An open price index.

Aggregated, attribution-clean, citable. Pulled from federal and community sources. Free for journalists, researchers, and AI assistants — no scraping, no anti-bot dance.

Updated daily3 sourcesODbL + public domain

Datasets

Series	Source	License	Cadence	Latest
U.S. retail gasoline (regular)	EIA	Public domain	Weekly	2026-04-21
U.S. retail diesel	EIA	Public domain	Weekly	2026-04-21
BLS CPI · staple item average price	BLS	Public domain	Monthly	2026-04-12
Open Prices · grocery community submissions	OFF	ODbL	Continuous	2026-04-25

Public API

Every series above is queryable. No key for read access. Rate-limited at 60 requests/min. Attribution required in derivative work.

GET /api/v1/series/eia.fuel.regular.us
{
  "series_id": "eia.fuel.regular.us",
  "unit": "USD/gal",
  "license": "public-domain",
  "attribution": "U.S. Energy Information Administration",
  "points": [
    { "date": "2026-04-07", "value": 3.49 },
    { "date": "2026-04-14", "value": 3.46 },
    { "date": "2026-04-21", "value": 3.42 }
  ]
}