I started working on a prototype application that uses Zoom meetings API. The aim of the application is to help students to find appropriate teacher for solving a given problem. The idea is to keep all the functions like searching a teacher, browsing teachers’ calendars, booking lessons and providing the lessons with audio and video in one application. I have developed the application consisting of Front-End and Back-End that implements all mentioned functions as well as it appoints Zoom meetings. The meetings are being appointed for a student and a teacher using my Zoom account. Technically, Zoom meeting API functions were called from Back-End using my JWT Token (a kind of server-to-server integration). I know that JWT Token form of authentication is not supported any longer so I have to make the required changes to my app. Furthermore, at this moment the application is only a proof of concept for my own use but I would like to make it available for other people so they can benefit from the functionality offered by my app. I suspect that for such a use the account-level app is not possible as it uses only one account. Could you advise my what solution should I choose. Should I use Server-to-Server OAuth app or user-level OAuth app or any other ? Do I need a license ? If so, what kind of license do I need ? What are the prices for each of technically possible solutions (licenses) ?