Energy Charts API Prices API

openapi: 3.2.0
info:
  title: Energy-Charts Prices API
  description: 'Timestamp Format Options


    When specifying timestamps, you can choose from the following three formats:


    ISO 8601 Format:


    This format includes the full date and time, with an optional timezone indicator. Examples:


    2026-01-01T17:00Z (UTC time)


    2026-01-01T18:00+01:00 (Local time offset by +01:00)


    Daily Format:


    This format specifies only the date. The start time is assumed to be at 00:00 on the specified date in the local timezone of the specified country or bidding zone (bzn). The end timestamp is interpreted as the last minute of the specified day in the same local timezone. Example:


    2026-01-01 (Starts at 00:00 and ends at 23:59 on January 1, 2026, local time)


    UNIX Timestamp:


    This format specifies the time as the number of seconds since the Unix Epoch (January 1st, 1970, at 00:00 UTC). Example:


    1767222000


    Default Behavior for Timestamps


    If an end timestamp is not explicitly provided, it is assumed to be the same as the start timestamp. For daily formats, this means that one full day will be returned. If also no start timestamp is provided, the current day in the local timezone is used. Timestamp Semantics in Responses


    All timestamps returned by the API mark the beginning of the period the value refers to. Single exception: /installed_power and /v2/installed_power, where the timestamp labels the reporting year or month and the value represents the installed power at the end of that period (or, with installation_decommission=true, the net change during the period). Rate Limiting


    Requests are limited per client IP and per endpoint (token bucket, so short bursts are allowed). The default is 2 requests per minute with a burst of 4; /signal allows 20 per minute (burst 40), /price 2 per minute (burst 2), and every /v2 endpoint inherits the limit of its v1 counterpart. In addition, the limits are adjusted dynamically to the current server load, so the effective limit can be lower during peak times. Exceeding a limit returns HTTP 429 with a Retry-After header giving the number of seconds to wait. Clients should honour that header instead of assuming fixed limits, and cache responses on their side. For higher limits (commercial access) please contact leonhard.gandhi@ise.fraunhofer.de. Discontinuation of endpoints


    Endpoint discontinuations will be preceded by an announcement at least six months in advance, indicated by setting the "deprecated" status to true. Data License


    Unless stated otherwise, the data provided by the Energy-Charts API is licensed under the CC BY 4.0 license. Proper attribution to Energy-Charts.info as the source is required. New in release v2.0 (2026-07-20)


    New machine-readable /v2/...'
  termsOfService: https://energy-charts.info/data-protection.html
  contact:
    name: Contact
    url: https://energy-charts.info/contact.html
  license:
    name: Publishing notes
    url: https://energy-charts.info/publishing-notes.html
  version: '2.0'
tags:
- name: Prices
  description: Query price values (legacy v1)
paths:
  /price:
    get:
      tags:
      - Prices
      summary: Day Ahead Price
      description: 'Returns the day-ahead spot market price for a specified bidding zone in EUR/MWh.


        Available bidding zones (bzn) are shown above.


        The data for the following bidding zones is licensed as CC BY 4.0 from Bundesnetzagentur | SMARD.de and is published without changes:


        AT (Austria)


        BE (Belgium)


        CH (Switzerland)


        CZ (Czech Republic)


        DE-LU (Germany, Luxembourg)


        DE-AT-LU (Germany, Austria, Luxembourg)


        DK1 (Denmark 1)


        DK2 (Denmark 2)


        FR (France)


        HU (Hungary)


        IT-North (Italy North)


        NL (Netherlands)


        NO2 (Norway 2)


        PL (Poland)


        SE4 (Sweden 4)


        SI (Slovenia)


        The data for the other bidding zones is for private and internal use only. The utilization of any data


        whether in its raw or derived form, for external or commercial purposes is expressly prohibited. Should you require licensing for market-related data, please direct your inquiries to the original data providers, including but not limited to EPEX SPOT SE.


        Response schema:


        ```json

        {

        "license_info": str,

        "unix_seconds": [int],

        "price": [float],

        "unit": str,

        "deprecated": bool

        }

        ```'
      operationId: day_ahead_price_price_get
      parameters:
      - name: bzn
        in: query
        required: false
        schema:
          type: string
          default: DE-LU
          title: Bzn
      - name: start
        in: query
        required: false
        schema:
          type: string
          default: ''
          title: Start
      - name: end
        in: query
        required: false
        schema:
          type: string
          default: ''
          title: End
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PriceModel'
        '404':
          description: No price data available for that bidding zone/time range
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
components:
  schemas:
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
            - type: string
            - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
      type: object
      required:
      - loc
      - msg
      - type
      title: ValidationError
    PriceModel:
      properties:
        license_info:
          type: string
          title: License Info
        unix_seconds:
          anyOf:
          - items:
              type: integer
            type: array
          - type: 'null'
          title: Unix Seconds
        price:
          anyOf:
          - items:
              anyOf:
              - type: number
              - type: 'null'
            type: array
          - type: 'null'
          title: Price
        unit:
          type: string
          title: Unit
        deprecated:
          type: boolean
          title: Deprecated
      type: object
      required:
      - license_info
      - unit
      - deprecated
      title: PriceModel
x-provenance:
  method: harvested
  publisher: Energy Charts API
  source: https://api.energy-charts.info/openapi.json
  note: split by refine-openapis from the provider's own published document, verified by fetch (openapi/_original/*.fetch.json);
    stamped by stamp-openapi-provenance.py (roadmap#793)