[simplyinfinity]

There was an REST server that responded with just a json you specify for a particular url, but god i can't recall the name.

Tho, http://requestb.in/ is a superb tool as well as https://www.runscope.com if you need more power.

p.s. this one too : http://httpbin.org/

[bowerbird]

excellent! thanks!

-bowerbird