uvloop
Fast asyncio event loop implementation for Python based on libuv.
HTTP servers and APIs PyPI MIT License
Used in agent projects
29
0.2% of 12,697 public repos built with AI coding agents
Rank in http servers and apis
#28 of 30
by use in those projects
Downloads
62.1M
PyPI, last 7 days, uvloop
GitHub stars
11.9K
last push Oct 6, 2026
How uvloop is used
uvloop is a dependency in 29 of the 12,697 public GitHub projects set up for AI coding agents that we scanned (0.2%), #28 of 30 in http servers and apis. The most used alternative there is Express. Projects that use it most often also use FastAPI (89.7%), Pydantic (89.7%), PyYAML (82.8%).
Often used with uvloop
| FastAPI | 89.7% of uvloop projects · 21.2× more than average |
|---|---|
| Pydantic | 89.7% of uvloop projects · 17.5× more than average |
| PyYAML | 82.8% of uvloop projects · 27.3× more than average |
| Uvicorn | 82.8% of uvloop projects · 19.3× more than average |
| python-dotenv | 75.9% of uvloop projects · 11.6× more than average |
| AnyIO | 65.5% of uvloop projects · 44.7× more than average |
| Click | 65.5% of uvloop projects · 37.3× more than average |
By coding agent
| Claude Code | 0.5% of projects set up for it |
|---|---|
| GitHub Copilot | 0.5% of projects set up for it |
| Cursor | 0.4% of projects set up for it |
Share of public repos configured for each agent that list uvloop as a dependency.
Install
| Package | pip install uvloop |
|---|---|
| Main stacks | Python (28), Next.js (1) |
| Example projects | learntocloud/learn-to-cloud-app, kr8tiv-ai/Jarvis, RoboFinSystems/robosystems, leonardsellem/readwise-vector-db |
Alternatives to uvloop
| Tool | Used in agent projects | Downloads / wk | GitHub stars | License |
|---|---|---|---|---|
| Express npm Fast, unopinionated minimalist web framework for Node.js. |
822 (6.5%) | 142M | 69.6K | MIT |
| Uvicorn pypi Lightning-fast ASGI server for running async Python web applications. |
544 (4.3%) | 13M | 11K | — |
| FastAPI pypi High-performance Python web framework with automatic API docs and async support. |
537 (4.2%) | 107M | 103K | — |
| cors npm Express/Node.js middleware for handling Cross-Origin Resource Sharing. |
422 (3.3%) | 86.8M | 6,195 | MIT |
| python-multipart pypi Streaming multipart parser for handling file uploads in Python web frameworks. |
217 (1.7%) | 92.8M | 536 | — |
| Flask pypi Lightweight Python web framework for building web applications and APIs. |
174 (1.4%) | 40.9M | 75K | — |
| Hono npm Ultrafast web framework for edge runtimes built on Web Standards. |
136 (1.1%) | 73.9M | 32.5K | MIT |
| express-rate-limit npm Express middleware for rate limiting API requests by IP address. |
105 (0.8%) | 57.6M | 3,311 | MIT |