{"what":"Defects in the public description of machine-callable operations - OpenAPI documents and MCP servers. Documents a directory claims are live and are not, hosts that no longer resolve, specifications that contradict the API they describe, authentication requirements that were never established and are now observed.","records":8047,"checked_here":6690,"reported_by_others_not_checked_here":0,"age":{"last_rechecked":"2026-10-26T11:09:05.698142+00:00","days_since_last_recheck":4.8,"stale":true,"warning":"These claims have not been re-checked for more than three days. The loop that keeps them true runs nightly, so it has stopped. Treat every record here as unverified until it resumes."},"how_to_trust_this":"Every record carries a `check`: a method, a URL and the result we saw. Run it. If the answer differs, the record is wrong and should be withdrawn - several already have been, by our own re-check.","what_this_is_not":"Not a ranking, not a review, not a directory of APIs. Absence from this registry means an operation was never examined, not that it is fine.","start_here":"/llms.txt","freshness_file":"/manifest.json","everything":"/errata.json","one_subject":"/subjects/<slug>.json","all_subjects":"/subjects.json","mcp_server":{"transport":"streamable-http","path":"/mcp","tools":["check_defects"],"note":"the same answer as /check, for a client that speaks MCP"},"check_one_tool":{"method":"GET","path":"/check?tool=<identity>","format":"GET /check","note":"for an agent holding a server name or a URL and about to use it. Three answers: defects_known, examined_nothing_open, never_examined - the last is not a clean bill of health."},"report_a_defect":{"method":"POST","path":"/submit","format":"GET /submit"},"verdicts_on_reports":"/contributions.json","for_people":"/index.html","licence":"CC BY 4.0"}