Knet Payment Gateway extension allows you to accept credit card payments in Magento through KNET Payment Gateway. The extension redirects the user to KNET website for making actual payments with credit card. You must install an SSL certificate on your site otherwise KNET will reject the transaction.
Free Lifetime Support
SSL must be installed in the website for the knet payment gateway integration.
100% Open Source
Go to Stores → Configuration → Sales → Payment Methods → Knet Payment Click.