Kamon (kamon.io) is a set of monitoring tools helping developers find and fix performance issues in microservices. It’s a perfect tool for Akka and Play Framework developers but it also works well with JVM.

Kamon helps with microservices monitoring by providing a complete toolkit: an open source Kamon Telemetry instrumentation library and Kamon APM product for visualisation, dashboarding, debugging, alerting and generally a better insight into what’s going on in and with micorservices. In the words of one of Kamon’s customers - Kamon gives developers ease of mind.

Their open-source instrumentation library is well known and received with Akka and Play developers globally. The best thing about Kamon Telemetry it’s very simple to start using, requires almost no coding and can be set-up in a matter of minutes. Developers can send Kamon Telemetry data to the visualization/dashboarding tool of their choice (most popular seem to be Prometheus and Zipkin).

Kamon APM’s major benefit is it comes with a built-in dashboard for the most important metrics to monitor, taking the pain of figuring out what to monitor and building your own dashboards for weeks out of the monitoring.

Programming language: Scala
License: GNU General Public License v3.0 or later
Latest version: v2.1.9

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Kamon is a set of tools for instrumenting applications running on the JVM. The best way to get started is to go to our official Get Started Page and start instrumenting your applications right away! There you will also find guides and reference documentation for the core APIs, instrumentation and reporting modules.

Importing the project into Intellij IDEA

This project has a library dependency on a subproject of itself (kamon-tapir). As a result of that, if you just clone this project and open it in IDEA, it will fail to import it. First, run sbt +kamon-tapir/publishLocal from the console, and then IDEA will be able to import the project.

Why is this necessary?

Among our instrumented libraries is Tapir, which is also the only library we instrument that does not have a scala 2.11 version. In order to be able to cross publish kamon-bundle to all scala versions, while excluding kamon-tapir from the 2.11 bundle, we had to define kamon-tapir as a library dependency of kamon-bundle (instead of as a subproject).


This software is licensed under the Apache 2 license, quoted below.

Copyright © 2013-2019 the kamon project https://kamon.io/

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at


Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

*Note that all licence references and agreements mentioned in the Kamon README section above are relevant to that project's source code only.