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MCP Queen

R0· no sign-in

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

v0.3.0 · active · repository · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality85good
Trust97of 100
Uptime, 30 days98%
Latency p50184 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "mcpqueen": {
      "type": "http",
      "url": "https://mcpqueen.com/mcp"
    }
  }
}
claude mcp add --transport http mcpqueen https://mcpqueen.com/mcp
[mcp_servers.mcpqueen]
url = "https://mcpqueen.com/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "mcpqueen": {
      "type": "remote",
      "url": "https://mcpqueen.com/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "mcpqueen": {
      "type": "http",
      "url": "https://mcpqueen.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=mcpqueen&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vbWNwcXVlZW4uY29tL21jcCJ9"
}
{
  "servers": {
    "mcpqueen": {
      "type": "http",
      "url": "https://mcpqueen.com/mcp"
    }
  }
}
{
  "mcpServers": {
    "mcpqueen": {
      "httpUrl": "https://mcpqueen.com/mcp"
    }
  }
}
extensions:
  "mcpqueen":
    enabled: true
    name: "mcpqueen"
    type: streamable_http
    uri: "https://mcpqueen.com/mcp"
    timeout: 300

Quality 85 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene86 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations7 of 7 tools declare readOnlyHint or destructiveHint
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: search_servers (idempotentHint); search_tools (idempotentHint); search_trust_evidence (idempotentHint); …
  • pass
    tools.token_costabout 1,307 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

7 tools, about 1,307 tokens to load them all · tool set 25cf236e7c02 · checked 2026-10-20 09:31 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 97 / 100

provenance100
liveness99
freshness85
hygiene100

+repository +namespace-matches-repo +dns-namespace +website +reachable +uptime-98% ~updated-84d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://mcpqueen.com/mcp streamable-httpnoneyes98%184 ms2025-06-182026-10-20

Tools (7)

get_server_graderead-onlyGet the full grade and verbatim probe evidence for one MCP server, by its official registry name (e.g. 'com.healthai/radar').
get_trust_receiptread-onlyGet 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.
list_gradesread-onlyList 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.
search_serversread-onlySearch 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.
search_toolsread-onlySearch 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.
search_trust_evidenceread-onlySearch 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.
submit_feedbackSubmit 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.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "com.mcpqueen/registry",
  "_meta": {},
  "title": "MCP Queen",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://mcpqueen.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.3.0",
  "repository": {
    "url": "https://github.com/mcpqueen/mcpqueen",
    "source": "github"
  },
  "websiteUrl": "https://mcpqueen.com",
  "description": "The evidence layer for MCP: live operational grades plus Trust Receipts for every registry server."
}