API keys with referer restrictions cannot be used with this API.
Isn’t there a way to include Make referrer into the list of allowed ones via Google Cloud as I did for other service that need access to the API key? I tried with *.make.*/ but it’s not working.
Welcome to the Make community!
You cannot use Referrer restrictions because Make runs in the SERVER, not WEB BROWSERS.
Only Web Browsers enforce Referrer restrictions, so it doesn’t make sense to have those.
You can use IP Restrictions instead.
For more information, see https://www.make.com/en/help/connections/allowing-connections-to-and-from-make-ip-addresses