{"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":"2026-10-22T16:00:25.650Z","server":{"name":"io.github.minhtc/aifree","title":null,"description":"Verified free AI offers, API free tiers, credits and student/startup programs from aifree.dev.","version":"1.0.1","remote_url":"https://aifree.dev/mcp","repo_url":"https://github.com/aifree4dev/aifree.dev"},"operational_grade":{"grade":"A","score":93,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":137,"tool_count":8,"probed_at":"2026-10-22T11:16:06.306Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 137ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo aifree@1.0.1"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 8 tools e.g. \"search_free_ai_offers\"; 8/8 described, 8/8 fully-typed schemas, median description 204 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 137ms"},{"criterion":"provenance","points":8,"max":15,"evidence":"description present; repository linked; version 1.0.1; namespace io.github.minhtc does NOT match remote host (expected *.minhtc.github.io)"}],"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":"2026-10-22T11:16:06.306Z","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."}