If you want to see all the meetings that you’ve scheduled, you can use the List Meetings API. When it comes to starting or joining a meeting, you can use the
What redirect URL are you referring to? Do you mean the OAuth Redirect URL? If so, this should be a URL that your app handles so that you are able to receive the code and complete the OAuth flow.
We don’t have an example of creating a countdown or any other PHP examples that would be helpful here. However, this example on consuming REST APIs with PHP might be helpful:
Let me know if you have any questions.