> ## Documentation Index
> Fetch the complete documentation index at: https://vastai-80aa3a82-auto-openapi-update-79df5d46.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# List Machine Maintenance Windows

> Returns active (non-cancelled, non-expired) maintenance windows for host-owned machines identified by the provided machine_ids.



## OpenAPI

````yaml /api-reference/openapi.yaml get /api/v0/machines/maintenances
openapi: 3.1.0
info:
  title: Vast.ai API
  description: >-
    Vast.ai REST API for managing GPU cloud instances, machine operations, and
    AI/ML workflows.


    ## AI Agent Quick-Start


    Install the CLI skill for your agent (Claude Code, Cursor, Windsurf, etc.):
      npx skills add vast-ai/vast-cli

    CLI reference:
    https://raw.githubusercontent.com/vast-ai/vast-cli/master/vastai/SKILL.md

    SDK reference:
    https://raw.githubusercontent.com/vast-ai/vast-cli/master/vastai_sdk/SKILL.md


    ## Auth

    All endpoints require `Authorization: Bearer $VAST_API_KEY`.

    Get your key at: https://cloud.vast.ai/manage-keys/


    ## Key Quirks

    - `gpu_ram` in CLI = GB; in REST API = MB (CLI auto-converts)

    - SSH keys must be registered BEFORE creating an instance (VM: no recovery;
    Docker: can add post-create)

    - `onstart` field is limited to 4048 characters -- gzip+base64 for longer
    scripts

    - `POST /api/v0/asks/{id}/` (create instance) returns `new_contract` as the
    instance ID, not `id`

    - Poll trap: if `actual_status` becomes `exited`, `unknown`, or `offline` it
    will never reach `running` -- destroy and retry
  version: 1.0.0
  contact:
    name: Vast.ai Support
    url: https://discord.gg/vast
servers:
  - url: https://console.vast.ai
    description: Production server
security:
  - BearerAuth: []
paths:
  /api/v0/machines/maintenances:
    get:
      tags:
        - Machines
      summary: List Machine Maintenance Windows
      description: >-
        Returns active (non-cancelled, non-expired) maintenance windows for
        host-owned machines identified by the provided machine_ids.
      responses:
        '200':
          description: >-
            Array of active maintenance window objects, each including end_time
            computed from start_time and duration_hours.
          content:
            application/json:
              schema:
                type: array
                items:
                  type: object
                  properties:
                    id:
                      type: integer
                      description: Maintenance record ID
                    machine_id:
                      type: integer
                      description: ID of the machine this maintenance applies to
                    start_time:
                      type: number
                      description: Unix timestamp when maintenance begins
                    duration_hours:
                      type: integer
                      description: Duration of the maintenance window in hours
                    maintenance_category:
                      type: string
                      description: >-
                        Category of maintenance (power, internet, disk, gpu,
                        software, other)
                    maintenance_reason:
                      type: string
                      description: Optional reason for maintenance
                    created_at:
                      type: number
                      description: Unix timestamp when the record was created
                    cancelled_at:
                      type: number
                      description: Unix timestamp when cancelled, or null if active
                    end_time:
                      type: number
                      description: >-
                        Computed unix timestamp when maintenance ends
                        (start_time + duration_hours * 3600)
              example:
                - id: 42
                  machine_id: 1001
                  start_time: 1750000000
                  duration_hours: 4
                  maintenance_category: power
                  maintenance_reason: null
                  created_at: 1749990000
                  cancelled_at: null
                  end_time: 1750014400
        '400':
          description: >-
            "machine_ids cannot be empty" when machine_ids param is missing or
            empty.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: >-
            "machine_ids (...) do not exist" when no machines are found, or
            "only include machine_ids that exist and are owned by you" when none
            of the given IDs are owned by the caller.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      security:
        - BearerAuth: []
components:
  schemas:
    Error:
      type: object
      properties:
        error:
          type: string
        msg:
          type: string
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: API key must be provided in the Authorization header

````