Open source fastapi projects
Every project in the registry tagged fastapi, ranked by real GitHub adoption.
FastAPI framework, high performance, easy to learn, fast to code, ready for production
Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 20% fewer tokens for coding agents, 60-95% fewer tokens for JSON, same answers. Li
🚀 Self-hosted TikTok & Douyin scraper and no-watermark video downloader — async REST API, MCP server, CLI and web console for posts, profiles, comments and pla
Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!
Modern payment infrastructure for digital products and SaaS
Distributed task queue for background jobs and workflows
跨平台 Python 异步聊天机器人框架 / Asynchronous multi-platform chatbot framework written in Python
可私有部署的多租户知识智能体平台:统一 RAG、知识图谱、多智能体、MCP/Skills、沙盒与权限管理。Self-hosted knowledge agent platform for RAG, knowledge graphs and multi-agent workflows.
TSP自托管、零运维的 A 股「选股 + 监控 + 回测」量化工作台 | LLM能力驱使策略定制+个股分析+复盘 | 自由接入第三方数据源与个性化扩展数据 | 个人开源
Zero-modification Human-in-the-Loop adapter for OpenOPC's agentic DAG runtime.
Zero-modification Human-in-the-Loop adapter for OpenOPC's agentic DAG runtime.
Deploy apps instantly with git push - open source alternative
An AI Gateway, registry, and proxy that sits in front of any MCP, A2A, or REST/gRPC APIs, exposing a unified endpoint with centralized discovery, guardrails and
Powerful observability made simple for developers
Huma REST/HTTP API Framework for Golang with OpenAPI 3.1
Generate Pydantic v2 models, dataclasses, TypedDict, and msgspec.Struct from OpenAPI, JSON Schema, GraphQL, Avro, Protobuf, and raw JSON/YAML/CSV.
Open source security automation platform for builders
Docker image with Uvicorn managed by Gunicorn for high-performance FastAPI web applications in Python with performance auto-tuning.
Your Self-Hosted Knowledge Base
Convert wearable data into actionable health insights with open algorithms
FastAPI + Playwright + Camoufox 中间层代理服务器,兼容OpenAI API且支持参数转发。项目通过浏览器自动化将API请求转发到 Google AI Studio Chat,并同样按照OpenAI标准格式返回的工具。内置调试WebUI面板。
💬 RasaGPT is the first headless LLM chatbot platform built on top of Rasa and Langchain. Built w/ Rasa, FastAPI, Langchain, LlamaIndex, SQLModel, pgvector, ngr
👻 Proxy API gateway for Kiro IDE & CLI (Amazon Q Developer / AWS CodeWhisperer). Use free Claude models with any client.
AWS Lambda support for ASGI applications
Generate modern Python clients from OpenAPI
AKTools is an elegant and simple HTTP API library for AKShare, built for AKSharers!
Browse the sample apps demonstrating Aspire integration across C#, JavaScript, TypeScript, Python, Go, containers, databases, cloud, AI, and observability scena
Open-source construction ERP - BOQ, PDF/CAD/BIM takeoff, AI cost matching, 293 guided cases. 55,000 priced positions, 44 languages, 195 modules. AGPL-3.0. pip i
ID-based RAG FastAPI: Integration with Langchain and PostgreSQL/pgvector
Give your AI agent a real browser — with a human in the loop. Open-source MCP-native browser agent.
Open-source, self-hosted alternative to Composio, Nango, Merge.dev, and Arcade.dev for AI agent integrations. Run GitHub, Slack, Hacker News, and custom HTTP ac
🤖 AI-powered web scraping editor with visual workflow builder. Build, test & deploy web scrapers using natural language. Powered by ScrapeGraphAI & LangGraph.
Real-time network monitor + outbound firewall — see & block every connection. Privacy-first, local-first, Rust fleet agent, SIEM exports, 8 languages. / Moniteu
ChatGPT at home! A better alternative to commercial smart home assistants, built on the Raspberry Pi using LiteLLM and LangGraph.
Free, open-source alternative to Weavy AI, Krea Nodes, Freepik Spaces & FloraFauna AI — node-based AI workflow builder for generative image & video pipelines
中文优先的企业 RAG 知识库:可控解析、治理、切块、混合检索、重排、引用、图谱、评测与 Dify 接入。
Free, open-source alternative to ChatGPT Spaces: a self-hostable AI workspace for shared pages and conversations.
Related tags
Frequently asked questions
How many open source fastapi projects are there?
This registry tracks 37 projects tagged fastapi, with 324,043 GitHub stars between them. The most-adopted is fastapi at 104,566 stars.
Are these fastapi projects free to use?
Yes — 37 of the 37 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which fastapi project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these fastapi projects still maintained?
32 of the 37 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.