Write some software

I need you to develop some software for me. I would like this software to be developed for Mac . I need a discord bot that I can use as a security system for my server. When customers purchase a membership to my server I want to email them a randomly generated key, as well as an invite to the server, once they join They won’t have access to anything besides one channel that lets them know how to activate their membership using the key, from there I want them to send an activation bot their key which will assign them the member role