OpenAPI Specification
The OpenAPI Specification (OAS) defines a standard that can be used to create the interface definition of a RESTful API in a language-agnostic manner. This allows the consumers of the API, whether they're humans or computers, to easily decipher the capabilities of the services without requiring access to source code, documentation, or even inspections of the network traffic. Owing to its wide acceptance in the community, APIs that are defined properly using the specification constructs will be readily available for use by the developers planning to integrate with the API.
There are a variety of developer productivity tools that can parse the OpenAPI definition files, as well as display the API specification in a graphical manner that is easy to understand and follow. There are tools that can generate stubs or proxy classes using these definition files or even in API testing, using mocks.
You can read more about the OpenAPI Specification at https:...