The OpenAPI Specification (OAS) defines a standard, language-agnostic interface to RESTful APIs. It allows both humans and computers to discover and understand the capabilities of the service without access to source code, documentation, or network traffic inspection. When properly defined, a consumer can understand and interact with the remote service with minimal implementation logic. An OpenAPI definition can then be used by documentation generation tools to display the API, code generation tools to generate servers and clients in various programming languages, testing tools, and many other use cases. Many of the 1EdTech standards have OpenAPI-based descriptions for the defined services, including CASE, OneRoster, Comprehensive Learner Record, and Open Badges.
