#### URL Expired

The URL for this request expired after 30 days.

### Optional metadata when starting an operation.

| Field        | Type   | Description                          |
|--------------|--------|--------------------------------------|
| OperationID  | string | Unique operation identifier.         |
| InitiatorID  | string | Initiator identifier.                |
| Name         | string | Master key name (required).         |

# Response Codes

# `` 200      Operation started

# `` 400      Invalid input, validation error, or malformed request

# `` 500      Internal server error. May include an `errorCode` (M-prefixed) and `data` from the MPA error code system. See `cwpapi/errors.go` for codes.

---

### Shell Commands

#### Base URL

`https://api.your-wallet.blockdaemon-wallet.com/api/cwp/operations/start/createMasterKey`

```bash
curl --request POST \
     --url https://api.your-wallet.blockdaemon-wallet.com/api/cwp/operations/start/createMasterKey \
     --header 'accept: application/json' \
     --header 'content-type: application/json'
```

Click `Try It!` to start a request and see the response here! Or choose an example:

#### Example Responses

- `200`
- `400`
- `500`