Web Services

If you’re ready to get down to the nitty gritty of OCLC web services, you’re in the right place. Find documentation for API URLs, content negotiation options, response formats and sample requests. Prefer to learn by doing? Try an API using our API Explorer.

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Add a WorldCat attribution to your site to help people connect WorldCat with libraries. Learn more »

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Web Services

    WorldCat knowledge base API

    • Status: Production
    • Sandbox access: Yes

    A read-only service for e-resource discovery and linking. Provides developer-level access to a library's information in the WorldCat knowledge base. The WorldCat knowledge base combines data about your library's econtent with access to it through linking features.

    Try the API » Read the documentation »