From their site: Wakoopa tracks what kind of software or games you use, and lets you create your own software profile. Use the Wakoopa API to access some of your data via XML. The following data is available: your most used software; your most recently used software; latest versions of your software; comments on your profile; reviews you've written; your contacts on Wakoopa; and teams you are a member of.
Click the "Track this API" button on any profile page and never miss an API update, new app, or breaking news for that API again.
There are no mashups, developers or code associated with this API yet.
Wakoopa Portal is built on this API: http://wakoopaportal.com