The catalog
Official US data, one key for everything
Every API below is included in every plan — the free tier too.
One X-Api-Key, the same base URL, the same error contract,
hard caps and no overage. Paid plans change one thing: your monthly volume.
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Macro
US economy
US Inflation API
Since 1913Monthly CPI for 11 categories with YoY/MoM computed like the BLS, plus the famous average prices: eggs, gasoline, milk, coffee.
GET/inflation/latest
Docs & live demoUS National Debt API
Since 1790The debt to the penny every business day since 1993, annual since 1790, and average interest rates by security class.
GET/debt/latest
Docs & live demoEnergy
US energy data
US Oil Prices API
WTI & BrentDaily WTI and Brent spot prices (USD per barrel) from the EIA, with full paginated history.
GET/oil/latest
Docs & live demoUS Natural Gas Price API
Since 1997Henry Hub spot (USD per MMBtu): daily since 1997 plus official weekly, monthly and annual aggregates.
GET/gas/latest
Docs & live demoUS Retail Fuel Prices API
Since 1990The weekly pump survey: gasoline and diesel (USD per gallon) for the US average, five PADD districts and California.
GET/fuel/latest
Docs & live demoUS Oil Inventories API
Since 1982Weekly petroleum stocks the market moves on: crude, Cushing, SPR, gasoline and distillates (MBBL).
GET/oil-inventories/latest
Docs & live demoUS Natural Gas Storage API
Since 2010The Thursday release that moves gas markets: working gas in BCF for the Lower 48 and every EIA region, weekly.
GET/gas-storage/latest
Docs & live demoUS Natural Gas Trade API
Since 1973LNG and pipeline imports/exports — including the Mexico and Canada bilaterals — plus average trade prices, monthly.
GET/gas-trade/latest
Docs & live demoUS Oil Production API
Since 1920Both official cadences: the weekly national estimate plus the monthly EIA-914 survey by state — US total back to 1920.
GET/oil-production/latest
Docs & live demoUS Crude Oil Imports API
Since 2009Who supplies America's crude: monthly import volumes by origin country and crude grade (EIA-814).
GET/oil-imports/latest
Docs & live demoUS Fuel Demand API
Since 1990The weekly demand proxy the market reads every Wednesday: EIA "products supplied" for seven product groups.
GET/fuel-demand/latest
Docs & live demoUS Refinery Utilization API
Since 1982How hard refineries are running: utilization, gross and crude inputs and capacity — weekly, US and by PADD.
GET/refinery/latest
Docs & live demoUS Nuclear Outages API
Since 2007The daily health of the US nuclear fleet: capacity, megawatts on outage and the outage percentage — no gaps.
GET/nuclear/latest
Docs & live demoUS Energy Forecasts API (STEO)
ForecastsThe official EIA Short-Term Energy Outlook: eleven headline series — WTI, Brent, Henry Hub, production and more.
GET/steo/latest
Docs & live demoHow the platform works
X-Api-Key header, same error codes everywhere.