> ## Documentation Index
> Fetch the complete documentation index at: https://vastai-80aa3a82-fix-google-validation-docs-404s.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# detach ssh-key

> Detaches an SSH key from a specified instance, removing SSH access for that key.

CLI Usage: `vastai detach <instance_id> <ssh_key_id>`



## OpenAPI

````yaml /api-reference/openapi.yaml delete /api/v0/instances/{id}/ssh/{ssh_key_id}/
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/instances/{id}/ssh/{ssh_key_id}/:
    delete:
      tags:
        - Instances
      summary: detach ssh-key
      description: >-
        Detaches an SSH key from a specified instance, removing SSH access for
        that key.


        CLI Usage: `vastai detach <instance_id> <ssh_key_id>`
      parameters:
        - name: id
          in: path
          required: true
          description: ID of the instance to detach the SSH key from
          schema:
            type: integer
            example: 99999
        - name: ssh_key_id
          in: path
          required: true
          description: >
            Numeric ID of the SSH key to detach. Obtainable via `show ssh-keys`
            command
          schema:
            type: integer
            example: 12345
      responses:
        '200':
          description: SSH key successfully detached
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: true
                  msg:
                    type: string
                    example: SSH key removed from instance.
        '400':
          description: Bad Request
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: false
                  error:
                    type: string
                    enum:
                      - invalid_request
                  msg:
                    type: string
                    example: Invalid request parameters
        '404':
          description: Instance or SSH key not found
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: false
                  error:
                    type: string
                    enum:
                      - no_such_instance
                      - no_such_ssh_key
                  msg:
                    type: string
                    example: Instance not found.
        '429':
          description: Too Many Requests
          content:
            application/json:
              schema:
                type: object
                properties:
                  detail:
                    type: string
                    example: API requests too frequent endpoint threshold=2.0
        '500':
          description: Internal Server Error
          content:
            application/json:
              schema:
                type: object
                properties:
                  success:
                    type: boolean
                    example: false
                  error:
                    type: string
                    example: delete_ssh_from_instance
                  msg:
                    type: string
                    example: Error deleting SSH key from instance
      security:
        - BearerAuth: []
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: API key must be provided in the Authorization header

````