{"attribution":"MCP Queen — the evidence layer for MCP (https://mcpqueen.com)","license":"CC BY 4.0 — free to use with attribution and a link to mcpqueen.com","methodology":"https://mcpqueen.com/registry#methodology","docs":"https://mcpqueen.com/api","generated_at":"2026-11-04T04:07:15.049Z","server":{"name":"cc.checkleaked/spotify-data","title":"Spotify Data","description":"Spotify play counts, monthly listeners, charts, artist stats, albums, playlists and ISRC lookup.","version":"0.1.1","remote_url":"https://spotify-proxy.checkleaked.cc/mcp","repo_url":"https://github.com/eduair94/spotify-data-mcp"},"operational_grade":{"grade":"A","score":100,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":150,"tool_count":13,"probed_at":"2026-11-02T20:45:58.763Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 150ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo spotify-data@0.1.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 13 tools e.g. \"search\"; 13/13 described, 13/13 fully-typed schemas, median description 185 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 150ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 0.1.1; namespace cc.checkleaked matches endpoint/repo"}],"protocol_access":"open"},"field_semantics":{"auth_state":"Deprecated name retained for compatibility. It means protocol handshake/discovery access only, not tool-level data entitlement.","protocol_access":"Preferred name for auth_state."},"audit_state":"observations_published","observations":[{"dimension":"security","metric":"authentication_boundary","status":"observed","value_text":"open","evidence":"Live protocol probe observed auth_state=open. This describes discovery/access behavior; it is not by itself a vulnerability finding.","source_type":"live_probe","sample_size":null,"observed_at":"2026-11-02T20:45:58.763Z","methodology_version":"trust-v1"}],"response_benchmarks":[],"reviewed_field_reports":[],"interpretation":"Dimensions are independent; missing evidence is not a pass; field reports are qualitative, moderated and never votes."}