There is agent management and listener management landing page under system operations, there you have lot of options to monitor / start / stop agents , listeners, It will display the listenrs status on cluster level / node level . It has many more options. please go through that and i think that would be enough for you.
If you still need to autmoate more, you can use the OOTB d pages which are available under "Pega-SystemOperations" ruleset.
Attached the SS for the same which has usage as well.