The CoAP protocol does exactly this and is designed for the exact kind of restricted requirements you specified. It uses similar concepts to Restful HTTP to mak

The CoAP protocol does exactly this and is designed for the exact kind of restricted requirements you specified. It uses similar concepts to Restful HTTP to make the transition easier, but uses a binary protocol instead. You can even get gateways between it and HTTP should you need to use that for some reason (client side JavaScript etc). http://en.wikipedia.org/wiki/Constrained_Application_Protocol http://en.wikipedia.org/wiki/Constrained_Application_Protoco...