Node Red is pre-installed with the November 2015 Raspbian Jessie release. Node Red has information regarding the install here. These are some notes on how it is installed for sys admins.
Node Red is an exciting platform for wiring together the Internet of Things or any web services. The installation instructions are provided here but don’t forget to install Node.js and setup the startup/shutdown scripts. These steps also describe how to upload your own nodes for testing purposes.
The Raspberry Pi LXDE autostart configuration file can be in different places depending on the version of Raspbian you are running.