If you are on Windows, install for example Fiddler Classic (it's free, don't use Fiddler everywhere, it is not).
If you are not on Windows use some other HTTP proxy software, Google is your friend.
In case of Fiddler that might already be enough and it might be able to just intercept the calls and show them. If not, you can configure it as Proxy like documented in the Gradle docs and get the requests displayed then.