Python Functions on Vercel now support ASGI/WSGI WebSockets natively, letting you stream responses and handle bidirectional client-server communication without external infrastructure.
Summary
Eliminates the need for separate WebSocket servers when building real-time AI features (streaming chat, live updates) on Vercel. Simplifies deployment for FastAPI, Django, and Flask apps that require persistent connections.
Why it matters
Eliminates the need for separate WebSocket servers when building real-time AI features (streaming chat, live updates) on Vercel. Simplifies deployment for FastAPI, Django, and Flask apps that require persistent connections.
Implementation verdict
Replaces the need to self-host or use third-party WebSocket providers for Python on Vercel. Requires Python 3.9+ and an ASGI or WSGI framework. Ready to use now—starter examples provided for FastAPI and Flask. Worth adopting if you're already on Vercel and need real-time features.
Sources
Dev Signal
Get briefs like this in your inbox — free, every weekday.
100+ sources compressed into one 4-minute read. Ranked, cited, implementation-ready.