The Signinghub API helps accomplish something that looks simple (see image below) but is tricky to do securely: digitally sign a document. The API, using REST-based web services with XML responses, makes its possible to incorporate digital signing into your application that is based on the Public Key Infrastructure.
Microsoft continued its expansion of its Graph API portfolio with multiple API announcements at its latest Build developer conference. Specific API announcements include updates to SharePoint, OneNote, Planner, and translator APIs. Additionally, new Insights APIs were announced.