OCLC Developer Network
OCLC Developer Network:
Elevate the importance of your library on campus and elsewhere
Browse APIs
Build with our APIs
Access technical documentation and start building
Find APIs
Explore OCLC’s APIs and the application gallery
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Request access and manage your WSKeys for OCLC services
Data is the foundation of nearly all OCLC services, and we take pride in being a vendor-neutral technology provider.
We at OCLC recognize that businesses, the tech world, and higher education are abuzz with discussions and predictions about big data. OCLC’s APIs are powerful tools that enable libraries like yours to interact with your users and experiment with your data in new ways.
Leading the way on AI for libraries
Explore how OCLC is shaping the future with library-specific AI solutions that are practical, ethical, and ready for real-world impact.
Featured APIs and applications
Create, curate, and connect linked data entities
Use the OCLC Meridian® web application and set of APIs to connect to the existing value of linked data entities and descriptive relationships in MARC records and other datasets.
APIs available:
Entity Management API, Entity Search API, PID Lookup API, Entity Changes API, Entity Connections API, Entity Query API
Support your university’s academic strategy with Talis Aspire
Connect OCLC’s WorldShare® Management Services (WMS) with the market-leading resource list management system, Talis Aspire. Resource lists in Aspire appear in WMS workflows around the discovery, acquisition, receiving, and withdrawal of library materials.
Integrates with:
WorldShare Management Availability API, WorldCat® Search API, WorldCat knowledge base API
Use various metadata and search API functions with MarcEdit
MarcEdit is a free metadata editing suite that provides integration with a number of OCLC web services and APIs.
Integrates with:
WorldCat Metadata API, WorldCat Search API
Join the OCLC API Community
The Community Center is OCLC’s online forum connecting library peers to each other and to OCLC staff.  The API community offers a dedicated space for technologists to ask questions, make connections, get updates about OCLC APIs, and contribute ideas for future development.
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Build custom solutions for your library services
Identify operational improvement opportunities with OCLC APIs and big data solutions.
Discovery
ILS/LMS
Collection management
Management services
Metadata
Resource sharing/ILL
We’re on GitHub
Discover sample code and see how to use our APIs in a variety of programming languages.
Go to GitHub
Let’s build a relationship
We partner with libraries and organizations to enable turnkey solutions.
Learn about becoming a partner