Library of Congress · Rate Limits

Loc Rate Limits

The Library of Congress enforces rate limits per service to ensure equitable access. Exceeding limits triggers a 1-hour block for loc.gov JSON API endpoints. The Congress.gov API returns HTTP 429 when the hourly limit is reached.

Loc Rate Limits is the rate-limit profile for Library of Congress on the APIs.io network.

The provider publishes no rate limits that could be read; the profile records that absence rather than inventing a ceiling.

Tagged areas include Library, Government, Congress, Legislative Data, and Digital Collections.

0 Limits
Method: generated.
Written by API Evangelist and not verified against a page the provider published. Treat every limit as unconfirmed until a dated transcription replaces it.
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Limits

Library of Congress publishes no rate limits that could be read; the profile records that absence rather than inventing a ceiling.
LibraryGovernmentCongressLegislative DataDigital CollectionsNewspapersMapsBibliographic RecordsHistorical Documents

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  • find_rate_limitsBrowse and filter every rate limit in the catalog.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
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This rate limit 
curl "https://apis.io/api/v1/rate-limits/loc-rate-limits"
All rate limits 
curl "https://apis.io/api/v1/rate-limits?limit=25"

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