This bot is for managing the open-source authentication system KeyAuth
Watch the below video for setup, it is quite straight-forward as it utilizes slash commands.
You may selfhost the bot also https://github.com/KeyAuth/KeyAuth-Discord-Bot
If you're not selfhosting all of KeyAuth, you need to buy the KeyAuth seller plan to use on your application. However, you can test beforehand using the demo seller account in the #demo-accounts channel of the KeyAuth server