# Start signing in

> Begins a device sign-in.

<div class="g1t-endpoint"><span class="g1t-method" data-method="post">POST</span><code>/device/code</code></div>

Show the person `verification_uri_complete` and have them open it in a browser, where they sign in or register and approve the code. Then poll `/device/token`.

- **Authentication:** None.
- **MCP tool:** None. Signing in is on the REST API only.

## Body parameters

Send a JSON object. Names are `snake_case`, as in responses; the `camelCase` spelling is accepted too.

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `client_name` | string | No | What is asking, shown to the person approving. For example, Claude Code. |

## Example request

```sh
curl -X POST https://api.g1t.sh/device/code \
  -H "Content-Type: application/json" \
  -d '{
    "client_name": "Claude Code"
  }'
```

## Example response

A successful request answers `200` with:

```json
{
  "device_code": "Gm3k…",
  "user_code": "WDJB-MJHT",
  "verification_uri": "https://g1t.sh/device",
  "verification_uri_complete": "https://g1t.sh/device?code=WDJB-MJHT",
  "expires_in": 900,
  "interval": 5
}
```