Node.js WebSocket support runs on Vercel Functions with standard libraries (ws, Socket.IO) and charges only for active CPU time, not idle connections.
June 23, 2026
Summary
Eliminates infrastructure decisions for realtime features—chat, collaborative apps, and AI streaming now deploy directly alongside existing serverless code. Active CPU pricing cuts costs for connection-heavy workloads where traditional billing burns budget on idle time.
Why it matters
Eliminates infrastructure decisions for realtime features—chat, collaborative apps, and AI streaming now deploy directly alongside existing serverless code. Active CPU pricing cuts costs for connection-heavy workloads where traditional billing burns budget on idle time.
Implementation verdict
Replaces dedicated WebSocket infrastructure or third-party realtime services. Requires only standard Node.js ws or Socket.IO libraries; no new configuration. Ready now—public beta, documented, works with existing Vercel deployments.
Sources
Dev Signal
Get briefs like this in your inbox — free, 3× a week.
100+ sources compressed into one 4-minute read. Ranked, cited, implementation-ready.