Node + TypeScript <=> OpenAPI

OpenAPI.Tools

lukeautry/tsoa: Build OpenAPI-compliant REST APIs using TypeScript and Node

Creates OpenAPI docs and provides free runtime validation for your Koa, Express, Hapi (and more) services

OpenAPITools/openapi-generator: OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)

Use Swagger to generate API client in Frontend | by Suraj KC | Medium

APITree - Create, manage, and share API documentation