MCP Queen
The evidence layer for MCP: live operational grades plus Trust Receipts for every registry server.
Connect it
Settings → Connectors → Add custom connector
URL: https://mcpqueen.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://mcpqueen.com/mcp{
"mcpServers": {
"registry": {
"url": "https://mcpqueen.com/mcp"
}
}
}claude mcp add --transport http registry https://mcpqueen.com/mcp{
"servers": {
"registry": {
"type": "http",
"url": "https://mcpqueen.com/mcp"
}
}
}7 tools, verified live
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 di
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.
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.
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.
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