Get API Token from user

Hi everyone,
Recently I maintained an app that has integration with Qualtrics API. I saw that our code has a request to get a user's API token which has a format like this:
https://survey.qualtrics.com/WRAPI/ControlPanel/api.php?Request=getUserToken&User=test&Format=JSON&Version=2.0&Password=test&AutoGenerate=1
My questions are:
_Can we still retrieve API Token through username and password like that?
I read about the document about the old version APIs but cannot still that requests? Or is this request undocumented?
Site Intercept API DocumentationThank you so much!