MCP Queen MCP Server

by mcpqueen Your server? Claim it

answering

MCP Queen is answering right now. Last checked 11 min ago. It exposes 7 tools. Last commit 13 Sep 2026.

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

Uptime history 91 days of history · worst day 93%

91 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

160 ms

Response time

average over 24h

Stars

last commit 13 Sep 2026

Nothing serious here today

Today is the operative word: we check MCP Queen every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add registry --transport http https://mcpqueen.com/mcp

Settings → Connectors → Add custom connector, then paste this address

https://mcpqueen.com/mcp

~/.codex/config.toml

[mcp_servers.registry]
url = "https://mcpqueen.com/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "registry": {
      "url": "https://mcpqueen.com/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "registry": {
      "type": "http",
      "url": "https://mcpqueen.com/mcp"
    }
  }
}

Available tools 7

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

trust

get_trust_receipt

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.

search_trust_evidence

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.

grades

list_grades

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.

server

get_server_grade

Get the full grade and verbatim probe evidence for one MCP server, by its official registry name (e.g. 'com.healthai/radar').

servers

search_servers

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.

submit

submit_feedback

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.

tools

search_tools

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.

Endpoints

URL	Transport	State	Latency	Checked
https://mcpqueen.com/mcp	streamable-http	answering	163 ms	11 min ago

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MCP Queen — questions

Answers built from our own checks of this server.

What can MCP Queen do?

It exposes 7 tools, read directly from the server on our last check. Among them: get_server_grade, get_trust_receipt, list_grades, search_servers, search_tools, search_trust_evidence and 1 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is MCP Queen working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 160 ms. The bar chart above shows every period we have measured.

How do I connect MCP Queen?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does MCP Queen need an API key?

No. MCP Queen completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is MCP Queen?

It answers our handshake in 160 ms on average, which is faster than 82% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is MCP Queen open source?

The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at mcpqueen.com, which runs on its operator's own terms.