openapi: 3.2.0
info:
  title: Terna Public API
  version: '2026-09-23'
  description: 'GENERATED FROM DOCUMENTATION by API Evangelist on 2026-09-23: 10 operation(s) read from 35 public documentation page(s) (each operation names its page in x-source). This is not the provider''s published contract; Terna has published no machine-readable contract that the pipeline could find. Engine: local.'
  x-evidence-tiers:
    code-example: 40
    documentation: -30
    pages-with-code: 35
    pages-read: 35
  x-generated-from: documentation
  x-provenance: generated
  x-authored-by: API Evangelist
  x-generated: '2026-09-23'
  x-generator: generate-contract-from-docs.py
  x-engine: local
  x-sources:
  - https://developer.terna.it/docs/read/Access_Token
  - https://developer.terna.it/docs/read/How_to_make_a_request
  - https://developer.terna.it/docs/apis_catalog/market/Aste_FCR
  - https://developer.terna.it/docs/read/apis_catalog/load/Total
  - https://developer.terna.it/docs/read/apis_catalog/load/Market
  - https://developer.terna.it/docs/read/apis_catalog/market/Costs
  - https://developer.terna.it/docs/read/apis_catalog/market/Prices
  - https://developer.terna.it/docs/read/apis_catalog/load/Total_Load
  - https://developer.terna.it/docs/read/apis_catalog/market/Aste_FCR
  - https://developer.terna.it/docs/read/apis_catalog/market/Quantity
  - https://developer.terna.it/docs/read/apis_catalog/load/Market_Load
  - https://developer.terna.it/docs/read/apis_catalog/fees/Daily_Prices
  - https://developer.terna.it/docs/read/apis_catalog/generation/Hydric
  - https://developer.terna.it/docs/read/apis_catalog/fees/Monthly_Summary
  - https://developer.terna.it/docs/read/apis_catalog/fees/Zonal_Exchanges
  - https://developer.terna.it/docs/read/apis_catalog/load/Industry_Sector
  - https://developer.terna.it/docs/read/apis_catalog/load/PeakValley_Load
  - https://developer.terna.it/docs/read/apis_catalog/load/Services_Sector
  - https://developer.terna.it/docs/read/apis_catalog/market/Load_Forecast
  - https://developer.terna.it/docs/read/apis_catalog/market/Transit_Limits
  - https://developer.terna.it/docs/read/apis_catalog/market/Accepted_Offers
  - https://developer.terna.it/docs/read/apis_catalog/market/Transit_Margins
  - https://developer.terna.it/docs/read/apis_catalog/fees/Preliminary_Prices
  - https://developer.terna.it/docs/read/apis_catalog/market/Submitted_Offers
  - https://developer.terna.it/docs/apis_catalog/market/Forecast_Transit_Limits
  - https://developer.terna.it/docs/read/apis_catalog/generation/Energy_Balance
  - https://developer.terna.it/docs/read/apis_catalog/generation/Actual_Generation
  - https://developer.terna.it/docs/read/apis_catalog/generation/Generation_Plants
  - https://developer.terna.it/docs/read/apis_catalog/load/PeakValley_Load_Details
  - https://developer.terna.it/docs/read/apis_catalog/generation/Installed_Capacity
  - https://developer.terna.it/docs/read/apis_catalog/fees/Commercial_Balance_Prices
  - https://developer.terna.it/docs/read/apis_catalog/generation/Thermoelectric_Heat
  - https://developer.terna.it/docs/read/apis_catalog/load/Demand_coverage_by_source
  - https://developer.terna.it/docs/read/apis_catalog/load/electrical_energy_by_type
  - https://developer.terna.it/docs/read/apis_catalog/market/Forecast_Transit_Limits
servers:
- url: https://api.terna.it
security:
- apiKey: []
tags:
- name: Public API
paths:
  /public-api/access-token:
    get:
      operationId: get_public_api_access_token
      tags:
      - Public API
      summary: GET /public-api/access-token
      x-source: https://developer.terna.it/docs/read/How_to_make_a_request
      responses:
        '200':
          description: Success (status as documented)
      x-evidence:
        kind: code-example
        language: curl
        snippet: "curl --location 'https://api.terna.it/public-api/access-token'  --header 'Content-Type: application/x-www-form-urlencoded'  --data-urlencode 'grant_type=client_credentials'  --data-urlencode 'client_id=your_API_Key'  --data-urlencode 'client_secret=your_API_Secret'\n Calling our APIs \n JavaScript - Fetch \nvar myHeaders = new Headers();\nmyHeaders.append(\"Authorization\", \"Bearer n3fujtnubkgx48rhvcf7y"
    post:
      operationId: post_public_api_access_token
      tags:
      - Public API
      summary: POST /public-api/access-token
      x-source: https://developer.terna.it/docs/read/Access_Token
      responses:
        '201':
          description: Success (shape read from the example response on the page)
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PostPublicApiAccessTokenResponse'
      x-evidence:
        kind: code-example
        language: curl
        snippet: "curl -H \"Content-Type: application/x-www-form-urlencoded\" \"https://api.terna.it/public-api/access-token\" -X POST -d \"client_id=5d4rscEcpyxywu4jdoiWerhsl\" -d \"client_secret=Iy4c6tuErp\" -d \"grant_type=client_credentials\"\n Definition of the response structure \n Key Description \n access_token \n  Your new Access Token \n token_type \n  We use Bearer token \n expires_in \n The number of second before the to"
components:
  schemas:
    PostPublicApiAccessTokenResponse:
      type: object
      properties:
        access_token:
          type: string
        token_type:
          type: string
        expires_in:
          type: integer
  securitySchemes:
    apiKey:
      type: apiKey
      in: header
      name: Authorization