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Top 23 Python Asyncio Projects
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Project mention: Shipping Sovereign SDK: Cryptographic Forensic Receipts and the End of the AI "Prose Tax" | dev.to | 2026-05-29
The Sovereign SDK is a Python-native framework designed to minimize prose overhead while generating ironclad, cryptographic execution receipts for AI agents, complete with drop-in FastAPI/Starlette ASGI middleware.
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Home Assistant
:house_with_garden: Open source home automation that puts local control and privacy first.
I don’t really know why, but since recently I’ve been reading and watching videos about Home Assistant (HA), and it has always sounded very appealing but I’m a bit change averse and don’t want to commit to something if I’m not sure that I’ll make good use of it. So, when I recently started seriously considering purchasing a Home Assistant Green (which is a preconfigured system running HA), my inner self pushed me into the hole:
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Project mention: A zip bomb can be used to execute a DoS against the aiohttp server | news.ycombinator.com | 2026-01-05
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Project mention: Reverting the incremental GC in Python 3.14 and 3.15 | news.ycombinator.com | 2026-05-13
> I made a PR to fix it but the maintainers haven't applied it. :-( https://github.com/encode/httpx/pull/3733
Unfortunately, you may be the wrong gender to contribute to Encode repositories like httpx:
> I've closed off access to issues and discussions.
> I don't want to continue allowing an online environment with such an absurdly skewed gender representation. I find it intensely unwelcoming, and it's not reflective of the type of working environments I value.
— https://github.com/encode/httpx/discussions/3784
Discussed on Hacker News here: https://news.ycombinator.com/item?id=47193563
A fork discussed here: https://news.ycombinator.com/item?id=47514603
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When you're ready to show your app to the world, you need a production server that can handle real traffic. This is where ASGI servers like Daphne or Uvicorn come in - they're built for speed and security. You combine these with a proper web server like gunicorn, and suddenly your app can actually survive in the wild instead of just running on your laptop.
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Project mention: Hyperflask – Full stack Flask and Htmx framework | news.ycombinator.com | 2025-10-16
A lot of people in this thread mentioning the limitations of Flask and “why not FastAPI” etc - but I’ve found Litestar to be the best alternative and it has htmx support out of the box.
https://litestar.dev/
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aiogram
aiogram is a modern and fully asynchronous framework for Telegram Bot API written in Python using asyncio
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faststream
FastStream is an asynchronous Python framework for building event-driven applications. It brings together message broker integration, dependency injection, validation, testing utilities, and AsyncAPI documentation generation in a single toolkit
Project mention: FastStream 0.7: MQTT support – in-memory tests, AsyncAPI generation and more | news.ycombinator.com | 2026-06-01 -
Project mention: Héberger un agent IA vocal sur AWS Bedrock AgentCore communiquant via WebRTC | dev.to | 2026-03-27
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Dependency Injector - Official Documentation
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slack_sdk (Python Slack SDK) for Web API clients, signature helpers, and retry infrastructure (Python Slack SDK docs, python-slack-sdk repo)
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mcp-context-forge
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 management. Optimizes Agent & Tool calling, and supports plugins.
Project mention: Every AI toolchain is inventing its own safety layer. We shipped one that works across all of them. | dev.to | 2026-05-12Anthropic shipped Claude Code hooks — PreToolUse, PostToolUse, Notification, and friends. They run as subprocesses, get JSON on stdin, and decide whether the tool call proceeds. OpenAI ships tool guardrails in the Agents SDK — Python (and now TS) callables you attach to a tool, with tripwire booleans that abort the run. The MCP ecosystem is sprouting gateways and proxies for the same purpose: MCPX, IBM ContextForge, Microsoft's MCP Gateway, Lasso Security's MCP Gateway — all reasonable answers to the same wire-level question.
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Instead of adding another dependency you can just call `loop.run_in_executor` yourself: https://github.com/Tinche/aiofiles/blob/main/src/aiofiles/ba...
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Python Asyncio discussion
Python Asyncio related posts
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FastStream 0.7: MQTT support – in-memory tests, AsyncAPI generation and more
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When boto3 doesn't have it (yet), you write it: a realtime speech-to-speech story in Python
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A Secret I Will Never Reveal
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Reverting the incremental GC in Python 3.14 and 3.15
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How to keep third-party integrations alive when vendor APIs lock down
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Taskiq – distributed task queue for Python
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When Stability Improves Performance (Threading)
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A note from our sponsor - SaaSHub
www.saashub.com | 6 Jun 2026
Index
What are some of the best open-source Asyncio projects in Python? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | fastapi | 98,890 |
| 2 | Home Assistant | 87,493 |
| 3 | sanic | 18,629 |
| 4 | AIOHTTP | 16,439 |
| 5 | httpx | 15,275 |
| 6 | uvicorn | 10,725 |
| 7 | litestar | 8,259 |
| 8 | asyncpg | 8,041 |
| 9 | Faust | 6,823 |
| 10 | gevent | 6,439 |
| 11 | fastapi-users | 6,157 |
| 12 | aiogram | 5,734 |
| 13 | tortoise-orm | 5,574 |
| 14 | faststream | 5,203 |
| 15 | aiortc | 5,058 |
| 16 | Dependency Injector | 4,878 |
| 17 | strawberry | 4,667 |
| 18 | python-socketio | 4,348 |
| 19 | python-slack-sdk | 4,005 |
| 20 | mcp-context-forge | 3,814 |
| 21 | quart | 3,639 |
| 22 | aiofiles | 3,251 |
| 23 | arq | 2,944 |
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