> brings all my different API servers together and provides a single API endpoint to the outside world Correct. And gives you a single entry point where routin

> brings all my different API servers together and provides a single API endpoint to the outside world Correct. And gives you a single entry point where routing to the "different endpoints in different servers" can be controlled, and cross-cutting concerns can be applied - e.g. request logging, auth, rate limiting, https termination etc. This is not unique to Kong, that is what a API Gateway product will do. But Kong is a fairly full-featured and configurable example of an API Gateway. e.g. you can write Kong plugins, in lua.