{"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":"2026-10-29T23:31:56.029Z","server":{"name":"com.getvuelo/travel","title":"Vuelo Travel","description":"Search and book live flights and hotels. No API key; the traveller confirms on their phone.","version":"1.0.1","remote_url":"https://mcp.getvuelo.com/mcp","repo_url":null},"operational_grade":{"grade":"A","score":94,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":758,"tool_count":15,"probed_at":"2026-10-29T17:47:08.980Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 758ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo vuelo@1.0.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 15 tools e.g. \"search_trips\"; 15/15 described, 15/15 fully-typed schemas, median description 480 chars"},{"criterion":"latency","points":7,"max":10,"evidence":"initialize round-trip 758ms"},{"criterion":"provenance","points":12,"max":15,"evidence":"description present; no repository URL; version 1.0.1; namespace com.getvuelo 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: Pass the reference you hold: a Vuelo hotel link (https://…/h/…), an offerId from an earlier Vuelo search, a Vuelo property_id (VHP_…) or a hotel id from a Vuelo search | e in this conversation; from any other conversation, a made booking can be cancelled with its Vuelo reference (VU- | y conversation: pass the taskId if the booking was made in this chat; otherwise their Vuelo booking reference (VU-. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-29T17:47:08.980Z","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":"2026-10-29T17:47:08.980Z","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."}