If you’re ready to get down to the details of OCLC APIs, 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 our APIs.

Narrow by

Your selections:

OCLC service area

OCLC service name

Clear all

OCLC service area

  • Metadata services

OCLC service name

  • WorldCat Registry


    WorldCat Registry

    • Status: Production
    • Sandbox access: Yes

    Developer-level access to information in the Worldcat Registry: a free global directory for libraries, consortia, archives and museums. (http://www.worldcat.org/registry/institutions)

    Try the API » Read the documentation »