WP OpenAPI

WP OpenAPI is a WordPress plugin that generates OpenAPI 3.1.0 compatible documentation for your WordPress REST APIs.

It has two main features.

• Outputs OpenAPI 3.1.0 spec at /wp-json-openapi
• Provides OpenAPI viewer using Stoplight’s awesome Elements viewer

You can also export your documentation as a single HTML to host it in a server easily.

See more details at https://github.com/moon0326/wp-openapi