> For the complete documentation index, see [llms.txt](https://developers.aixchain.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers.aixchain.com/http-api/api-list/voting-and-srs/createwitness.md).

# CreateWitness

Apply to become a witness.\
**BODY PARAMS**\
`{`

**`owner_address`**` ``string`

**`url`**` ``string`

**`permission_id`**` ``int32 (Optional)`

**`visible`**` ``boolean (Optional)`

`}`

**Note:**   

* **owner address** is transaction creator address, in hex string format.
* **contract address** is the address of the contract to be modified, in hex string format.
* **visible:** whether the address is in base58check format.
* **permission\_id,** whether the address is in base58 format.

**Example:**

curl --request POST\
\--url <http://172.104.51.182:16667/wallet/createwitness>\
\--header 'Accept: application/json'\
\--header 'Content-Type: application/json'\
\--data ' { "owner\_address":"AFzFXoQCgUeoApjejKM9B46NgFGHXvUyKz", "url":"<http://test\\_create\\_witness>", "visible": true }

**Input:**&#x20;

`{`&#x20;

`"owner_address":"AFzFXoQCgUeoApjejKM9B46NgFGHXvUyKz",`&#x20;

`"url":"http://test_create_witness",`

&#x20;`"visible": true`&#x20;

`}`

**Response**:

`{`&#x20;

`"visible": true, "txID": "0206159482aaf083aaa18cf4e5016f604a0bf906fca7dfa99a79960858f4cec1", "raw_data": { "contract": [ { "parameter": { "value": { "owner_address": "AFzFXoQCgUeoApjejKM9B46NgFGHXvUyKz", "url": "http://test_create_witness" }, "type_url": "type.googleapis.com/protocol.WitnessCreateContract" }, "type": "WitnessCreateContract" } ], "ref_block_bytes": "d86c", "ref_block_hash": "e12a4c5acd1f6d9e", "expiration": 1640060721000, "timestamp": 1640060663276 }, "raw_data_hex": "0a02d86c2208e12a4c5acd1f6d9e40e8aef2d9dd2f5a6d080512690a32747970652e676f6f676c65617069732e636f6d2f70726f746f636f6c2e5769746e657373437265617465436f6e747261637412330a15414203485a535a4072c9fbfaaddfe2a010ad0bcdb0121a687474703a2f2f746573745f6372656174655f7769746e65737370ecebeed9dd2f"`&#x20;

`}`

\==> Continue you call **gettransactionsign** API then call **broadcasttransaction** API

We will the final result: The transaction created success on AIXChain network.

`{`&#x20;

`"result": true, "txid": "0206159482aaf083aaa18cf4e5016f604a0bf906fca7dfa99a79960858f4cec1"`&#x20;

`}`