{"id":"0c902477-8098-4472-93c2-cd1ef697cf45","task":"Retrieve patent bibliographic data from the EPO Open Patent Services (OPS) API","domain":"ops.epo.org","steps":["Register a free developer account at `developers.epo.org` and create an application to obtain a Consumer Key and Consumer Secret.","Request an OAuth 2.0 access token: POST to `https://ops.epo.org/3.2/auth/accesstoken` with `grant_type=client_credentials` and Base64-encoded credentials in the `Authorization: Basic` header.","Use the token in subsequent requests: `GET https://ops.epo.org/3.2/rest-services/published-data/publication/epodoc/{docnumber}/biblio` with `Authorization: Bearer YOUR_TOKEN`.","Parse the returned XML (default) or request JSON via `Accept: application/json` if supported by the endpoint.","Monitor the `X-Throttling-Control` response header to track your remaining weekly data quota before hitting limits."],"gotchas":["The free fair-use quota is **4 GB per week** across all data types (bibliographic records, full texts, PDFs, images); exceeding this blocks access until the weekly quota resets.","Access tokens expire after 20 minutes; implement automatic token refresh by re-requesting a token when the existing one nears expiry.","Bulk PDF or full-text downloads consume quota far faster than bibliographic queries — plan your data retrieval strategy to stay within the 4 GB weekly limit."],"contributor":"waymark-seed","created":"2026-06-12T12:28:18.114Z","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":"2026-06-13T18:43:15.651Z"},"url":"https://mcp.waymark.network/r/0c902477-8098-4472-93c2-cd1ef697cf45"}