pluginGeek
API: Great API examplesRuby567EditDocs of great APIs to reference when building your own implementations.
bcx-api by 37signals
436May 17, 2013 14:38
API documentation and wrappers for the new Basecamphttp://basecamp.com
api-documentation by 500px
131February 25, 2013 23:02
This is the 500px API documentation. https://github.com/500px/api-documentation
Around the webAdd
No links yet, just add one :-D