PASAR API

🇺🇸 Data.gov ~ US federal open-data catalog

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Catalog runs on CKAN, so dataset search/metadata via the Action API needs no key; some agency data services behind api.data.gov require a free api.data.gov key.

View docs ↗ More Government services APIs

Call it

curl 'https://catalog.data.gov/api/3/action/'

AI prompt

I'm building an app using a free United States API (no auth needed).

API: Data.gov ~ US federal open-data catalog
Provider: U.S. General Services Administration (GSA)
Endpoint: GET https://catalog.data.gov/api/3/action/
It returns JSON.

Source: U.S. General Services Administration (GSA) (https://data.gov/developers/apis/)
Source type: Official open-data catalogue
Endpoint type: Open-data catalogue JSON
Integration difficulty: Copy-paste ready
Last checked: 2026-07-05
Production caveat: Still handle empty rows, schema changes, pagination, stale coverage, and temporary upstream failures.

Help me fetch this and build a simple page that displays it nicely. Include basic production safeguards for errors, empty responses, schema changes, caching, and rate limits.

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