Add VPS disk

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Attach a new non-root disk to a VPS by consuming already-purchased Attachable Block Storage. This endpoint does not buy storage capacity. Before calling, read GET /api/v2/vps/{id}/storage-quota: for regular VPS services, sizeGb must be less than or equal to attachable.availableGb. If there is not enough attachable capacity, first call GET /api/v2/vps/{id}/actions/upgrade, find configurableOptions[].key === "additionalStorageGb", then preview/commit POST /api/v2/vps/{id}/actions/config with resources.additionalStorageGb; re-read storage quota before retrying. Use the storageGb configurable option for main/root disk capacity, not this add-disk endpoint. Send sizeGb as a whole number from 1 to 1000. interface defaults to scsi; storage placement is selected by the server and must not be supplied by new integrations. After success, the API has attached a virtual disk only; the customer still needs to partition, format, and mount it inside the VPS operating system.

VPS Services VM

Authentication

Required API scopes: write:vmwrite:storage

Use Authorization: Bearer <token> for API keys. Dashboard sessions may also use hostup_session.

Context

Related endpoints

POST /api/v2/vps/{id}/actions/stop Stop VPS POST /api/v2/vps/{id}/actions/renew Renew VPS POST /api/v2/vps/{id}/actions/reset Reset VPS

Path Parameters

id string required Example: vps_01hxa3b4c5d6e7f8g9h0j1k2m3

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

Headers

Accept Example

Content-Type Example

Body

required

application/json

sizeGb integer required · Example: 100

interface string · Example: scsi

cache string · Example: none

Responses

200 Disk added.

disk object required

disk.id string required · Example: vpsdisk_01hxa3b4c5d6e7f8g9h0j1k2m3

disk.name string required · Example: scsi1

disk.sizeGb integer required · Example: 100

disk.interface string required · Example: scsi

400 Invalid request. The response body is an RFC 7807 Problem Details document.

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.

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 Forbidden. The caller lacks a required scope or does not own the resource.

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. The resource does not exist or is not owned by the caller.

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.

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.

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/vps/{id}/actions/add-disk

For AI assistants

View as Markdown

cURL

curl -X POST "https://cloud.hostup.se/api/v2/vps/vps_01hxa3b4c5d6e7f8g9h0j1k2m3/actions/add-disk" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Accept: application/json" \
  -H "Content-Type: application/json" \
  -d '{
    "sizeGb": 100,
    "interface": "scsi"
  }'

Response

{
  "disk": {
    "id": "vpsdisk_01hxa3b4c5d6e7f8g9h0j1k2m3",
    "name": "scsi1",
    "sizeGb": 100,
    "interface": "scsi"
  }
}

{
  "type": "object",
  "properties": {
    "disk": {
      "type": "object",
      "properties": {
        "id": {
          "type": "string"
        },
        "name": {
          "type": "string"
        },
        "sizeGb": {
          "type": "integer"
        },
        "interface": {
          "type": "string"
        }
      }
    }
  }
}

Request Body Add 100 GB disk

{
  "sizeGb": 100,
  "interface": "scsi"
}