We value Open Source and make a point to release all our plugins on GitHub under a BSD License.
Click Help → Flash Builder Marketplace… then search for wakatime.
Help → Flash Builder Marketplace…
Navigate to File → WakaTime → API Key and enter your API Key, then click OK.
File → WakaTime → API Key
Use Flash Builder and your coding activity will be displayed on your WakaTime Dashboard.
Add WakaTime to your Flash Builder as a new Update Site:
Select Help → Install New Software…, then enter this url and hit Enter:
Help → Install New Software…
Check the WakaTime package, then click Next and proceed with the wizard to install the plugin.