I was not able to find a figure for the current daily call volume of @APRO Oracle network. This means I do not know the actual number of API calls the APROs oracle network system processes each day. The APROs oracle network processes these API calls on-chain or, off-chain in total. The people who manage APROs oracle network do not share this metric with the public in a clear daily statistic at the moment.
However, there is some published information about API limits for developers using APRO’s oracle services. According to the APRO AI Oracle documentation, the standard plan supports up to 500 000 API calls per day under the base rate limit (with higher limits available on paid plans).
This shows us what the system can handle with a plan but it does not tell us how much the APRO network is actually used when it is running live. A lot of oracle networks do not tell us how calls they get in real time for all their feeds. So unless the APRO network publishes the usage statistics directly we cannot give an exact number of the usage volume across the entire APRO network right now. The APRO network is what we are trying to get information, about and the usage volume of the APRO network is what we want to know.

