{"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":"2026-07-17T01:17:05.611Z","server":{"name":"org.string-db/string-mcp","title":"STRING Database MCP Server","description":"Query STRING interactions, enrichment, annotations, homology, and PPI networks.","version":"1.0.0","remote_url":"https://mcp.string-db.org/","repo_url":"https://github.com/meringlab/string-mcp"},"operational_grade":{"grade":"A","score":100,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":65,"tool_count":17,"probed_at":"2026-07-15T03:45:34.488Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 65ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo STRING Database MCP Server@2.13.1"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 17 tools e.g. \"string_resolve_proteins\"; 17/17 described, 17/17 fully-typed schemas, median description 757 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 65ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 1.0.0; namespace org.string-db 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":"unaudited","observations":[],"response_benchmarks":[],"reviewed_field_reports":[],"interpretation":"Dimensions are independent; missing evidence is not a pass; field reports are qualitative, moderated and never votes."}