Forecast API reference
A small REST API on https://progrunners.com/api/v1/. JSON, or CSV with format=csv. Forecast endpoints need a key — part of the Professional plan.
Authentication
Send your key in the X-API-Key header (or key= in the query). Times are UTC in ISO 8601; prices in EUR/MWh (GB: GBP/MWh).
curl -H "X-API-Key: YOUR_KEY" "https://progrunners.com/api/v1/forecast?zone=DE-LU"
GET /v1/zones public
Zones with published prices and zones with a forecast.
GET /v1/prices public
Actual day-ahead prices from the ENTSO-E Transparency Platform: zone, start, end (YYYY-MM-DD, at most 366 days), optional format=csv.
curl "https://progrunners.com/api/v1/prices?zone=NL&start=2026-11-01&end=2026-11-07"
GET /v1/forecast key
The latest forecast for zone for tomorrow in 15-minute steps: time_utc, price_eur_mwh, p10, p90, day, actual.
GET /v1/schedule key
A charge/discharge plan for a battery from the latest forecast: zone, capacity_kwh, power_kw, efficiency.