The PaySimple Java SDK by RetroCognition allows API communication with the purpose to implement payment and billing into web services and mobile applications. PaySimple is a service that accepts payments, manages customers, and makes appointments.
Fifteen APIs have been added to the ProgrammableWeb directory in categories including Payments, Statistics, and WebRTC. Highlights include the PrexView API for converting data to readable formats and the simple-to-implement TalkJS API for chat function. Here's a rundown of the latest additions.