PASAR API

🇺🇸 USAspending.gov ~ federal spending & awards

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Open REST API over every federal contract, grant and award; no key needed.

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Call it

curl 'https://api.usaspending.gov/api/v2/'

AI prompt

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

API: USAspending.gov ~ federal spending & awards
Provider: U.S. Treasury (Bureau of the Fiscal Service)
Endpoint: GET https://api.usaspending.gov/api/v2/
It returns JSON.

Source: U.S. Treasury (Bureau of the Fiscal Service) (https://api.usaspending.gov/)
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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