Authorize.Net is a United States-based payment gateway service provider, allowing merchants to accept credit card and electronic check payments through their website and over an Internet Protocol (IP) connection. Founded in 1996, Authorize.Net is now a subsidiary of Visa Inc. Its service permits customers to enter credit card and shipping information directly onto a web page, in contrast to some alternatives that require the customer to sign up for a payment service before performing a transaction.

Authorize.Net is the Internet’s most widely used payment gateway. With a user base of over 300,000 merchants, Authorize.Net has been the go-to method for e-commerce sites that need a gateway to accepting payments. Widely used e-commerce platforms such as Magento, Volusion and X-Cart are designed to accept payments using Authorize.Net easier.

Pricing: Authorize.Net has a $99 setup fee, costs $20 per month and takes a $0.10 per-transaction fee. Source: Authorize.Net pricing