Swagger (OpenAPI)

Swagger, also known as OpenAPI, is a toolset that helps developers design, document, and test web APIs—systems that allow different software applications to communicate. It provides a clear, standardized way to describe what an API does, what data it expects, and how to interact with it. This makes it easier for developers to understand how to use the API correctly and build compatible applications. Essentially, Swagger acts as a detailed manual and testing environment for APIs, promoting consistency, improved collaboration, and faster development across software projects.