Check the WorldCat Search API website for details. A request form for the service will soon be available on the WorldCat.org Affiliate Services page. OCLC’s xISBN and xISSN web services are also available from this page and are similarly free to qualifying OCLC member libraries.

More information about the WorldCat Search API can be found on the details webpage, including some sample applications that came out of the work of early release participants.

OCLC looks forward to seeing more sample applications as it extends the API to library members, and continued input will help to improve the service. The DevNet site will be a great place to share ideas and code for the service.