Harry is planning to launch a web service in his cloud environment for his clients to utilize. He wants the ability to monitor the service's activity and prevent abuse without shutting it down completely if issues arise due to customer activity. What is the measure he should put in place to accomplish this?

API keys permit individual customers to authenticate themselves to the API service, enabling Henry to deactivate specific problematic API keys rather than disabling access for all users. Implementing logging through a service like Amazon's API Gateway provides scalability, monitoring, and logging capabilities, as well as tools like web application firewalls. For this question, an API proxy and API-centric intrusion prevention system (IPS) were created.