aiohttp

Asynchronous HTTP Client/Server for asyncio

Asynchronous HTTP Client/Server for asyncio and Python. An open-source library for building async web applications with both client and server functionality.

15K

GitHub Stars

none

TypeScript

medium

Learning Curve

4.0

DX Score

Visit Website → Documentation GitHub

Pricing

Model

free

Free Tier

Apache 2.0 licensed, fully open source

Features

✓ HTTP client and server
✓ WebSocket support
✓ Middlewares
✓ Signals
✓ Pluggable routing
✓ Cookie handling
✓ File uploads
✓ Connection pooling
✓ Streaming responses

Pros

+ Both client and server
+ Native asyncio
+ WebSockets built-in
+ Mature and stable
+ Active development

Cons

- Lower-level API
- More boilerplate
- Less beginner friendly
- Verbose syntax

Best For

startup enterprise

Alternatives

FastAPI

Sanic

backend async http-client websockets asyncio