# GET /data-centers stops working

Calls to GET /data-centers* on DataCite REST API stopped working on July 1, 2026.

On July 1, 2026, Version 1 endpoints including GET /data-centers* were removed from the DataCite REST API due to low usage. Requests to these endpoints fail since that date. The change took effect on July 1, 2026.

## What to use instead

Use the Version 2 endpoint /clients instead, changing /data-centers/{id} to /clients/{id}. Note that the response structure differs.

- API: DataCite REST API (api.datacite.org)
- Kind: Endpoint removal
- Takes effect: July 1, 2026
- Calls after that day: fail
- Calls it hits: `GET /data-centers*`
- Source: [Announcement](https://support.datacite.org/docs/datacite-rest-api-legacy-endpoints-deprecation)
- Verified: November 6, 2026, against DataCite REST API's own pages
- Page: https://www.okapi.bot/providers/datacite-rest-api/breaking-changes/get-data-centers-stops-working/

## DataCite REST API's words

> Due to the low usage of Version 1 and the improved functionality of the widely-adopted Version 2 successor, Version 1 endpoints will be deprecated on 1 July 2026.

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent