openapi: 3.0.1
info:
  title: DataCrunch Public Balance Instances API
  description: Public REST API for DataCrunch, a European GPU cloud. The API lets you deploy and manage GPU/CPU instances, query instance types and real-time availability, manage OS images and startup scripts, SSH keys, block storage volumes, retrieve account balance, and deploy and operate serverless container deployments for inference. Authentication uses the OAuth 2.0 Client Credentials flow to obtain a short-lived Bearer access token.
  termsOfService: https://datacrunch.io/legal/terms-of-service
  contact:
    name: DataCrunch Support
    url: https://docs.datacrunch.io/
  version: '1.0'
servers:
- url: https://api.datacrunch.io/v1
security:
- bearerAuth: []
tags:
- name: Instances
paths:
  /instances:
    get:
      operationId: listInstances
      tags:
      - Instances
      summary: List instances
      description: Retrieve all instances, optionally filtered by status.
      parameters:
      - name: status
        in: query
        required: false
        schema:
          type: string
          example: running
      responses:
        '200':
          description: A list of instances.
          content:
            application/json:
              schema:
                type: array
                items:
                  $ref: '#/components/schemas/Instance'
        '401':
          $ref: '#/components/responses/Unauthorized'
    post:
      operationId: deployInstance
      tags:
      - Instances
      summary: Deploy a new instance
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/DeployInstanceRequest'
      responses:
        '202':
          description: Instance deployment accepted; returns the new instance id.
          content:
            application/json:
              schema:
                type: string
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
    put:
      operationId: instanceAction
      tags:
      - Instances
      summary: Perform an action on one or more instances
      description: Execute an action (boot, start, shutdown, hibernate, restore, delete, force_shutdown) against a single instance id or a list of instance ids.
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/InstanceActionRequest'
      responses:
        '202':
          description: Action accepted.
        '400':
          $ref: '#/components/responses/BadRequest'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /instances/{instance_id}:
    get:
      operationId: getInstance
      tags:
      - Instances
      summary: Get an instance by id
      parameters:
      - name: instance_id
        in: path
        required: true
        schema:
          type: string
      responses:
        '200':
          description: Instance details.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Instance'
        '404':
          $ref: '#/components/responses/NotFound'
components:
  schemas:
    InstanceActionRequest:
      type: object
      required:
      - id
      - action
      properties:
        id:
          oneOf:
          - type: string
          - type: array
            items:
              type: string
        action:
          type: string
          enum:
          - boot
          - start
          - shutdown
          - hibernate
          - restore
          - delete
          - force_shutdown
        volume_ids:
          type: array
          items:
            type: string
    DeployInstanceRequest:
      type: object
      required:
      - instance_type
      - image
      - ssh_key_ids
      properties:
        instance_type:
          type: string
          example: 1H100.80S.30V
        image:
          type: string
          description: OS image id or name.
        ssh_key_ids:
          type: array
          items:
            type: string
        hostname:
          type: string
        description:
          type: string
        location_code:
          type: string
          example: FIN-01
        startup_script_id:
          type: string
        is_spot:
          type: boolean
        os_volume:
          type: object
          properties:
            name:
              type: string
            size:
              type: integer
              description: Size in GB.
        existing_volumes:
          type: array
          items:
            type: string
    Instance:
      type: object
      properties:
        id:
          type: string
        instance_type:
          type: string
          example: 1H100.80S.30V
        status:
          type: string
          example: running
        hostname:
          type: string
        ip:
          type: string
        location_code:
          type: string
          example: FIN-01
        image:
          type: string
        ssh_key_ids:
          type: array
          items:
            type: string
        price_per_hour:
          type: number
          format: float
        created_at:
          type: string
          format: date-time
    Error:
      type: object
      properties:
        code:
          type: string
        message:
          type: string
  responses:
    BadRequest:
      description: Invalid request.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    Unauthorized:
      description: Missing or invalid access token.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
    NotFound:
      description: Resource not found.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/Error'
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      bearerFormat: JWT
      description: Bearer access token obtained from POST /oauth2/token via the OAuth 2.0 Client Credentials grant.