---
id: anyio
version: "4.14.2"
license: MIT
license_treatment: permissive
maintenance: active
---

# anyio — High-level concurrency and networking framework on top of asyncio or Trio

License: permissive · Maintenance: active · Popularity: top 100 on PyPI

## Install

pip install anyio
uv add anyio
poetry add anyio

## Description

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AnyIO is an asynchronous networking and concurrency library that works on top of either asyncio_ or
Trio_. It implements Trio-like `structured concurrency`_ (SC) on top of asyncio and works in harmony
with the native SC of Trio itself.

Applications and libraries written against AnyIO's API will run unmodified on either asyncio_ or
Trio_. AnyIO can also be adopted into a library or application incrementally – bit by bit,...

## AI interpretation — verify before relying

AnyIO is an asynchronous networking and concurrency library that provides a unified API across asyncio and Trio backends, enabling structured concurrency patterns like task groups, high-level networking (TCP, UDP, UNIX sockets), and inter-task synchronization.

Verdict: AnyIO is a production-stable, actively maintained library in the top 100 PyPI packages with no known vulnerabilities. Its permissive MIT license, low install friction, and broad Python version support (3.10–3.15) make it a reliable choice for building cross-backend async applications.

[View on SkillFed](https://skillfed.io/packages/anyio) · [View on PyPI](https://pypi.org/project/anyio/)