What protocol can Swagger be represented by for API data exchange?

Swagger (now known as OpenAPI) represents a specification for describing RESTful APIs. For exchanging API data, Swagger uses the OpenAPI Specification format, which is typically presented in YAML or JSON documents.

This document describes the structure of the API, including endpoints, methods, parameters, and data models. Therefore, Swagger is not a data transfer protocol but a format for API specifications.

For data exchange in an API described by Swagger, the HTTP protocol with JSON or XML data formats is usually used.