Overview Azure API Management is a fully managed service that enables customers to publish, secure, transform, maintain, and monitor APIs. With a few clicks in the Azure portal, you can create an API facade that acts as a “front door” through which external and internal applications can access data or business logic implemented by your custom-built backend services, running on Azure, for example on Azure App Service or Azure Kubernetes Service, or hosted outside of Azure, in a private datacenter or on-premises.