# The Event Data API stops working

Calls to these calls on Crossref Event Data API stopped working on April 23, 2026.

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.

- API: Crossref Event Data API (api.eventdata.crossref.org)
- Kind: Endpoint removal
- Takes effect: April 23, 2026
- Calls after that day: fail
- Source: [Announcement](https://www.crossref.org/deprecated/)
- Page: https://www.okapi.bot/providers/crossref-event-data-api/breaking-changes/the-event-data-api-stops-working/

## What to use instead

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.

No replacement API: new events need another source, or the feature goes.

## Crossref Event Data API's words

> The Event Data public API was sunset on 23 April 2026.