GAC currently supports third party Asset Integrations. The supported Assets available are Playmaker and uScript; which are both visual scripting asset plugins.
All of GAC's accessible API has a Playmaker Action to use.
Check out the video below that shows how to use in Playmaker.
Similar to Playmaker, all of GAC's accessible API has a uScript Node to use. 
More Third Party Asset Integrations coming soon. See the  RoadMap  page for more info.