Is it possible in any capacity (short of opening a support case) to view webhook responses? I notice it's possible to do GETs with webhooks but this would not seem to have any value if I'm not able to view the responses from the API call. Thanks for the help.
Webhooks were designed to be a "one-way" call into outside systems. If you want the ability to make API calls and process the response, you'll need to work with an integration platform (Zapier or Workato) or a QSP to make that happen.
This is something we might implement in Automations but isn't in our short-term plan. If it's something that would be valuable to you, I recommend that you vote on it over at UserVoice.