Uvicorn

Uvicorn is a lightning-fast ASGI (Asynchronous Server Gateway Interface) server implementation for Python web applications. It's built on uvloop and httptools for exceptional performance, making it one of the fastest Python web servers available. Uvicorn is commonly used to run modern Python web frameworks like FastAPI, Starlette, and other ASGI-compatible applications. It supports HTTP/1.1, WebSocket connections, and can handle thousands of concurrent connections efficiently using asynchronous I/O. The server is designed for production use with features like graceful shutdowns, signal handling, and integration with process managers like Gunicorn. Uvicorn has become the standard ASGI server choice for high-performance Python APIs and microservices.