git clone git://github.com/vertexclique/airvantage-api-nodejs.git
and get dependencies with npm install
npm install -g airvantage-api-nodejs
In clone directory you can do
node ./bin/airvantage-nodejs
or
npm start
It will serve from http://localhost:3000
If you get it through NPM use just
airvantage-api-nodejs
in command line
and it will serve from http://localhost:3000