Decomposing a monolithic architecture into a Microservice architecture exponentially increases the complexity in managing APIs. The challenges around API management can be categorized on to three divisions:

• Abstraction: Abstracting the API developers and the consumers from complexities around security, transformation, analytics, diagnostics, throttling and quota management, caching, and so on.
• Publishing: Publishing APIs, grouping APIs as bundles which can be associated with a business use case, deriving insights from consumption, and managing consumers.
• Documentation: Creating and maintaining a catalog of deployed APIs, documenting the ways they can be consumed, analytics, and so on.

Manually managing these responsibilities become extensively complex especially in hyper scale enterprise ready deployment of Microservices: