# Refresh Token

Obtain a new JWT token using a refresh token.

**Endpoint**: `POST /api/auth/refresh`
**Auth**: Not required (uses refresh token)
**Content-Type**: `application/json`

## Request Body

| Field | Type | Required | Description |
|--------|------|-----------|-------------|
| refresh_token | string | Yes | Valid refresh token |

### Example Request

```json
{
  "refresh_token": "d4f5g6h7..."
}
```

## Response (200 OK)

```json
{
  "token": "new-jwt-token",
  "refresh_token": "new-refresh-token"
}
```

## Error Responses

| Code | Description |
|------|-------------|
| 401 | Invalid or expired refresh token |
| 400 | Missing refresh token |

## Try It Out

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