In Quiubas we use two API keys basically, one of them is your main API Key and the other one is your API Secret, similar to your username and password. We use them to authorize the use of our API. how do you get them?.
That was easy, isn't it?
Warning : Please store them in a secure site, and don't share them!. In case you need it, you can regenerate both keys in your panel for security reasons, if you do this, your old api keys are not going to be useful anymore.