Top ASYNC GitHub Repositories & Tools (2026)

FastAPI framework, high performance, easy to learn, fast to code, ready for production

OpenAI-compatible API migration kit: drop-in /v1/images/generations and chat examples, a compatibility matrix, rollback switches and a checklist for moving workloads between AI API gateways.

💥 Blazing fast terminal file manager written in Rust, based on async I/O.

:house_with_garden: Open source home automation that puts local control and privacy first.

cuTile Rust provides a safe, tile-based kernel programming DSL for the Rust programming language. It features a safe host-side API for passing tensors to asynchronously executed kernel functions.

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.

🐘 Non-blocking, event-driven Swift client for PostgreSQL.

The little ASGI framework that shines. 🌟

An ASGI web server, for Python. 🦄

Event-driven network application framework for high performance protocol servers & clients, non-blocking.

Asynchronous, non-blocking HTTP & WebSocket client for the JVM

Production-ready C++ Asynchronous Framework with rich functionality

Motor - the async Python driver for MongoDB and Tornado or asyncio

A framework for building messaging apps with .NET and C#.

Simple and modern async event emitter

The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀

PHP Standard Library

Sming - powerful open source framework simplifying the creation of embedded C++ applications.

AMQP 0.9 client designed for asyncio and humans.

asyncio support for botocore library using aiohttp