Hey @codanji , welcome and thanks for posting! Sorry about the blockage here!
Because requests work in Postman, I’d imagine this has to be an issue with the format of the HTTPS request being sent to the Zoom API.
The same access token works in Postman, but does not using this function? If you use this app to get a token, do your curl requests work? GitHub - zoom/server-to-server-oauth-token: Utility script to generate a Zoom Server-to-Server Oauth Token and copy to clipboard