@iamtheghost have you checked this: https://www.mysensors.org/controller
What about this
http://mycontroller.org/

@strangeoptics I've created a simple python file just to connect to an ethernet MySensors gateway and monitor all output:
https://github.com/dirkclemens/myssniffer.py/blob/master/myssniffer.py
If you want to use it with a serial gateway you have to make some changes in the main() routine to grab data from the usb port instead the ethernet port.