The Bioregistry is an open source, community curated registry, meta-registry, and compact identifier resolver. Here's what that means:

A collection of prefixes and metadata for ontologies, controlled vocabularies, and other semantic spaces. Some other well-known registries are the OBO Foundry,, and the OLS.
A collection of metadata about registries and mappings between their constituent prefixes. For example, ChEBI appears in all of the example registries from above. So far, the Bioregistry is the only metaregistry.
A tool for mapping compact URIs (CURIEs) of the form prefix:identifier to HTML and structured content providers. Some other well-known resolvers are and Name-To-Thing.
Open Source
Anyone can suggest improvements or make pull requests to update the underlying database, which is stored in JSON on GitHub where the community can engage in an open review process.
Governed by public, well-defined contribution guidelines, code of conduct, and project governance to promote the project's inclusivity and longevity.
Prefix and Compact Identifier Search
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Here's how to get started with the Bioregistry site: