After you have a system account, you can create api keys for it. There is currently no limits on the number of api keys per system account (which allows key rotation), but instead of creating one system account with multiple keys, we recommend creating different system accounts for different purposes.

To create an api key, press the view api keys button to see the current api keys. In this modal, you'll be able to create a new api key.
You can also give it a description.
! Remember to not share the api keys around, as they are quite powerful. !