Government — entry 083 of 90

Open Government, USA

Verified Jul 2026

Data.gov is the US federal government's browsable open-data catalogue, distinct from the `Data.gov` API-gateway entry elsewhere in this list (whose real host is `api.data.gov` and which fronts unrelated agency APIs like NASA and the FEC). As of a November 2025 relaunch the old CKAN backend was retired: a keyless GET against the new `catalog.data.gov/search` endpoint returned live dataset JSON with full DCAT metadata, while the legacy CKAN-style metadata API is still reachable read-only, but now key-gated, through the same api.data.gov gateway (`api.gsa.gov/technology/datagov/v3/`) used by that sibling entry. Neither the new search endpoint nor the legacy gateway sends an `Access-Control-Allow-Origin` header.