Nodejs Backend is running on http://18.191.207.249:3033
Golang Backend is running on http://18.191.207.249:3000
Erlang Backend is running on http://18.191.207.249:8000
Java Backend is running on http://18.191.207.249:8080

HyperLeger Fabric
You can see api lists on https://greenbay-network-rest-insightful-bat.mybluemix.net/explorer/ (bluemix composer rest server)