With MLD you can turn your existing munin based infrastructure into a realtime monitoring solution. The MLD connects to munin-nodes and converts munin graphs to json objects, if a frontend requests a mld object the values are served from memory by a embedded webserver while mld keeps polling the munin-node in the background as long frontend-requests are being made.

Implement your own frontend or use the shipped example frontend, which can be used out of the box and comes with user management based on munin groups exported by the server. MLD can be queried with all popular programming languages or javascript itself and supports CORS.

You can install MLD and the frontend on any CentOS based machine with the supplied RPMs or do a easy self-install on any other distribution.