Basic Question : Is VIX API only for VMs?

Folks:

I think its a basic question. I see that the "VIX API" is listed under Virtual Machine Management section. Does this mean ESX/ESXi management is not supported by VIX API? Please advice. I'm looking to evaluate a tool which can help me automate reading of some of the config settings on ESXi for e.g I would like to check if the SSH running on ESX is using protocol 2 or protocol 1. If you are aware of any tools which can help me achieve this, please advice.

Thanks in advance.

Regards,

Parash