spectaql
A powerful library for autogenerating static GraphQL API documentation
rapidoc
RapiDoc - Open API spec viewer with built in console
@openapitools/openapi-generator-cli
A npm package wrapper for OpenAPI Generator (https://github.com/OpenAPITools/openapi-generator), generates which API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)