LibreChat-AI / LibreChat

Enhanced ChatGPT Clone: Features Agents, MCP, Skills, DeepSeek, Anthropic, AWS, OpenAI, Responses API, Azure, Groq, o1, GPT-5, Mistral, OpenRouter, Vertex AI, Gemini, Artifacts, AI model switching, message search, Code Interpreter, langchain, DALL-E-3, OpenAPI Actions, Functions, Secure Multi-User Auth, Presets, open-source for self-hosting. Active

fastapi / full-stack-fastapi-template

Full-stack web application template with FastAPI, React, SQLModel, PostgreSQL, Vite, Tailwind CSS, shadcn/ui, FastAPI Cloud, and Docker Compose.

Redocly / redoc

📘 OpenAPI/Swagger-generated API Reference Documentation

scalar / scalar

Scalar is an open-source API platform:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　🌐 Modern REST API Client　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　📖 Beautiful API References　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　✨ 1st-Class OpenAPI/Swagger Support

mockoon / mockoon

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

openapi-ts / openapi-typescript

Generate TypeScript types from OpenAPI 3 specs

orval-labs / orval

orval is able to generate client with appropriate type-signatures (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification, either in yaml or json formats. 🍺

oomol-lab / open-connector

Open-source auth gateway connecting 1500+ SaaS providers to AI agents through SDK, CLI, MCP, HTTP, and OpenAPI.

samchon / typia

Super-fast/easy runtime validators and serializers via transformation

middleapi / orpc

Typesafe APIs Made Simple 🪄

hey-api / hey-api

👨‍🚀 Turn API specifications into production-ready SDKs, validators, mocks, and more. 20+ plugins. Millions of weekly npm downloads. Used by Vercel, OpenCode, PayPal, AWS, Autodesk, and many more.

loopbackio / loopback-next

LoopBack makes it easy to build modern API applications that require complex integrations.

stoplightio / prism

Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.

UsefulSoftwareCo / executor

The missing integration layer for AI agents. Let them call any OpenAPI / MCP / GraphQL / custom js functions in secure environment.

lukeautry / tsoa

Build OpenAPI-compliant REST APIs using TypeScript and Node

fern-api / fern

Input OpenAPI. Output SDKs and Docs.

msgbyte / tailchat

Next generation noIM application in your own workspace, not only another Slack/Discord/Rocket.chat

ardatan / graphql-mesh

🕸️ GraphQL Federation Framework for any API services such as REST, OpenAPI, Swagger, SOAP, gRPC and more...

ferdikoomen / openapi-typescript-codegen

NodeJS library that generates Typescript or Javascript clients based on the OpenAPI specification

cortex-docs / cortex

Cortex - Generates interactive API documentation, typed SDKs, and MCP servers from OpenAPI, AsyncAPI, GraphQL, gRPC, OpenRPC, and Markdown.

stoplightio / spectral

A flexible JSON/YAML linter for creating automated style guides, with baked in support for OpenAPI (v3.1, v3.0, and v2.0), Arazzo v1.0, as well as AsyncAPI v2.x.

zenstackhq / zenstack

Modern data layer for TypeScript apps - type-safe ORM, built-in access control, automatic query services

docmd-io / docmd

Documentation compiler for humans and machines. One Markdown source to website, search, AI context, and knowledge formats together.

stoplightio / elements

Build beautiful, interactive API Docs with embeddable React or Web Components, powered by OpenAPI and Markdown.

Brooooooklyn / canvas

High performance Skia canvas implementation. Zero system dependencies.

OpenAPITools / openapi-generator-cli

A node package wrapper for https://github.com/OpenAPITools/openapi-generator

ecyrbe / zodios

typescript http client and server with zod validation

nestjs / swagger

OpenAPI (Swagger) module for Nest framework (node.js) :earth_americas:

VoidenHQ / voiden

Design, Test and Document APIs in plain Markdown. Compose Requests with API blocks. Reuse, Replace & Version everything just like code. Offline, Truly Git Native, No Lock-in.

kubb-labs / kubb

🧡 Turn your API spec into type-safe code. Generate TypeScript types, API clients, hooks, validators and mocks from a spec such as OpenAPI.

asteasolutions / zod-to-openapi

A library that generates OpenAPI (Swagger) docs from Zod schemas

steedos / steedos-platform

The AI-Native Infrastructure for Enterprise Apps. Powered by ObjectStack (ObjectQL, ObjectOS, Object UI). Turn Prompts into Enterprise Software.

Redocly / redocly-cli

⚒️ Redocly CLI makes OpenAPI easy. Lint/validate to any standard, generate beautiful docs, and more.

sourcey / sourcey

Precision documentation from OpenAPI, MCP, Doxygen, and Markdown guides. Static HTML you own.

yjl9903 / AnimeGarden

動漫花園 镜像站 | 动画 BT 资源聚合站 | 动画 BT 资源开放接口

BenLorantfy / nestjs-zod

All NestJS + Zod utilities you need

APIDevTools / json-schema-ref-parser

Parse, Resolve, and Dereference JSON Schema $ref pointers in Node and browsers

PaloAltoNetworks / docusaurus-openapi-docs

🦝 OpenAPI plugin for generating API reference docs in Docusaurus v3.

cdimascio / express-openapi-validator

🦋 Auto-validates api requests, responses, and securities using ExpressJS and an OpenAPI 3.1.x or 3.0.x specification

apisyouwonthate / openapi.tools

The most comprehensive collection of quality OpenAPI tooling, curated by Phil Sturgeon and the team at APIs You Won't Hate.

RobinTail / express-zod-api

A Typescript framework to help you get an API server up and running with I/O schema validation and custom middlewares in minutes.

rhinobase / hono-openapi

Hono middleware to generate OpenAPI Swagger documentation

Chinachu / Mirakurun

A Japanese digital TV tuner API server specifically designed for "Air"

HelpCode-ai / anythingmcp

MCP gateway for AI agents: turn any REST/OpenAPI, GraphQL, SOAP or SQL API into MCP tools. 517 ready-made connectors (SAP, ERP, e-commerce) with RBAC, SSO, audit logs and a knowledge graph.

cloudflare / chanfana

OpenAPI 3 and 3.1 schema generator and validator for Hono, itty-router and more!

ardatan / feTS

🗹 TypeScript HTTP Framework focusing on e2e type-safety, easy setup, performance & great developer experience

chapter-three / next-drupal

Next.js for Drupal has everything you need to build a next-generation front-end for your Drupal site: SSG, SSR, and ISR, Multi-site, Authentication, Webforms, Search API, I18n and Preview mode (works with JSON:API and GraphQL).

readmeio / api

🚀 Automatic SDK generation from an OpenAPI definition

openapistack / openapi-backend

Build, Validate, Route, Authenticate and Mock using OpenAPI

apideck-libraries / portman

Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽‍🚀

harsha-iiiv / openapi-mcp-generator

A tool that converts OpenAPI specifications to MCP server

taicode-labs / clarify

An open-source documentation publishing tool built for MDX and OpenAPI. Seamlessly combine markdown, interactive JSX components, and API specifications to create modern, developer-friendly docs.

openapistack / openapi-client-axios

JavaScript client library for consuming OpenAPI-enabled APIs with axios

zuplo / zudoku

Framework for building high quality, interactive API documentation.

Tony133 / fastify-api-boilerplate-jwt

An API Boilerplate to create a ready-to-use REST API in seconds with Fastify + Kysely and JWT Authentication

airtasker / spot

Spot is a concise, developer-friendly way to describe your API contract.

busabase / busabase

Open-source database & workspace for AI agents — structured data, durable knowledge, reusable skills, runnable apps, and human review on the writes that matter. Local-first and self-hostable.

decentralized-identity / veramo

A JavaScript Framework for Verifiable Data

metadevpro / openapi3-ts

TS Model & utils for creating and exposing OpenAPI 3.x contracts.

jellydn / next-swagger-doc

This package reads your JSDoc-annotated source code on NextJS API route and generates an OpenAPI (Swagger) specification.