Free public API
Everything on this site is available as static JSON — free, no key, CORS-enabled, cached at the edge. Attribution appreciated but not required (the underlying government data is public domain; tax data is via the Tax Foundation). Please don't hammer it — it's a static file.
Endpoints
GET /api/v1/states.json | All 51 states with every metric + the source registry. |
GET /api/v1/states/{postal}.json | One state (lowercase, e.g. /api/v1/states/ca.json). |
GET /api/v1/sources.json | The source registry alone (datasets, vintages, URLs). |
Example
curl https://statenumbers.com/api/v1/states/al.json
Shape
Each state carries rpp (price parity by component), unemployment,housing (ACS), and taxes (manually maintained). Missing values arenull — never estimated. Every dataset in sources states its vintage, release, and whether it is API-sourced or manually maintained.