{"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":"2026-10-26T05:29:40.416Z","server":{"name":"io.github.Batu1-1an/istanbul-mcp","title":"Istanbul MCP","description":"Read-only Istanbul open city data: transport, parking, water, nearby services and datasets.","version":"0.2.6","remote_url":"https://istanbulmcp-production.up.railway.app/mcp/","repo_url":"https://github.com/Batu1-1an/istanbulmcp"},"operational_grade":{"grade":"A","score":100,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":209,"tool_count":18,"probed_at":"2026-10-25T23:00:45.046Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 209ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo istanbul-mcp@0.2.6"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 18 tools e.g. \"istanbul_health\"; 18/18 described, 18/18 fully-typed schemas, median description 232 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 209ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 0.2.6; namespace io.github.Batu1-1an 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":"citation_quality","metric":"citation_capability_advertised","status":"unverified","value_text":null,"evidence":"Metadata/tool descriptions advertise citation or evidence capability: API reference: https://docs | istanbul_mobility_nearby Summarize mobility near a static place reference or coordinates | istanbul_city_services_nearby Summarize WiFi near a static reference point and district-level libraries/culture. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-25T23:00:45.046Z","methodology_version":"trust-v1"},{"dimension":"security","metric":"sensitive_capabilities_declared","status":"concern","value_text":"istanbul_transit_line","evidence":"1 discovered tool(s) advertise potentially state-changing or privileged capabilities. Tool names: istanbul_transit_line. Classification is description-based and does not prove exploitability.","source_type":"live_probe","sample_size":1,"observed_at":"2026-10-25T23:00:45.046Z","methodology_version":"trust-v1"},{"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":"2026-10-25T23:00:45.046Z","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."}