Question

[Mehdi AliSoltani]

Hi all dears
I want to add a web service to the cloudstack which gives a list of available 
VMs , 
cloud i please somebody helps me how i can do it ?
which APIs I need to use them ?
My question is short and maybe Imprecise but please tell me how i should do it. 
 
Sincerely
Mehdi Ali Soltani