This Amazon Product Advertising library in Node.js supports APA API and request signatures. The main benefit of this work could be the node wrapper that performs HTTP requests, process responses, and parses XML. Because it takes care of those operations, is not necessary to make signatures from scratch. Resources include installation, quick start, and API documentation.
Microsoft has announced that the Microsoft Payment Request API in Microsoft Edge is available in preview. The Microsoft Payment Request API can be used to simplify checkout and payments on the web (via Microsoft Edge browser) for Windows 10 PC and mobile users. The API connects to Microsoft Wallet.
Google has announced an open beta release of an all-new Admob API. Google is providing the API specifically for application providers using AdMob, the company’s platform for promoting and monetizing mobile applications. The API provides data that more accurately mirrors the AdMob user interface.