BluePay e-Check is a BluePay payment gateway.
BluePay Remote is a BluePay payment gateway.
Boleto is a payment gateway in WHMCS.
The CashU payment gateway module is available in WHMCS.
The CCAvenue API v2 payment gateway module is available in WHMCS.
The legacy CCAvenue module is available for accounts that use CC Avenue's older system.
ChronoPay was available through WHMCS 8.6.