Microsoft OneNote is a notebook tool to take and organize notes. The OneNote service API allows developers to integrate and manipulate OneNote user data in their own applications on a variety of platforms and devices.
This code sample gives users examples of how to use OneNote API with Windows Store.
The 4sync SOAP API provides over 50 API functions like uploading and downloading files and deleting folders. The API gives access to 4sync's cloud synching, which is acknowledged to be among the least expensive deals available, featuring 15 gigabytes of free storage.
Handshake, sales order processing platform, offers the Handshake API that allows developers to integrate Handshake with third party applications and services. Handshake allows users to write, accept, and sync orders across any device or server running the Handshake platform. Additionally, Handshake supports barcode scanning for more streamlined order processing.