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WorldCat Search API

OCLC's catalog of library holdings worldwide.

Visit WorldCat Search APIDocs

More in Museums, Libraries & Archives

Europeana API

European cultural heritage images.

Library of Congress API

Digital collections.

HathiTrust Bibliographic API

Digital library metadata.

DPLA API

Digital Public Library of America.

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CategoryMuseums, Libraries & Archives
AuthenticationAPI key
PricingPaid
Websitehttps://www.oclc.org/developer/api/oclc-apis/worldcat-search-api.en.html
Docshttps://developer.api.oclc.org/
Last checked2026-10-14
As JSON/api/v1/directory/worldcat-search-api.json