Open Source

Axon products have different licenses and accept different kind of contributions

Axon Server Logo with title

AxonIQ Open Source License - Commercially licensed software
The Message router and event store. The code is public, and anyone can use the Axon Server for free. Although, contributions are taken as suggestions or starting points for new features.

Quick Summary

You can use freely this software but have certain conditions to follow.



Ability to use, copy / reproduce the work freely in unlimited quantities 

Commercial use

Ability to make use of the work for commercial purposes for a fee but cannot be sublicensed to others


Ability to distribute the work to third parties freely, in unlimited quantities


Hold Liable

Describes the right to charge the software owner or contributors for direct or indirect damages.

Use trademark

Describes the rigth to use the original licensor or contributors' names, trademarks or logos (i.e. for advertisement, promotion)


Ability to modify / combine the work with others and create derivatives


Ability to license the work, including possible modifications (without changing the licence if it is copyleft or share alike) 

Place warranty

Ability to place additional warranty, services or rights on the software licensed (without holding the software owner and other contributors liable for it)


Include Copyright

Describes whether the original copyright and attribution marks must be retained

Include Licence

Include the full text of the licence in the modified software.

Disclose source

The source code of distributed derivatives must be publicly available