Library of Congress · Pricing Plans

Loc Plans Pricing

The Library of Congress APIs are free public services provided by the US federal government. There are no paid tiers or commercial plans. The loc.gov JSON API and Chronicling America API require no authentication and are completely free. The Congress.gov API requires a free API key obtained via api.congress.gov/sign-up/.

Loc Plans Pricing is the pricing profile for Library of Congress on the APIs.io network.

It defines 3 plans, with named plans including loc.gov JSON API - Free Public Access, Chronicling America API - Free Public Access, Congress.gov API - Free API Key.

This profile was written by API Evangelist and has not been verified against a page the provider published; treat every figure as unconfirmed until a dated transcription replaces it.

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

3 Plans
Method: generated.
Written by API Evangelist and not verified against a page the provider published. Treat every figure as unconfirmed until a dated transcription replaces it.
View Source
LibraryGovernmentCongressLegislative DataDigital CollectionsNewspapersMapsBibliographic RecordsHistorical Documents

Plans

loc.gov JSON API - Free Public Access

No API key or authentication required. Open access to all Library of Congress digital collection endpoints. Intended for researchers, developers, and the general public.

Chronicling America API - Free Public Access

No API key or authentication required. Open access to historic American newspapers data.

Congress.gov API - Free API Key

Free API key required. Sign up at api.congress.gov/sign-up/ using a Data.gov account. Provides access to all legislative data on Congress.gov.

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