openapi: 3.1.0
info:
  title: Heroku Platform Account Dynos API
  description: The Heroku Platform API enables programmatic access to Heroku's deployment platform. Manage apps, dynos, add-ons, config vars, domains, pipelines, releases, and other platform resources.
  version: '3'
  contact:
    name: Heroku
    url: https://devcenter.heroku.com/
  license:
    name: Proprietary
    url: https://www.heroku.com/policy/tos
servers:
- url: https://api.heroku.com
  description: Heroku Platform API
security:
- BearerAuth: []
tags:
- name: Dynos
  description: Process (dyno) management
paths:
  /apps/{app_id_or_name}/dynos:
    get:
      operationId: listDynos
      summary: List dynos
      description: List existing dynos for an app.
      tags:
      - Dynos
      parameters:
      - $ref: '#/components/parameters/appIdOrName'
      responses:
        '200':
          description: List of dynos
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Dyno'
    post:
      operationId: createDyno
      summary: Create a dyno
      description: Create a new dyno (one-off or run command).
      tags:
      - Dynos
      parameters:
      - $ref: '#/components/parameters/appIdOrName'
      requestBody:
        required: true
        content:
          application/json:
            schema:
              type: object
              required:
              - command
              properties:
                command:
                  type: string
                  description: Command to run
                attach:
                  type: boolean
                env:
                  type: object
                  additionalProperties:
                    type: string
                force_no_tty:
                  type: boolean
                size:
                  type: string
                  description: Dyno size (eco, basic, standard-1x, etc.)
                time_to_live:
                  type: integer
                type:
                  type: string
                  enum:
                  - run
                  - shield
      responses:
        '201':
          description: Dyno created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Dyno'
  /apps/{app_id_or_name}/dynos/{dyno_id_or_name}:
    get:
      operationId: getDyno
      summary: Get dyno info
      tags:
      - Dynos
      parameters:
      - $ref: '#/components/parameters/appIdOrName'
      - name: dyno_id_or_name
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Dyno info
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Dyno'
  /apps/{app_id_or_name}/dynos/{dyno_id_or_name}/actions/stop:
    post:
      operationId: stopDyno
      summary: Stop a dyno
      tags:
      - Dynos
      parameters:
      - $ref: '#/components/parameters/appIdOrName'
      - name: dyno_id_or_name
        in: path
        required: true
        schema:
          type: string
      responses:
        '202':
          description: Dyno stop initiated
  /apps/{app_id_or_name}/dynos/actions/restart-all:
    post:
      operationId: restartAllDynos
      summary: Restart all dynos
      tags:
      - Dynos
      parameters:
      - $ref: '#/components/parameters/appIdOrName'
      responses:
        '202':
          description: Restart initiated
components:
  schemas:
    Dyno:
      type: object
      properties:
        id:
          type: string
          format: uuid
        name:
          type: string
        app:
          type: object
          properties:
            id:
              type: string
              format: uuid
            name:
              type: string
        attach_url:
          type: string
          nullable: true
        command:
          type: string
        created_at:
          type: string
          format: date-time
        release:
          type: object
          properties:
            id:
              type: string
              format: uuid
            version:
              type: integer
        size:
          type: string
        state:
          type: string
          enum:
          - crashed
          - down
          - idle
          - starting
          - up
        type:
          type: string
        updated_at:
          type: string
          format: date-time
  parameters:
    appIdOrName:
      name: app_id_or_name
      in: path
      required: true
      schema:
        type: string
      description: App ID (UUID) or app name
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Heroku API key or OAuth token