Hey @cgeo13,
Using the Zoom Web Client, you can set a default name and password to join the meeting. This isn’t logging in the user to Zoom, but it is allowing them to join your meeting:
Add the &pwd={password}
query param to the url like this:
https://zoom.us/wc/{MeetingID}/join?prefer=1&un={Base64EncodedUsername}&pwd={password}
Or you can implement OAuth which logs in the user to their Zoom account, and then direct them to the meeting url which opens the Zoom App.
There is also a setting which only allows logged in Zoom users with certain email names to join your meeting.
Let me know if that helps!
Thanks,
Tommy