Convergepay payment gateway for Opencart is an Payment extension for  Opencart's site. You can see more convergepay at url https://www.convergepay.com/converge-webapp/

Virtual Merchant has been added to the already wide array of payment methods that clients can use to make their reservations. This is just one of the several payment methods that are already available to guarantee that you never lose a client just because they couldn’t use their preferred 

New: update Code Opencart 4.0.2.1 Version 1.0

Features

• fully Ajax  credit Card/ debit cart when checkout
• XML processing
• working with Live / Demo API Credentials
• Nicely form input credit cart
• Support input name when input cart
• Pre Luhn algorithm check card before sending to payment gateway 
  

Virtual Merchant payment gateway features:

Accept a full range of payment methods:

• Credit cards
• Debit cards
• Electronic checks
• Electronic gift cards
• Electronic benefit transfer (EBT)
• Cash

Advanced features include:

• Available enhanced security features, including EMV, encryption and tokenization
• Detailed reporting with up to 12 months of data storage
• Customizable payment screens
• User permission management for up to 5,000 users

Test Credit Card Account Numbers

https://developer.elavon.com/docs/converge/1.0.0/test-cards