Increasingly enterprises are building applications designed to run on the serverless computing platform in order to cut the time and cost of deploying apps and increase the scalability of backend services. The serverless landscape changed dramatically on architecture paradigm and challenges the service providers to enforce the Quality of services on Functions(QOS); This talk will Demystifying the usage of API Management for Serverless services and how to overcome the QoS challenges in Serverless Services. The integration via API Management enables developers to use Serverless functions through a variety of QoS; That includes a strategic priority to Serverless architecture patterns and serverless API gateways to enable short-lived, dynamic APIs and composable customized API gateways.