Eventbrite C# Client Library is a C# based web client for the Eventbrite API. It can be used for Windows App Store API, and any .Net 4.0 application. An API/Application key is required for initializing the client. With this Client Library, developers will be able to interact with the API in C#.
Today at the official opening of the APIcon 2014 conference, Uri Sarid CTO of MuleSoft (parent company of ProgrammableWeb), challenged developers to think more about the great API unknown than perhaps better-known issues that are well on their way to finding resolutions.
The Salsa Commons API is a REST and XML API that, as Salsa explains,
"At it's simplest, using the Salsa API may consist of just a form placed on an external website ... At it's most complex, you could use a Ruby library to authenticate, pull down information on recent supporters and events, validate that data, change it, and submit it back to the node, while generating and displaying counts of petition signers -- all through the API."