Commonly confused

API vs API Gateway

An API is the contract. An API gateway is infrastructure that fronts many APIs with shared policy.

API

An Application Programming Interface (API) is a set of rules and protocols that allows different software applications to communicate with each other. It defines the methods and data formats that applications can use to request and exchange information, acting as an intermediary.

An API is a set of rules allowing software applications to communicate and exchange data, enabling seamless integration and efficient development.

Full PathTerms™ definition

API Gateway

An API Gateway is a server that acts as a single entry point for clients accessing various backend services. It handles incoming requests, routes them to the appropriate microservice or application, and then returns the response to the client. This abstraction simplifies client.

An API Gateway is a single entry point for clients accessing backend services, simplifying interactions and centralizing management.

Full PathTerms™ definition

Why it matters

People mix up API and API Gateway in exam questions and job posts. Knowing the difference helps you pick the right control, process, or architecture choice.

How to remember the difference

An API is the contract. An API gateway is infrastructure that fronts many APIs with shared policy.

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