MCP Queen
A no-auth MCP server that probes and grades registry servers with verbatim evidence and trust receipts.
Install
claude mcp add --transport http mcpqueen https://mcpqueen.com/mcp
Add this to your Claude Code MCP settings or run via the CLI.
About
MCP Queen is a remote MCP server and evidence layer for the MCP ecosystem. It crawls the official registry, probes remote servers live, and publishes deterministic grades with verbatim observations. The service exposes a streamable HTTP MCP endpoint at `https://mcpqueen.com/mcp` with no authentication. It also provides machine-readable surfaces such as grades, changes, and trust evidence, plus per-server pages and setup guidance. The repository includes integration examples for Claude Code, Claude Desktop, LangChain, LlamaIndex, Cloudflare Agents, and Hugging Face. Its own MCP tools are focused on discovery and evidence, including `search_servers`, `get_trust_receipt`, and `search_trust_evidence`. The project is implemented as a Cloudflare Worker with D1 storage, scheduled registry syncs, and periodic read-only audits. The README documents deployment, database setup, and distribution checks.