{"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":"2026-10-03T01:20:52.919Z","server":{"name":"io.github.cyanheads/iana-registries-mcp-server","title":null,"description":"Find IANA ports, MIME types, HTTP codes/fields, URI schemes, PENs, BCP 47 tags, RFCs, any registry.","version":"0.2.0","remote_url":"https://iana-registries.caseyjhand.com/mcp","repo_url":"https://github.com/cyanheads/iana-registries-mcp-server"},"operational_grade":{"grade":"A","score":100,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":476,"tool_count":10,"probed_at":"2026-10-02T20:15:58.422Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 476ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo iana-registries-mcp-server@0.2.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 10 tools e.g. \"iana_lookup_port\"; 10/10 described, 10/10 fully-typed schemas, median description 529 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 476ms"},{"criterion":"provenance","points":15,"max":15,"evidence":"description present; repository linked; version 0.2.0; namespace io.github.cyanheads 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: available: false`); their references are the defining documents | Returns the registered phrase, its class, defining reference with section, and whether it is temporary, obsoleted, or unused; an unassigned code returns found: false with the unassigned range it falls in | provisional, deprecated, or obsoleted — the Structured Field type when registered, and the defining reference. No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-02T20:15:58.422Z","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":"2026-10-02T20:15:58.422Z","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."}