ask": [
      "mcp__oracle__check_ai_consent",
      "mcp__oracle__can_ai_use",
      "mcp__oracle__ai_consent_score",
      "mcp__oracle__signal_history",
      "mcp__oracle__check_wallet"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as oracle. Review it before you use it.

Capability tags behind 4 rules

mcp__oracle__check_ai_consent untrusted-input
mcp__oracle__can_ai_use untrusted-input
mcp__oracle__ai_consent_score untrusted-input
mcp__oracle__check_wallet untrusted-input

Keep the decision: fail CI when the tools change, follow every change, or show a badge.

Pin in CI

Fail a build when the tools you reviewed are not the tools the server serves today.

curl -s "https://anlyon.dev/api/v1/servers/com.crawlwitness/oracle/verify?hash=e1d993288699a3737f2ea30bb4b75a85790540baa0b9a50930e5f28346ea8c66" | jq -e '.changed == false'

Pinned hash e1d993288699, from Nov 1, 2026, 23:17 UTC.

Watch

Get told when its tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.crawlwitness/oracle/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Badge

[![anlyon.dev](https://anlyon.dev/badge/com.crawlwitness/oracle.svg)](https://anlyon.dev/servers/com.crawlwitness/oracle)

Source: MCP Registry. Synced Nov 2, 2026, 00:17 UTC.