Vanilla 1 is no longer supported or maintained. If you need a copy, you can get it here
json API application has been updated for V2
now that the final release is out, i've updated the json API application to work with the latest updates to the vanilla framework.
the goal is to enable json output for discussion/user data. it's very basic right now, but it's enough to create a UserVoice/getSatisfaction like integrated module for your website.http://vanillaforums.org/addon/542/api-json