Braintree provides developers with both client and server Ruby SDKs for developers to use on their websites or mobile applications. The server SDKs lets developers integrate with Braintree, while the client SDK allows them to customize it into their applications.
With iZettle's new iOS API it is possible to include credit card payments in any IOS app. iZettle is a Swedish company known in locally as “Spotify for payments” and in the US as “the European Square”. Using their chip card reader and iOS app, small businesses and individuals can charge via VISA, Mastercard, American Express or Diners Club and the payment is finalized with the card holders signature written with the finger straight on the iOS screen. So far the payment service is available in Sweden, Norway, Denmark, Finland and is being tested in the UK. They just got a €25 million to roll out in more countries world wide.
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.