Create, curate, and connect linked data entities to improve metadata visibility
OCLC Meridian® is an intuitive web application and set of APIs that allows libraries to create, curate, and connect linked data entities. Enrich your metadata by creating connections to existing values in MARC records and other datasets across the global information ecosystem.
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Improve library discoverability and relevance for users
Create WorldCat Entities™ linked data using Meridian to improve your library’s discovery, findability, and relevance across the web by integrating metadata where users search for information. Because WorldCat Entities data can be accessed in new ways by libraries, partners, and services across the web, important resources and knowledge collections are visible and useful in more online environments.
Integrate linked data management into your existing workflows
With Meridian, you don’t need to go “all in” at once. You can contribute in ways that make sense for your library or organization, without disruption to current workflows. Use the web application to create, curate, and connect WorldCat Entities data one at a time, or use the suite of APIs to easily convert and leverage existing metadata at scale.
Discover, emphasize, and analyze important relationships
A suite of WorldCat Entities APIs enables users to connect identifiers from disparate sources (such as ORCID, ISNI, VIAF, etc.), learn of changes to WorldCat Entities data, and retrieve subsets of related data from WorldCat Entities and WorldCat for use in local discovery applications.
Contribute to a scalable, sustainable network of linked data
Create linked data entities that can improve research, analysis, and discovery across diverse types of data.
Connect to any other library or nonlibrary dataset supported by linked data technology.
Integrate with existing MARC records and other datasets, systems, and services.
150+ million WorldCat Entities
400+ million WorldCat Entities URIs added to WorldCat MARC records
“Evolving library data into linked data frees the knowledge in library collections and connects it to the knowledge streams that inform our everyday lives—on the web, through smart devices, and using technologies like AI.”
Jeff Mixter
Senior Product Manager, Metadata and Digital Services, OCLC
Easily convert and leverage your existing metadata at scale with APIs
Developers can take advantage of a suite of WorldCat Entities APIs that provides different levels of programmatic access. APIs are backed by the latest privacy, security, and compliance standards—visit our Trust Center to learn how OCLC keeps your data safe.
Entity Connections API
Add-on
Retrieve subsets of related data for use in local discovery applications
Learn about OCLC’s linked data strategy
Linked data as the next evolution of library metadata
OCLC recognizes metadata and metadata expertise is more important than ever for the sharing of knowledge. Learn about our long-term strategy focusing on expertise, data, infrastructure, and tools.
The future of library cataloging
OCLC’s position paper on linked data explores why good metadata is more important than ever, breaking up information locked in MARC records and creating new connections.
Making an impact online
The shift toward linked data isn’t just a technology upgrade, but a long-term strategy for enhancing the findability and accessibility of library resources.
Why choose Meridian?
Meridian is a fundamental step forward in making linked data a reality for libraries.
- Integrate with MARC-based catalogs and other datasets within existing workflows
- Connect identifiers across disparate vocabularies and authorities like ORCID and VIAF
- Available globally as a stand-alone service or as an addition to your OCLC cataloging subscription
- Collaborate with a growing network of metadata professionals in the OCLC Community Center
Join the metadata evolution with Meridian
Start creating WorldCat Entities, descriptions, and connections today, and begin the transition to linked data at your pace. Wherever you are in your linked data journey, we’d like to hear from you.
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Upcoming events
Watch this space for upcoming Meridian events
On-demand events
20 November 2024