Library of Congress API

Digital collections.

Visit Library of Congress API Docs

More in Museums, Libraries & Archives

Europeana API

European cultural heritage images.

HathiTrust Bibliographic API

Digital library metadata.

DPLA API

Digital Public Library of America.

Metropolitan Museum Collection API

Met Museum open access.

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Category	Museums, Libraries & Archives
Authentication	No auth
Pricing	Free
Website	https://www.loc.gov/apis/
Docs	https://www.loc.gov/apis/json-and-yaml/
Last checked	2026-10-14
As JSON	/api/v1/directory/library-of-congress-api.json