Energy and utilities is a smaller vertical in the catalog — 113 providers — but it’s one of the most consequential, and one of the least API-mature. This is the band where the physical grid, the meter on your wall, and the public energy datasets all start exposing programmable surfaces, often for the first time. The catalog is a useful place to see how early it still is.
The bands
| Band | What it does | Providers on apis.io |
|---|---|---|
| Hardware & metering | Devices, meters, controls | Eaton (12 APIs), Itron (8) |
| Energy majors | Production and supply | Shell (10) |
| Public energy data | Government datasets | Dept. of Energy (6), NREL (5) |
| Utilities & retail energy | Bills, usage, clean energy | Arcadia (5), PECO (5), WEC Energy (5) |
What’s shifted recently
- Smart metering created a data surface. Companies like Itron and Eaton build the meters and controls, and increasingly expose the readings programmatically. Consumption data that used to live in a monthly paper bill is becoming a queryable API — the precondition for everything from demand response to home automation.
- Connected-account aggregators emerged. Arcadia and similar players do for utility accounts what open banking did for bank accounts: a single API over a fragmented landscape of regional utilities. That’s the structural move that makes clean-energy and billing apps possible.
- Public energy data caught up. NREL and the Department of Energy publish real datasets — solar resource, grid, efficiency — that underpin a generation of climate and energy-modeling tools.
Where to start
- The Energy and Utilities industry page ranks all 113 providers.
- For metering and hardware, trace Itron and Eaton.
- For public datasets, NREL and the Department of Energy anchor the open-data band.
The takeaway
Energy is the vertical where API maturity is still being built — the counts are lower, the contracts thinner, the standards younger. That’s exactly why it’s worth watching in the catalog: the structural moves that already transformed banking and commerce (aggregation, open data, programmable metering) are happening here now, in real time.