What's the difference between Pro and API plan?

As i develop zoom in the windows enviroment, if i want to create an app using zoom, do i need an account with Pro or API plan? That is, how can i get the valid SDK key and secret from zoom in order to provide meeting functions to MFC/Winform app users?
Thanks.

Can anyone help me?
Thanks.

Sorry for the late reply.

Here is the technical forum and I have no idea about the sales rules. I can not give you an exactly answer.

Would you go to the following link to submit a new request? I am sure someone there will help.
https://support.zoom.us/hc/en-us/requests/new

Regards,
Wilmer

Thank you for the reply.

Closing as solved.

-Tommy