Now you can download the Office 365 API Tools, which enable developers to integrate Office 365 services such as mail, calendar, contacts, files, users and groups into their applications. The best part is now it’s integrated with Office Developer Tools for Visual Studio 2013 - November 2014 Update.
Now with this, you can integrate your applications with Office 365 services such as mail, calendar, contacts, files and more. This extension will help register your application to consume Office 365 APIs, and will add the necessary NuGet libraries to get you up and running in no time.
Happy O365 Programming!!