Chat SDK

A unified TypeScript SDK for building chat bots with type-safe handlers, JSX cards, and multi-platform support—powered by Vercel
Deploy to production?
PR #103 passed every check.
Same code on every platform. See all adapters
The open-source chat toolkit designed to help developers build chat bots that run on Slack, Teams, Google Chat, Discord, WhatsApp, and more.
Ship to every chat platform from one codebase, without per-platform rewrites.
React to mentions, reactions, and replies with handlers scoped to each thread.
Strict types for adapters, handlers, and JSX cards, checked at build time.
Plug Chat SDK into an entire ecosystem designed for AI-native chat experiences that scale.
Start from a template, or follow a guide to use Chat SDK with Vercel Connect and eve.
Authenticate a Slack bot with Vercel Connect instead of stored secrets.
Answer questions from synced docs and repos with file-system search.
Send Chat SDK messages to an eve agent and stream its replies back to the thread.