Hi @akona,
Thanks for reaching out!
You can authenticate the download_url with either a JWT token or OAuth token from your account. If you wish to authenticate via an OAuth token, you’ll need to request an access token for the account by following the steps outlined here:
https://marketplace.zoom.us/docs/guides/auth/oauth
You can also use a JWT token from the account the recording belongs to—you can find instructions for generating a JWT token here:
Once you have a token, you can append it to the download URL as a query parameter:
?access_token={token}
Let me know if this helps—thanks!
Will