In the past I have used Wireshark to do this. You will want to use a capture filter to limit captured packets to the host and possibly port as well. “host x.x.x.x and port 5000” for example. Then in the packet display filter you can filter by source IP to only show outbound packets, and then further sort by protocol or even MTU size to isolate outbound API calls. Wireshark will show a count of total displayed packets at the bottom. I would recommend starting with a 1 minute, then 10 minute test before executing a full hour, and when you do an hour test, I would actually do 65 minute so you are sure you capture activities that might be on a one hour timer on the driver that might get missed if you do a strict 60 minute capture.