Classify was discontinued on 31 January 2024

OCLC® Cataloging and Metadata subscribers can use WorldShare® Record Manager or the WorldCat® Metadata API, available as part of the subscription, to perform similar searches to find classification numbers. 

Explore alternatives included with the OCLC Cataloging and Metadata Subscription

WorldShare Record Manager

You can use WorldShare Record Manager to find classification numbers in bibliographic records in WorldCat.

Learn more

WorldCat Metadata API 2.0

You can use the WorldCat Metadata API 2.0 to identify the most popular Library of Congress and Dewey classification numbers for a given OCLC Number.

Current users of the WorldCat Metadata API 1.x are encouraged to upgrade to version 2.0 now.

Learn more

WorldCat records enriched with Dewey classification numbers

OCLC recently completed a project which added Dewey classification numbers to more than 84 million WorldCat records. This enrichment saves time and increases efficiency for catalogers by providing Dewey classifications within existing cataloging workflows.

Don't have a subscription?

OCLC Cataloging and Metadata Subscription

Benefit from the ongoing work and expertise of OCLC and member libraries worldwide that continue to collectively create, enhance, and share quality records found in WorldCat. 

The OCLC Cataloging and Metadata Subscription allows libraries to:

  • Save time with streamlined cataloging  
  • Experience the power of cooperative cataloging  
  • Improve cataloging efficiencies while reducing costs  
  • Increase visibility to their resources in more ways 

Learn more