Adding playlists and API

A few hopefully easy questions.

I am trying to find written documentation.

I do not see any mention of API. Don’t I need that to display my playlist from Youtube (I just want to have my wordpress playlists look better using your plugin.)

If your program doesn’t use an API, how does it display a full playlist?

I am now adding my Videos to Youtube as playlists by topics. And then I hope this plugin will render them in an attractive way.

Thanks