aWATTar

aWATTar Market Data API

RESTful API providing hourly EPEX Spot electricity market prices for Austria and Germany. Returns JSON data with start/end timestamps and market price in EUR/MWh. Supports optional start and end parameters (epoch milliseconds) to filter the time range. No authentication required. Updated daily at 14:00 CET for the next 24 hours. Available for both Austria (api.awattar.at) and Germany (api.awattar.de).

GitHub OpenAPI

Documentation

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Documentation
https://www.awattar.at/services/api

Specifications

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OpenAPI
https://raw.githubusercontent.com/api-evangelist/awattar/refs/heads/main/openapi.yml

OpenAPI Specification

openapi.yml Raw ↑