{"slug":"crossref-event-data-api","name":"Crossref Event Data API","host":"api.eventdata.crossref.org","site":"https://crossref.org","category":"data","docsUrl":null,"sources":[{"kind":"archive","url":"https://www.crossref.org/deprecated/"}],"url":"https://www.okapi.bot/providers/crossref-event-data-api/","json":"https://www.okapi.bot/api/v1/providers/crossref-event-data-api.json","breakingChanges":[{"slug":"the-event-data-api-stops-working","api":"crossref-event-data-api","title":"The Event Data API stops working","kind":"removal","outcome":"fails","model":null,"announcedAt":null,"effectiveAt":"2026-04-23","scope":null,"calls":[],"method":null,"path":null,"source":{"url":"https://www.crossref.org/deprecated/","kind":"archive"},"quote":"The Event Data public API was sunset on 23 April 2026.","migration":"Remove the Event Data calls; the events Crossref collected stay available as a static repository, linked from the notice.","migrationChange":null,"needsDecision":"No replacement API: new events need another source, or the feature goes.","text":{"summary":"The Event Data API will be sunset on April 23, 2026. All calls to api.eventdata.crossref.org will fail after this date. Crossref is removing the service entirely, ending access to the public API.","migration":"Remove calls to the Event Data API. Events already collected remain accessible through a static repository, but there is no replacement API. Teams must find another source for new events or remove the dependent feature.","by":"writer"},"publishedAt":"2026-10-23T09:56:24.847Z","updatedAt":"2026-10-24T08:50:57.759Z","status":"in_effect","tone":"broken","url":"https://www.okapi.bot/providers/crossref-event-data-api/breaking-changes/the-event-data-api-stops-working/"}]}