{"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":"2026-10-29T01:59:20.338Z","server":{"name":"io.github.claudeisgod/wren-presign-check","title":"Wren Pre-sign Check","description":"Check a tx, EIP-712 payload, text or Base token before your agent signs. Paid per call over x402.","version":"1.4.0","remote_url":"https://wren-presign-check.wrenonbase.workers.dev/mcp","repo_url":null},"operational_grade":{"grade":"A","score":90,"provisional":0,"reachable":1,"auth_state":"open","latency_ms":146,"tool_count":4,"probed_at":"2026-10-28T20:30:42.667Z","evidence":[{"criterion":"reachability","points":25,"max":25,"evidence":"HTTP 200, initialize accepted in 146ms"},{"criterion":"protocol","points":15,"max":15,"evidence":"valid JSON-RPC initialize result, protocolVersion 2025-06-18, serverInfo wren-presign-check@1.4.0"},{"criterion":"tooling","points":35,"max":35,"evidence":"tools/list OK: 4 tools e.g. \"presign_check\"; 4/4 described, 4/4 fully-typed schemas, median description 711 chars"},{"criterion":"latency","points":10,"max":10,"evidence":"initialize round-trip 146ms"},{"criterion":"provenance","points":5,"max":15,"evidence":"description present; no repository URL; version 1.4.0; namespace io.github.claudeisgod does NOT match remote host (expected *.claudeisgod.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":"2026-10-28T20:30:42.667Z","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."}