Hurl.it was originally created by Chris Wanstranth and Leah Culver at the 2009 Rails Rumble. We (Twilio) just took over maintenance of the project because it has some obvious utility when testing URL callbacks and webhooks. We want to make some improvements to it, so if you have any ideas or suggestions, I'd love to hear them. You can post them here or create an issue on the current home of the project on Github: https://github.com/twilio/hurl
And you can follow @hurlit for updates