// Add within config/services.php return array:
'ictw' => ['server_url' => env('ICTW_SERVER_URL'), 'api_key' => env('ICTW_API_KEY')],

// Add to .env (never publish):
ICTW_SERVER_URL=https://pay.example.com
ICTW_API_KEY=YOUR_CLIENT_MERCHANT_KEY