{"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":"2026-10-12T04:58:05.032Z","server":{"name":"si.fourzerotwo/transport","title":"Transport & travel","description":"Airports, runways and frequencies worldwide, tides, UK road collisions and London transport.","version":"1.0.0","remote_url":"https://fourzerotwo.si/mcp/v/transport","repo_url":null},"operational_grade":{"grade":"A","score":97,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":117,"tool_count":31,"probed_at":"2026-10-12T00:31:04.085Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 117ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo fourzerotwo-vertical-transport@1.1.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 31 tools e.g. \"airports__airport\"; 31/31 described, 31/31 fully-typed schemas, median description 140 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 117ms"},{"criterion":"provenance","points":12,"max":15,"evidence":"description present; no repository URL; version 1.0.0; namespace si.fourzerotwo 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":"2026-10-12T00:31:04.085Z","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."}