Attach block volume

POST /api/v2/volumes/{id}/actions/attach

Attach a block storage volume to a Cloud VPS.

If the volume is already attached to a different VPS, this operation reassigns it: the volume is detached from its current VPS and attached to the requested one.

Check status and attachedVpsId on the volume first if you do not intend to move it.

Get volume {id} from GET /api/v2/volumes, and get vpsId from GET /api/v2/vps.

diskSlot is optional and defaults to scsi1; allowed slots are scsi1 through scsi6.

Cloud VPS Block Volumes

Authentication

Required API scopes: write:vmwrite:storage

Authenticate with an API key in the Authorization: Bearer <token> header.

Context

Related endpoints

POST /api/v2/volumes/{id}/actions/detach Detach block volume GET /api/v2/volumes/{id} Get block volume DELETE /api/v2/volumes/{id} Delete block volume

Path Parameters

id string required Example: vol_01hxa3b4c5d6e7f8g9h0j1k2m3

Public volume ID. Get it from GET /api/v2/volumes data[].id. Do not invent this value; use the exact ID returned by the referenced API response.

Headers

Authorization Bearer <token>

Accept application/json

Content-Type application/json

Body

required

application/json

vpsId string required · Example: vps_01hxa3b4c5d6e7f8g9h0j1k2m3

diskSlot string · enum · Example: scsi1

scsi1

scsi2

scsi3

scsi4

scsi5

scsi6

Responses

202 Attach operation queued. 1 field

operation object required

operation.status string · enum required · Example: queued

queued

pending

in_progress

operation.jobId string · nullable required · Example: job_01hxa3b4c5d6e7f8g9h0j1k2m3

Nullable: may be null when not applicable.

operation.pollUrl string · nullable required · Example: /api/jobs/job_01hxa3b4c5d6e7f8g9h0j1k2m3

Nullable: may be null when not applicable.

400 Invalid request: volume_already_attached when the volume is already attached to the requested VPS, or invalid_request for a malformed body, an invalid diskSlot, or a target that is not a Cloud VPS. 10 fields

type string · Example: https://developer.hostup.se/errors/invalid_request

title string · Example: Validation failed

status integer · Example: 400

detail string · Example: The request body failed validation.

code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on detail.

instance string · Example: /api/v2/orders

requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3

timestamp string · Example: 2026-04-27T12:34:56.000Z

errors array<object>

Field-level validation errors when code is invalid_request.

errors[].pointer string required · Example: /items/0/eppCode

errors[].detail string required · Example: `eppCode` is required for this transfer.

errors[].code string required · Example: missing_required

extensions object

401 Unauthorized. Authentication is required. 10 fields

type string · Example: https://developer.hostup.se/errors/invalid_request

title string · Example: Validation failed

status integer · Example: 400

detail string · Example: The request body failed validation.

code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on detail.

instance string · Example: /api/v2/orders

requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3

timestamp string · Example: 2026-04-27T12:34:56.000Z

errors array<object>

Field-level validation errors when code is invalid_request.

errors[].pointer string required · Example: /items/0/eppCode

errors[].detail string required · Example: `eppCode` is required for this transfer.

errors[].code string required · Example: missing_required

extensions object

403 You do not own the target VPS (forbidden). 10 fields

type string · Example: https://developer.hostup.se/errors/invalid_request

title string · Example: Validation failed

status integer · Example: 400

detail string · Example: The request body failed validation.

code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on detail.

instance string · Example: /api/v2/orders

requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3

timestamp string · Example: 2026-04-27T12:34:56.000Z

errors array<object>

Field-level validation errors when code is invalid_request.

errors[].pointer string required · Example: /items/0/eppCode

errors[].detail string required · Example: `eppCode` is required for this transfer.

errors[].code string required · Example: missing_required

extensions object

404 Not found: volume_not_found when the volume does not exist or does not belong to your account, or vps_not_found when the target VPS could not be found. 10 fields

type string · Example: https://developer.hostup.se/errors/invalid_request

title string · Example: Validation failed

status integer · Example: 400

detail string · Example: The request body failed validation.

code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on detail.

instance string · Example: /api/v2/orders

requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3

timestamp string · Example: 2026-04-27T12:34:56.000Z

errors array<object>

Field-level validation errors when code is invalid_request.

errors[].pointer string required · Example: /items/0/eppCode

errors[].detail string required · Example: `eppCode` is required for this transfer.

errors[].code string required · Example: missing_required

extensions object

409 Another operation on this volume is already in progress (volume_operation_in_progress). Retry after it finishes. 10 fields

type string · Example: https://developer.hostup.se/errors/invalid_request

title string · Example: Validation failed

status integer · Example: 400

detail string · Example: The request body failed validation.

code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on detail.

instance string · Example: /api/v2/orders

requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3

timestamp string · Example: 2026-04-27T12:34:56.000Z

errors array<object>

Field-level validation errors when code is invalid_request.

errors[].pointer string required · Example: /items/0/eppCode

errors[].detail string required · Example: `eppCode` is required for this transfer.

errors[].code string required · Example: missing_required

extensions object

429 Rate limited. Retry after the limit resets. 429 responses include Retry-After seconds plus X-RateLimit-* headers. 10 fields

type string · Example: https://developer.hostup.se/errors/invalid_request

title string · Example: Validation failed

status integer · Example: 400

detail string · Example: The request body failed validation.

code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on detail.

instance string · Example: /api/v2/orders

requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3

timestamp string · Example: 2026-04-27T12:34:56.000Z

errors array<object>

Field-level validation errors when code is invalid_request.

errors[].pointer string required · Example: /items/0/eppCode

errors[].detail string required · Example: `eppCode` is required for this transfer.

errors[].code string required · Example: missing_required

extensions object

500 Internal error. Retry later or contact support if the issue persists. 10 fields

type string · Example: https://developer.hostup.se/errors/invalid_request

title string · Example: Validation failed

status integer · Example: 400

detail string · Example: The request body failed validation.

code string · Example: invalid_request

Stable machine-readable code. Branch on this field, not on detail.

instance string · Example: /api/v2/orders

requestId string · Example: req_01hxa3b4c5d6e7f8g9h0j1k2m3

timestamp string · Example: 2026-04-27T12:34:56.000Z

errors array<object>

Field-level validation errors when code is invalid_request.

errors[].pointer string required · Example: /items/0/eppCode

errors[].detail string required · Example: `eppCode` is required for this transfer.

errors[].code string required · Example: missing_required

extensions object

POST https://cloud.hostup.se/api/v2/volumes/{id}/actions/attach

For AI assistants

View as Markdown

cURL

curl -X POST "https://cloud.hostup.se/api/v2/volumes/vol_01hxa3b4c5d6e7f8g9h0j1k2m3/actions/attach" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -d '{
    "vpsId": "vps_01hxa3b4c5d6e7f8g9h0j1k2m3",
    "diskSlot": "scsi1"
  }'

Response

{
  "operation": {
    "status": "queued",
    "jobId": "job_01hxa3b4c5d6e7f8g9h0j1k2m3",
    "pollUrl": "/api/jobs/job_01hxa3b4c5d6e7f8g9h0j1k2m3"
  }
}

{
  "type": "object",
  "properties": {
    "operation": {
      "type": "object",
      "properties": {
        "status": {
          "type": "string",
          "enum": [
            "queued",
            "pending",
            "in_progress"
          ]
        },
        "jobId": {
          "type": "string",
          "nullable": true
        },
        "pollUrl": {
          "type": "string",
          "nullable": true
        }
      }
    }
  }
}

Request Body Attach to VPS

{
  "vpsId": "vps_01hxa3b4c5d6e7f8g9h0j1k2m3",
  "diskSlot": "scsi1"
}