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Chat SDK Documentation

A unified TypeScript SDK for building chat bots and agents across Slack, Microsoft Teams, Google Chat, Discord, Telegram, WhatsApp, and more — with type-safe handlers, JSX cards, and AI streaming.

For agents: Unified TypeScript SDK docs for building chat bots and agents across Slack, Teams, Google Chat, Discord, Telegram and WhatsApp, with API reference and CLI scaff

chat botstypescript sdkslack botmicrosoft teamsdiscord bottelegram bot

Their llms.txt

The beginning of the file, from our validated copy saved 2026-10-23T08:30:19.753Z. Cached copy · Source on chat-sdk.dev

# Chat SDK Documentation

> A unified TypeScript SDK for building chat bots and agents across Slack, Microsoft Teams, Google Chat, Discord, Telegram, WhatsApp, and more — with type-safe handlers, JSX cards, and AI streaming.

This index lists the documentation pages in plain markdown. Each link points to the markdown version of a page. For the full text of every page concatenated into a single file, see the llms-full.txt link under Optional.

## Documentation

- [Introduction](https://chat-sdk.dev/docs.md): A unified SDK for building chat bots across Slack, Microsoft Teams, Google Chat, Discord, Telegram, and more.
- [Getting Started](https://chat-sdk.dev/docs/getting-started.md): Pick a guide to start building with Chat SDK.
- [CLI](https://chat-sdk.dev/docs/create-chat-sdk.md): Scaffold a Chat SDK bot app with a single command.

## Usage

- [Creating a Chat Instance](https://chat-sdk.dev/docs/usage.md): Initialize the Chat class with adapters, state, and configuration options.
- [Threads, Messages, and Channels](https://chat-sdk.dev/docs/threads-messages-channels.md): Work with threads, messages, and channels across platforms.
- [Handling Events](https://chat-sdk.dev/docs/handling-events.md): Register handlers for mentions, messages, reactions, member joins, and platform-specific events.
- [Posting Messages](https://chat-sdk.dev/docs/posting-messages.md): Different ways to render and send messages with thread.post().
- [Vercel Connect](https://chat-sdk.dev/docs/vercel-connect.md): Authenticate Slack, Microsoft Teams, GitHub, Linear, Discord, Notion, and Telegram adapters with Vercel Connect, using short-lived runtime tokens for outbound calls and OIDC-verified inbound webhooks where supported.
- [Error Handling](https://chat-sdk.dev/docs/error-handling.md): Handle rate limits, unsupported features, and other errors from adapters.
- [Testing](https://chat-sdk.dev/docs/testing.md): Test your bot handlers and custom adapters with @chat-adapter/tests, which provides Vitest factories, custom matchers, and a setup file.

## AI

- [Overview](https://chat-sdk.dev/docs/ai.md): AI utilities that ship with Chat SDK, including agent tools, message conversion, and supporting types.
- [AI SDK Tools](https://chat-sdk.dev/docs/ai/ai-sdk-tools.md): Let an AI agent post messages, send DMs, react, edit, and delete inside your workspace, with approval required for writes by default.
- [toAiMessages](https://chat-sdk.dev/docs/ai/to-ai-messages.md): Convert Chat SDK messages to AI SDK conversation format.
- [TanStack AI](https://chat-sdk.dev/docs/ai/tanstack-ai.md): Feed thread history into TanStack AI's chat(), give it Chat SDK tools, and serve a TanStack AI browser chat from the same bot.
- [Types](https://chat-sdk.dev/docs/ai/types.md): TypeScript types exported from the chat/ai subpath.

## Adapters

- [Overview](https://chat-sdk.dev/docs/adapters.md): Overview of Chat SDK adapters, adapter tiers, and where to find platform, state, and catalog guides.
- [Adapter
…

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