The original cloudmonkey was written in Python and contributed to Apache CloudStack project by Rohit Yadav on 31 Oct 2012 under the Apache License 2.0. The Python-based tool is now referred to as the legacy cloudmonkey and can be installed using pip install cloudmonkey.

Docs for legacy cloudmonkey: https://cwiki.apache.org/confluence/display/CLOUDSTACK/CloudStack+cloudmonkey+CLI

Starting version 6.0.0, the modern cloudmonkey cmk is a fast and simplified Go-port of the original tool with some backward incompatibilities and reduced feature set. It ships as a standalone 64-bit executable binary for several platforms such as Linux, Mac and Windows.

See https://github.com/apache/cloudstack-cloudmonkey#development

CloudMonkey v6.0.0-beta3 on Ubuntu GNU/Linux 18.10: