squarecloud squarecloud auth login
You will be prompted to enter your API key.
Insert your square cloud api token
Your API Token:
> Insert your square cloud api token
Output
Your API Token has successfuly changed! You are now logged in a <username>
With great power comes great responsibility!
Tip: You can skip the prompt by passing your API key with the --token flag: 
squarecloud auth login --token=<API key>