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.

Download the Developer Network handbook

A printable guide to help you get started using OCLC Web Services.

8.5" x 11" / A9

Show your data source

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

Learn more »

Narrow by

Your selections:

OCLC service area

  • Resource Sharing and DeliveryRemove

Clear all


OCLC service area

  • Resource Sharing and Delivery

Web Services

    Article Exchange API

    • Status: Production
    • Sandbox access: Yes

    A write web service for cloud-based document delivery. Provides developer level access to the Article Exchange document-sharing site. Article Exchange provides a single, secure location where lending libraries can place requested documents and the borrowing library can retrieve articles or book chapters the library user requested via interlibrary loan. This url can be used to retrieve a document from the web service

    Read the documention »

    API access to: WorldShare Interlibrary Loan

    Interlibrary Loan Policies Directory

    • Status: Production
    • Sandbox access: No

    A read only web service that allows a developer to send a query about an OCLC member library using their OCLC Symbol or Registry ID and in return receive ILL policies information about that institution.

    Try the API » Read the documention »

    API access to: WorldShare Interlibrary Loan

We are a worldwide library cooperative, owned, governed and sustained by members since 1967. Our public purpose is a statement of commitment to each other—that we will work together to improve access to the information held in libraries around the globe, and find ways to reduce costs for libraries through collaboration. Learn more »