Meet Hackey: a smart key switch that connects to your WiFi network and lets you automate things with the turn of a key. It works with Zapier and IFTTT and can send HTTP POST requests and receive HTTP GET requests. Only the key holder will be able to control things in your home. You can assign and trigger multiple actions on one Hackey.
Hackey simply helps you automate various tasks in your home. It has WiFi 802.11n support and a 5-color LED light. More information is available on Indiegogo.