Users can retrieve a chronologically sorted history of changes to WorldCat Entity data.
Note: Included with OCLC Meridian Subscription.
To learn about OCLC APIs and get started with the Entity Changes API, see:
If you're ready to start using the Entity Changes API, the OCLC Developer Network can help you learn more. The OCLC Developer Network allows you to learn about OCLC APIs, view OCLC API documentation, and participate in the OCLC APIs community.
The following types of changes can be retrieved by the Entity Changes API:
History Table | Changes API |
---|---|
Create entity value | Create |
Add, remove, or replace entity value | Update |
v1/changes
v1/changes/pages/1
v1/changes/pages/2...
entity-changes
GET v1/changes |
{ "context": [ "https://www.w3.org/ns/activitystreams", "https://id.oclc.org/api/context.json", "https://emm-spec.org/0.1/context.json" ], "summary": "Worldcat Entity - Changes", "type": "OrderedCollection", "id": "https://entities.api.oclc.org/changes", "first": { "type": "OrderedCollectionPage", "id": "https://entities.api.oclc.org/changes/pages/1" }, "last": { "type": "OrderedCollectionPage", "id": "https://entities.api.oclc.org/changes/pages/433" }, "totalItems": (total number of changed items) }
GET v1/changes/pages/{pageNumber} |
"type": "Add, Remove, Create, Replace", "published": "2024-04-12T08:31:31.514Z", "object": { "id": "E39QJKdVFFTCvc69T8GmRRt4gJ", "type": "ENTITY_PROPERTY", "updated": "2024-04-12T08:31:31.514Z"