This allows you to intercept most HTTP requests made by the game in order to inspect how the private webservices API works. You can copy each request's URL, headers, and even a curl command to let you run the request in your own shell.
More technical details on accessing webservices externally can be found here.
Note: Do not share your access token contained in the headers and curl commands - it is uniquely used to identify you!
Note 2: Currently, you must have the Club Edition to use this plugin. I might change it to Standard edition if there's demand for it.