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-productions.s3.amazonaws.com/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-productions.s3.amazonaws.com/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