The merchant account is the business agreement between any kind of merchant and a credit card processor that allows the merchant to accept credit or debit payment cards from a customer or client. The merchant account is subject to various terms and conditions.
UniPay Gateway: Open Source Payment Gateway
How to Choose the Best Payment Solution
How to Own a Payment Gateway
What is a Payment Gateway
What is Recurring Billing?
How Payments Work
What Should an Ideal Payment Platform for Investors Look Like?