A system and method that includes receiving an API request to a type of API resource; retrieving an API concurrency value for the API request; determining a comparison status associated with a comparison of the API concurrency value to a concurrency threshold; if the comparison status is within the concurrency threshold, transmitting the API request to an API processing resource; if the comparison status indicates the concurrency threshold is not satisfied, impeding processing of the API request; accounting for an increase in the API concurrency value if the API request is transmitted to an API processing resource; and accounting for a decrease in the API concurrency value at a time associated with the API processing resource completing processing of the API request.