freeapis

Open Government, USA

United States Government Open Data

Authentication
No auth
HTTPS
Yes
CORS
Unknown
Category
Government
Documentation / URL
https://www.data.gov/

Overview

data.gov is the US government open data portal — a gateway to hundreds of dataset APIs (api.data.gov).

⚠️ Status (verified 2026-08): api.data.gov serves the gateway portal (404 on guessed paths — same as the Data.gov listing on this site). There’s no universal endpoint; each dataset API needs its own key.

What it provides

curl "https://api.data.gov/{specific-api}/v1/..." \
  -H "X-Api-Key: YOUR_KEY"

Notes

  • Register once at api.data.gov → per-API keys.
  • Example APIs: College Scorecard, NREL, FEC (listed on this site).

FAQ

Is data.gov free? Yes — free government data.

Why 404? The gateway has no universal endpoint (verified) — use a specific API.

What’s the auth style? Per-API keys (often X-Api-Key).

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