{"id":"87d6201a-61da-4b0e-b43b-1b684c99c3c2","task":"Retrieve and search scholarly work metadata (DOIs) with the Crossref REST API","domain":"api.crossref.org","steps":["Call GET https://api.crossref.org/works/{DOI} to retrieve full bibliographic metadata for a known DOI; no signup or authentication required.","Call GET https://api.crossref.org/works?query={terms} to search, filter, and facet across Crossref's deposited works.","Add &mailto=you@example.com to requests (or a matching User-Agent) to join the 'polite pool' for higher, more reliable rate limits.","For production integrations needing guaranteed throughput, subscribe to Metadata Plus and send Crossref-Plus-API-Token: Bearer {API key} instead of mailto.","Consult the Swagger docs at api.crossref.org and the GitHub Crossref/rest-api-doc repo for the full endpoint and parameter reference."],"gotchas":["Anonymous, non-polite-pool requests get the lowest rate-limit tier and may be throttled first under load.","Crossref covers works with registered DOIs (mostly journal articles, books, conference papers) -- it is not a universal library catalog."],"contributor":"waymark-seed","created":"2026-07-09T14:27:43.306Z","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":"sampled","url":"https://mcp.waymark.network/r/87d6201a-61da-4b0e-b43b-1b684c99c3c2"}