Best Open Source openapi Libraries
A curated list of the most popular GitHub repositories tagged with openapi. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1open-webui/open-webui
User-friendly AI Interface (Supports Ollama, OpenAI API, ...)
#2fastapi/fastapi
FastAPI framework, high performance, easy to learn, fast to code, ready for production
#3fastapi/full-stack-fastapi-template
Full stack, modern web application template. Using FastAPI, React, SQLModel, PostgreSQL, Docker, GitHub Actions, automatic HTTPS and more.
#4usebruno/bruno
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
#5OAI/OpenAPI-Specification
The OpenAPI Specification Repository
#6swagger-api/swagger-ui
Swagger UI is a collection of HTML, JavaScript, and CSS assets that dynamically generate beautiful documentation from a Swagger-compliant API.
#7OpenAPITools/openapi-generator
OpenAPI Generator allows generation of API client libraries (SDK generation), server stubs, documentation and configuration automatically given an OpenAPI Spec (v2, v3)
#8Redocly/redoc
📘 OpenAPI/Swagger-generated API Reference Documentation
#9grpc-ecosystem/grpc-gateway
gRPC to JSON proxy generator following the gRPC HTTP spec
#10alufers/mitmproxy2swagger
Automagically reverse-engineer REST APIs via capturing traffic
#11api-platform/api-platform
🕸️ Create REST and GraphQL APIs, scaffold Jamstack webapps, stream changes in real-time.
#12vitalik/django-ninja
💨 Fast, Async-ready, Openapi, type hints based framework for building APIs
#13middleapi/orpc
Typesafe APIs Made Simple 🪄
#14stoplightio/prism
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
#15Azure/autorest
OpenAPI (f.k.a Swagger) Specification code generator. Supports C#, PowerShell, Go, Java, Node.js, TypeScript, Python
#16fern-api/fern
Input OpenAPI. Output SDKs and Docs.
#17Azure/azure-rest-api-specs
The source for REST API specifications for Microsoft Azure.
#18koxudaxi/fastapi-code-generator
This code generator creates FastAPI app from an openapi file.
#19sourcey/sourcey
Precision documentation from OpenAPI, MCP, Doxygen, and Markdown guides. Static HTML you own.
#20wrtnlabs/agentica
TypeScript AI AI Function Calling Framework enhanced by compiler skills.
#21ais-one/novex-kit
NodejS Monorepo Template