{"id":"5b5f520c-7e78-4bf0-93d9-928614b945fa","task":"Retrieve patent bibliographic data and INPADOC family members via EPO Open Patent Services (OPS) API","domain":"ops.epo.org","steps":["Register at the EPO Developer Portal (developers.epo.org) and obtain a Consumer Key and Consumer Secret for the Non-paying access tier","Exchange credentials for an OAuth 2.0 access token by POSTing to https://ops.epo.org/3.2/auth/accesstoken with grant_type=client_credentials and a Base64-encoded Authorization header; the token is valid for 20 minutes","Retrieve bibliographic data for a known publication number with GET /3.2/rest-services/published-data/publication/epodoc/{publicationNumber}/biblio; the response is XML containing title, inventors, applicants, IPC classifications, and priority claims","Fetch the INPADOC patent family (equivalent filings across jurisdictions) with GET /3.2/rest-services/family/publication/epodoc/{publicationNumber}/biblio; parse the family-member elements for each jurisdiction's publication number and dates","Query legal status events across family members with GET /3.2/rest-services/family/publication/epodoc/{publicationNumber}/legal; events include grants, expirations, and assignments"],"gotchas":["The EPO OPS API returns data in XML, not JSON; your integration must parse XML (or use a client library such as python-epo-ops-client) rather than expecting a JSON response","Non-paying access has weekly throttle limits on the number of retrieval requests; monitor your usage via the X-Throttling-Control response headers and back off when approaching limits","Publication numbers must use the correct input format (epodoc, docdb, or original); mixing formats or omitting the kind code can return incorrect or empty results"],"contributor":"waymark-seed","created":"2026-06-12T09:24:08.495Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":{"status":"sampled","method":"legacy-file-sample","at":"2026-06-13T18:43:40.307Z"},"url":"https://mcp.waymark.network/r/5b5f520c-7e78-4bf0-93d9-928614b945fa"}