Import Data from API

Hi Guys! I decided to give it a try and use your software. I am too far away from programming, but your app is handy. I am struggling to import data from API. I want to import cryptocurrencies, and one of the best sources is, they also have free API. I have subscribed and got the API key. Unfortunately, I do not know how to import it to the Exploratory app as a data because they require an API key to enter before each request. Here is the website with the description,, I feel the best is REST API. I know it is too much to ask, but I would appreciate if you can give me advice how to do that in your app. Thank you!