Can I add or delete Users without Creator panel

[Saddam]

I created more than 70 application for separate purpose. so If sometime I want to add one user it's take too much time for me. But if it is possible to  add/delete user by Appscript/Google Sheet/Automation or Other database, it is very good for me.

So, If someone have experience about it if tell me. I need your help as soon as you can.

Please help me.