WorldCat Discovery Services

WorldCat Discovery helps you:

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Deliver a consolidated discovery experience

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Provide access to WorldCat

Student using computer in busy library

Connect to more than 2.9 billion content items in WorldCat and a content-neutral central index  

Man using smartphone

Support users where they are with mobile-ready views

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Integrate with other library services

Male student on computer

Gain local control to customize the user experience

Deliver a consolidated discovery experience

WorldCat Discovery provides single search box access to your electronic, physical and digital collections. Facets and objective, non-biased relevancy rankings retrieve the most relevant content from WorldCat and your local collections. Command-line search functionality and the ability to limit to individual databases support the needs of library staff and other expert searchers. Specialized staff views show a MARC record display, ILL request integration, OCLC numbers and holdings by symbol.

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Provide access to WorldCat

WorldCat is the world's most comprehensive library database and represents a global network of data about library collections and services. With more than 404 million records—more than half of which are for non-English content—WorldCat represents the collections of libraries worldwide and has particular strength in print materials.

Woman using WorldCat.org on tablet computer

Connect to more than 2.9 billion content items in WorldCat and a content-neutral central index

Using WorldCat Discovery ensures comprehensive resource coverage and content access for your users. The central index enables searching of 2,487 collections, representing 285 of the world's top publishers, such as ProQuest, EBSCO, Gale and Elsevier. Full text for more than 8+ million open-access content items from HathiTrust, OAIster and Google Books are available, along with 24 million e-books from Overdrive, ebrary, MyiLibrary and others to provide the broadest e-book coverage available to libraries. Searches retrieve relevant results that are not weighted to favor specific content sources.

Student using laptop in busy library

Support users where they are with mobile-ready views

Users benefit from a responsive design interface that automatically adjusts for desktops, tablets and mobile. Data enhancements, such as clustering similar editions and formats of a single work together, along with user-friendly features, such as cover art, Google Books previews, citations and the ability to export to RefWorks, EndNote and Zotero, mark and share items through temporary lists and email, help keep results sets manageable but still provide comprehensive views of what's available.

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Integrate with other library services

WorldCat Discovery integrates with interlibrary loan services such as WorldShare Interlibrary Loan, virtual reference services such as QuestionPoint, digital collection management software, campus research portals—even with alternate discovery services via the WorldCat Discovery API. CONTENTdm "quick start" software is included in your subscription. This way, you can create digital collections, integrate them into local search results via the WorldCat Digital Collection Gateway and make them visible for searchers worldwide to discover.

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Gain local control to customize the user experience

Your library receives a unique URL for WorldCat Discovery with an interface you customize with local branding, colors and logos. Or you can build your own interface, using the WorldCat Discovery API. Fifteen interface languages support searches in Czech, Dutch, English, French, German, Italian, Japanese, Korean, Maori, Portuguese, Simplified Chinese, Traditional Chinese, Swedish, Spanish and Thai. You configure the search interface to meet your needs knowing the IP-based system is stable and secure to protect sensitive patron records. Materials usage reports and statistics available through Google Analytics help provide insight into your users' evolving needs.


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WorldCat Discovery helps people easily find and get resources available at your library and in libraries worldwide through a single search of WorldCat and familiar, authoritative e-content collections. It also connects users to your collections via popular websites where people typically start their research.

Service availability

  • WorldCat Discovery service

    Available everywhere (features differ by locale)

Learn more

WorldCat Discovery brochure

Download the WorldCat Discovery brochure
Download the brochure (US Letter)
Download the brochure (A4)

Past and recorded events

15 November 2017

Expanding discovery and visibility of all your library’s collections: A demonstration of the WMS Discovery interface

12 October 2017

OCLC Contactdag 2017

See all WorldCat Discovery events »