Envato API help

Need help for ENVATO API

I want to get some analysis of one of my Item. So I want to use Envato API.

I want to use HTML,CSS,JS,Jquery for this. I saw the tutorial on https://build.envato.com/api/ but I don’t know anything about that type of codes.

Can anyone give me some tips for this. Any opinion will help me much for my project.

Thank you,