When your business or product's main access to customers is online, the last thing you want is a stumbling block when it comes to accepting payments. Quick and easy is the name of the game as online shoppers are used to nothing less than instant purchases at the click of a button and the convenient option to use their credit cards. Plastiq is a credit card payment processing and service provider that allows merchants to easily accept credit card payments for their goods and services. The Plastiq API makes it possible for developers to integrate this functionality with other applications.