{"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":"2026-10-26T03:02:01.067Z","server":{"name":"dev.workers.regnotes.fx-reference-rates/fx-reference-rates","title":"FX Reference Rates","description":"ECB FX rates, cloud GPU and LLM API prices, World Bank country macro data; pay per call via x402","version":"1.1.0","remote_url":"https://fx-reference-rates.regnotes.workers.dev/mcp","repo_url":null},"operational_grade":{"grade":"A","score":94,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":600,"tool_count":9,"probed_at":"2026-10-25T21:30:42.312Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 600ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo fx-reference-rates@1.0.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 9 tools e.g. \"rates_latest\"; 9/9 described, 9/9 fully-typed schemas, median description 268 chars"},{"criterion":"latency","points":7,"max":10,"evidence":"initialize round-trip 600ms"},{"criterion":"provenance","points":12,"max":15,"evidence":"description present; no repository URL; version 1.1.0; namespace dev.workers.regnotes.fx-reference-rates 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: FX Reference Rates ECB FX rates, cloud GPU and LLM API prices, World Bank country macro data; pay per call via x402 rates_latest Today's exchange rates (forex reference rat | 100 USD to JPY) at the latest ECB reference rate or as of a past date | rates_historical ECB reference rates on a given date in any base; non-publication days fall back to the previous publication day (as_of). No response-level citation benchmark has verified this claim yet.","source_type":"live_probe","sample_size":null,"observed_at":"2026-10-25T21:30:42.312Z","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":"2026-10-25T21:30:42.312Z","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."}