I'm using Metrics API v2 to get "Process CPU usage" of a process and the response contains the value of all process instances.
Which is the http query parameter to get "Single Value" (highlighted in the screenshot) instead of the values of all process instances?
Do you mean to get the data for one specific process only over the API? Check the entity scope filter in that case. You can say something like "type(PROCESS_GROUP_INSTANCE), entityID(your process ID)