The PaySimple Go SDK by Aaron O. Ellis allows to interact with API data to integrate payments and billing features into applications. Available tests to work with account, authorization, customer, and payment.
Apple this week made the Payment Request API available for Apple Pay. The W3C-developed API works in Safari 11.1 on MacOS and Safari on iOS 11.3, allowing merchants and retailers to conduct transactions through Apple Pay, rather than alternatives such as credit/debt cards or PayPal.
The W3C Web Payments Working Group announced that the Payment Request API is now being implemented in all major browsers including Chrome, Edge, Firefox, and WebKit. The Group also announced that the Payment Request API and Payment Method Identifiers have advanced to Candidate Recommendation Status.