OpenAPI Specification

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

📘 OpenAPI/Swagger-generated API Reference Documentation

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

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

Generate TypeScript types from OpenAPI 3 specs

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

Super-fast/easy runtime validators and serializers via transformation

Typesafe APIs Made Simple 🪄

👨‍🚀 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.

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

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

Input OpenAPI. Output SDKs and Docs.

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

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

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

🌄 - RPC-like client, contract, and server implementation for a pure REST API

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

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.

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

MCP Aggregator, Orchestrator, Middleware, Gateway in one docker