Create Reaper custom action for searching/downloading within Soundsnap
Reaper is a very popular DAW with game sound designers, and also has a very powerful scripting environment for custom actions. It would be amazing if you created a Reaper custom action to search/select/download Soundsnap sounds directly into a Reaper project from within Reaper. It wouldn't be too hard. The hardest part would be exposing a couple of Rest APIs from your website.