How to calculate Search requests per seconds

Elastic Stack Elasticsearch
1

Hi,
is there a way to calculate the whole value of Search requests per seconds?
I would like to get it referred to the entire cluster and not only for a specific index.

the same question is also for response time.

thanks

2

I believe that monitoring does that out of the box.

3

Sure, but I would like to know if that is possible using any API method

4

May be this? https://www.elastic.co/guide/en/elasticsearch/reference/current/cluster-nodes-stats.html