aWATTar

name: aWATTar
description: aWATTar provides a free, public REST API delivering real-time and next-day hourly electricity spot prices sourced
  from the EPEX Spot market exchange for both Austria and Germany. The API enables developers, smart home integrators, and
  commercial operators to build dynamic energy pricing applications that respond to market conditions. Prices are updated
  daily at 14:00 CET covering the following day, and the API returns JSON data including start/end timestamps and market price
  per MWh. No authentication token is required, making integration straightforward for any developer. The service is offered
  free of charge under a fair-use policy of 100 requests per day per client, supporting use cases such as EV charging optimization,
  smart heating control, and automated energy management systems.
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/awattar/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
- Electricity
- Energy
- Spot Price
- EPEX Spot
- Dynamic Pricing
- Austria
- Germany
- Smart Energy
- IoT
apis:
- name: aWATTar Market Data API
  description: 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).
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.awattar.at/services/api
  baseURL: https://api.awattar.at
  tags:
  - Electricity
  - Market Price
  - EPEX Spot
  - Austria
  - Germany
  properties:
  - type: Documentation
    url: https://www.awattar.at/services/api
  - type: OpenAPI
    url: https://raw.githubusercontent.com/api-evangelist/awattar/refs/heads/main/openapi.yml
common:
- type: Website
  url: https://www.awattar.at
- type: Documentation
  url: https://www.awattar.at/services/api
- type: GitHubOrg
  url: https://github.com/awattarenergy
- type: LinkedIn
  url: https://www.linkedin.com/company/awattar
- type: Blog
  url: https://www.awattar.at/blog
- type: Pricing
  url: https://www.awattar.at/tariffs/hourly
- type: Plans
  url: plans/awattar-plans-pricing.yml
- type: RateLimits
  url: rate-limits/awattar-rate-limits.yml
- type: FinOps
  url: finops/awattar-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com