No - the Cluster JMX support is it.
There are a couple of projects aimed at collecting data from Akka. Both are at very early stages at this point but the code could be a starting point for you.
- Eigengo Monitor - http://www.cakesolutions.net/teamblogs/2013/11/01/monitoring-akka/
- Kamon - http://kamon.io/
Both are using AspectJ to get the data out of Akka.
Typesafe Console is free to use in non-Production environments, if that works for you.