The Machine API can be accessed through the top navigation menu:
This page is both documenting the various REST APIs and allowing you to test them.
All OpenvCloud Portal pages are built on top of these APIs, as exposed by the JumpScale application services.
The APIs are grouped as follows:
Below, an example of using the portforwarding/list API for virtual machine with ID '1357' as part of cloud space (virtual datacenter) with ID '140':
When clicking Try it out! you will see the below result: