{"note":"Physical inputs to a data-center hour. `relevance` says what each one does to a GPU-hour: direct (billed inside it), driver (sets the direct input's price), buildout (capex, reaches the hour years later), context (macro, not a cost line). Per-series history: /api/v1/commodities?series={id}.","latest":[{"series":"electricity_us_avg","label":"Electricity, US city average","value":0.196,"unit":"$/kWh","day":"2026-08-01","change_30d_pct":-0.51,"change_1y_pct":3.16,"cadence":"monthly","origin":"U.S. Bureau of Labor Statistics","relevance":"direct","source":"https://fred.stlouisfed.org/graph/fredgraph.csv?id=APU000072610"},{"series":"natgas_henry_hub","label":"Natural gas, Henry Hub spot","value":2.81,"unit":"$/MMBtu","day":"2026-09-09","change_30d_pct":3.31,"change_1y_pct":-9.94,"cadence":"daily","origin":"U.S. Energy Information Administration","relevance":"driver","source":"https://fred.stlouisfed.org/graph/fredgraph.csv?id=DHHNGSP"},{"series":"oil_wti","label":"Crude oil, WTI","value":97.26,"unit":"$/bbl","day":"2026-09-09","change_30d_pct":16.12,"change_1y_pct":54.45,"cadence":"daily","origin":"U.S. Energy Information Administration","relevance":"context","source":"https://fred.stlouisfed.org/graph/fredgraph.csv?id=DCOILWTICO"},{"series":"oil_brent","label":"Crude oil, Brent","value":109.51,"unit":"$/bbl","day":"2026-09-09","change_30d_pct":18.08,"change_1y_pct":61.12,"cadence":"daily","origin":"U.S. Energy Information Administration","relevance":"context","source":"https://fred.stlouisfed.org/graph/fredgraph.csv?id=DCOILBRENTEU"},{"series":"copper","label":"Copper","value":13542.82087,"unit":"$/t","day":"2026-07-01","change_30d_pct":-0.07,"change_1y_pct":38.61,"cadence":"monthly","origin":"International Monetary Fund","relevance":"buildout","source":"https://fred.stlouisfed.org/graph/fredgraph.csv?id=PCOPPUSDM"},{"series":"aluminum","label":"Aluminium","value":3158.265,"unit":"$/t","day":"2026-07-01","change_30d_pct":-8.16,"change_1y_pct":21.17,"cadence":"monthly","origin":"International Monetary Fund","relevance":"buildout","source":"https://fred.stlouisfed.org/graph/fredgraph.csv?id=PALUMUSDM"}],"attribution":"Data: Price of Compute — priceofcompute.com"}