API Network

Google In-App PaymentsThe Google In-App Payments API gives developers the ability to add an in app purchase flow allowing them to sell digital and virtual goods from within their app. The API uses a JSON Web Token (JWT) to represent the items that can be purchased. For buyers the service allows for purchases that require a minimum of clicks and lets them purchase across the web and mobile with a single secure account.Payments
IVA Video
Microsoft Azure Search Service
GroupDocs.Signature .Net