curl -X POST "https://server.smartlead.ai/api/v1/client/api-key?api_key=YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"clientId": 301, "keyName": "Production Key"}'

{
  "ok": true,
  "data": {
    "id": 45,
    "client_id": 301,
    "key_name": "Production Key",
    "api_key": "cl_live_xxxxxxxxxxxxxxxx",
    "status": "active",
    "created_at": "2025-12-01T10:00:00.000Z"
  }
}

{
  "message": "Invalid API Key"
}