Generate OpenApi document and input validators with Ajv for express server from TypeScript project

Koas security checks if a request matches the security requirement of an operation. For example, given the following partial OpenAPI document:

Generate a fully typed TypeScript client from an OpenAPI document. Generated clients work in Node.js, browsers, and other JavaScript runtimes with `fetch`.

The OpenAPI document for the Scoutnet API, neatly packaged for NPM.

CLI that parses a NestJS project with ts-morph and generates an OpenAPI document.

The native Mailwoman HTTP API — engine-agnostic /v1 surface (parse, geocode, batch, resolve, format) with health, metrics, and an emitted OpenAPI document.

Create a runtime HTTP client or AI SDK tools directly from an OpenAPI document, without generating source files.

OpenAPI document object class and schema definitions

OpenAPI 3.x document generation for apigen — turns an apigen descriptor into an OpenAPI document. Pure TypeScript (**platform: shared**).

Typed TypeScript client for the Leadping API, generated from the Leadping OpenAPI document with Microsoft Kiota.

Pure OpenAPI document-model + Copy-for-AI transformer shared by docfy-ui and docfy-mcp

MCP server for OpenAPI/Swagger — gives AI agents the ability to discover, search, and call any REST API described by an OpenAPI document.

Types for OpenAPI documents.

Base class for traversing or transforming OpenAPI 2 or 3 documents using a modified visitor design pattern to traverse object types within the OpenAPI document tree.

Modern OpenAPI types

CLI tool for LLM-friendly OpenAPI document querying

Eject selected operations from an OpenAPI document into ready-to-own StitchAPI source — a build-time code generator, separate from the zero-dep runtime.

A validator for OpenAPI documents.

Create an OpenAPI Document and visualize your API with SWAGGER UI.

Finds list of objects of given type from OpenAPI document.