getJSON and APIs

I am looking for further help on how to access API’s and getJSON . I am on the Random Quote Generator task, but am completely stuck as I am not sure how to get data from APIs, even after going over the previous lessons a few times more.

Any links and/or explanations as to how API’s work?

Searched the forums and found some resources I was looking for.
Disregard request, but thanks for reading!

Looking forward to learning more!