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MCP Queen

com.mcpqueen/registrymcpqueen.comstreamable-httpv0.3.0Scanned

The evidence layer for MCP: live operational grades plus Trust Receipts for every registry server.

7 tools: 1 change things and 6 only read.

Tools: 0 delete, 0 irreversible, 1 write, 6 read.
  • Reads private data · 0
  • Reads text others write · 0
  • Can send data out · 0
  • No findings

Tools listed without sign-in. Remote posture

Anlyon alternative

1 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 →
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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.

7 tools

Changes things 1Claude Code: ask
  • submit_feedbackSubmit a field report about an MCP server you have actually used (what worked, what failed, surprising behavior).No findings

    Why it is in this group

    • The name "submit_feedback" says "submit": a word for a change.
    Description, as the server wrote it
    Submit a field report about an MCP server you have actually used (what worked, what failed, surprising behavior). Reports are quarantined for human review and never auto-published.

    Annotations the server declares

    • readOnlyHint: false
    • openWorldHint: false
    • destructiveHint: false
Only reads 6Show 6 read-only tools
  • get_server_gradeGet the full grade and verbatim probe evidence for one MCP server, by its official registry name (e.g.No findings

    Why it is in this group

    • The name "get_server_grade" says "get": a word for reading.
    Description, as the server wrote it
    Get the full grade and verbatim probe evidence for one MCP server, by its official registry name (e.g. 'com.healthai/radar').

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • get_trust_receiptGet one MCP server's complete evidence receipt: operational grade, deterministic security/data-integrity/citation/claim observations, and reviewed real-usage field reports.No findings

    Why it is in this group

    • The name "get_trust_receipt" says "get": a word for reading.
    Description, as the server wrote it
    Get one MCP server's complete evidence receipt: operational grade, deterministic security/data-integrity/citation/claim observations, and reviewed real-usage field reports. Missing observations are explicitly unaudited, never treated as a pass.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • list_gradesList the top graded MCP servers from the mcpqueen registry (deterministic probe grades with evidence).No findings

    Why it is in this group

    • The name "list_grades" says "list": a word for reading.
    Description, as the server wrote it
    List the top graded MCP servers from the mcpqueen registry (deterministic probe grades with evidence). Returns grade, score 0-100, latency, tool count and auth state per server.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • search_serversSearch the MCP evidence registry using a natural multi-word task (e.g.No findings

    Why it is in this group

    • The name "search_servers" says "search": a word for reading.
    Description, as the server wrote it
    Search the MCP evidence registry using a natural multi-word task (e.g. 'reliable no-auth drug interaction server with citations'). Tokenizes and expands common synonyms, ranks metadata plus observed tool descriptions, and supports operational-grade/auth/latency/category filters. Use get_trust_receipt or search_trust_evidence for security, data, citation, claim, and response evidence.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • search_toolsSearch across the actual tools that graded MCP servers expose (their tool names and descriptions, captured live from tools/list) — not just server metadata.No findings

    Why it is in this group

    • The name "search_tools" says "search": a word for reading.
    Description, as the server wrote it
    Search across the actual tools that graded MCP servers expose (their tool names and descriptions, captured live from tools/list) — not just server metadata. Use this when you need a specific capability or data type, e.g. 'get weather', 'query postgres', 'device recall', 'FDA 510k'. Returns the matching tools with the server that offers each, its grade, and the remote endpoint so you can connect directly.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false
  • search_trust_evidenceSearch published MCP trust evidence and reviewed real-usage field reports.No findings

    Why it is in this group

    • The name "search_trust_evidence" says "search": a word for reading.
    Description, as the server wrote it
    Search published MCP trust evidence and reviewed real-usage field reports. Use for questions such as which servers expose citations, have access caveats, make unverifiable corpus claims, or show security concerns. Returns verbatim observations with dates and source type, not a synthetic trust score.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
    • destructiveHint: false

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 untrusted-input or outbound.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write0
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
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 Oct 22, 2026, 14:36 UTC, unchanged since Oct 22, 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
1
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 1 tool that changes things (1 write). Whether a call also works without credentials was not tested: tools are never called.

    Matched text

    https://mcpqueen.com/mcp: tools/list returned 7 tools to an anonymous client, including submit_feedback (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 0.3.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http registry https://mcpqueen.com/mcp
claude mcp add --transport http registry https://mcpqueen.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__registry__search_servers",
      "mcp__registry__search_tools",
      "mcp__registry__list_grades",
      "mcp__registry__get_server_grade",
      "mcp__registry__get_trust_receipt",
      "mcp__registry__search_trust_evidence"
    ],
    "ask": [
      "mcp__registry__submit_feedback"
    ],
    "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 registry. Review it before you use it.

Pin

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.mcpqueen/registry/verify?hash=9ee9614d2baf532c636f90f64e0050aca46ba13343a118329c233f49ead1d47e" | jq -e '.changed == false'

Pinned hash 9ee9614d2baf, from Oct 21, 2026, 18:35 UTC.

Watch

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

https://anlyon.dev/servers/com.mcpqueen/registry/changes.xml

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Badge

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Source: MCP Registry · repository. Synced Oct 21, 2026, 17:59 UTC.