This resource represents a collection of all the server machines that have been registered with the site; that is, it represents the total computing power of your site. A site will continue to run as long as there is one server machine online.
The list of server machines in your site can be dynamic. You can register additional server machines when you need to increase the computing power of your site or unregister them if you no longer need them.
The response format. The default response format is html.
Values: html | json
"machines": [ <machine1>, <machine2>, ...]