Kamon is a Open Source set of tools that help you to get metrics out of your reactive applications built on top of Akka, Spray and Play! Kamon uses bytecode instrumentation to introduce metrics and tracing logic into your application, without you having to modify a single line of code. All the collected information is available through a simple, actor-based messaging protocol with integrations already available out of the box. See our getting started section and learn how to monitor your apps right away!


We need your help! Our site is under construction, if you came here looking for info and couldn't find what you are looking for please drop us a line on the mailing list, raise a issue on github or just let us know at twitter, we are here to help! Hopefully next time you come there will be more info here :D.

Akka actors metrics and tracing

Be prepared to get metrics of:

  • Message processing times
  • Time waiting in mailbox
  • Mailbox sizes
  • Message flow tracing
  • Dispatchers health

Tell me more »

Spray server/client tracing

Kamon already understands when a request starts and ends in a Spray application, you will get:

  • Processing time for incoming requests
  • spray-client request metrics
  • Automatic trace token propagation

Tell me more »

StatsD Reporting

StatsD is everywhere, let your metrics data be everywhere too:

  • Actor Metrics
  • Trace Metrics
  • User Metrics

Tell me more »