Develop login and password panel for a wordpress site and integrate with hotmart and cademi

Basically, we have a website developed in wordpress, which contains examples of application of an infoproduct methodology, and we will give the bonus website to those who buy the course, we have students on the hotmart platform, and we will also have students on the Cademí platform, and we need an access panel with login and password, and that the content in wordpress is only available to those who enter with this access, students need to receive this access according to the platform they are on, which are hotmart and cademí , both have api/webhook, so I would need to integrate this login and password panel with both. Our maximum deadline is 05/13. In the attachments we have prints of how the site is, it is very simple.