First of all login to the Zoom App Marketplace with your Zoom account, If you dont have an account yet please signup here.
Click on Develop -> Build app after signing in to Zoom marketplace and after that click on “create” under JWT
Give any name to your JWT app
You will now be redirected to the App detail page once you click create on step3. Fill the required details on this page i.e Company name, developer name, and email address.
Once you fill in the details on step4 and press continue you will be redirected to the App credentials section, here copy the API key and API secret key using the copy link and paste these values inside the fields on the Partnership Application page.
How to get Zoom API Keys