API Reference
The ISOview API is organized around five resource types, each providing forecast data at a different granularity.
Base URL: https://api.isoview.io/v1
Authentication
All requests require an API key passed as the X-API-Key header or api_key query parameter. See the Authentication guide for details on obtaining and managing your key.
Endpoint groups
Regions — Regional forecasts and actuals by ISO and metric
Forecasts and historical actuals for geographic areas within each ISO. Supports demand, wind, solar, outage, and population-weighted temperatures.
Endpoints: list, forecast, continuous, ensemble, actual, backcast, summary
Metrics: demand, wind, solar, outage, poptemp
Access: Core subscription. Backcast requires Enterprise.
Plants — Individual wind and solar facility forecasts
Hourly generation forecasts for 2,000+ individual wind and solar facilities. Represents theoretical generation potential based on weather — does not account for curtailments, transmission constraints, or maintenance outages.
Endpoints: list, forecast, continuous, backcast
Metrics: wind, solar, wind_icing, solar_snow
Access: Advanced subscription. Backcast requires Enterprise.
Cells — H3 cell-level forecasts
Forecasts disaggregated to H3 hexagonal cells. Each cell includes a GeoJSON geometry clipped to the ISO boundary, with selectable H3 resolution (2–5).
Endpoints: list, forecast, continuous, backcast
Metrics: demand, wind, solar
Access: Advanced subscription. Backcast requires Enterprise.
Gas — Natural gas price forecasts
Daily price forecasts for major U.S. gas trading hubs. Prices in $/MMBtu. Incorporates weather-driven demand, storage levels, and market fundamentals.
Endpoints: list, forecast, continuous, backcast
Access: Core subscription. Backcast requires Enterprise.
LMP — Locational Marginal Price forecasts
Electricity price forecasts for select pricing nodes and hubs.
Endpoints: list, forecast, continuous
Types: dalmp (day-ahead), rtlmp (real-time)
Access: Core subscription.
Versioning
The API is versioned using the v1 prefix. The current version is v1. Backward incompatible changes will be indicated by a major version bump.
