The Stripe .NET Library by ServiceStack is a project that contains a Portable Class Library with a typed .NET client gateway for accessing Stripe's REST API. Used by servicestack.net to process merhcant payments and recurring subcriptions online. Features include: Small, typed, message-based API with DTO's and fits in a StripeGateway.cs; portable profile available supporting .NET 4.5, Xamarin.iOS, Xamarin.Android and Windows Store clients; custom declarative DTO's defined within the app to access new APIs, and aims to implement the mockable IRestGateway, which allows developers to return test data with a generic MockRestGateway.
This week Google announced support of three new APIs in it's upcoming beta release of Chrome 61. These APIs, integrated from existing W3C standards, include the Payment Request API for making payment checkouts easier, the Web Share API for implementing native sharing capabilities and the WebUSB API.
Veem (formerly Align Commerce) has launched its Multi-Rail API which allows applications to send international payments via modern block-chain technologies, treasury, and third-party payment processors. The Veem platform uses multi-rail payment technology including blockchain electronic rail.