Platform Adapters

Adapters handle webhook verification, message parsing, and API calls for each platform. Install only the adapters you need. Browse all available adapters — including community-built ones — on the Adapters page.

Ready to build your own? Follow the building guide.

Feature matrix

Messaging

Feature	Slack	Teams	Google Chat	Discord	Telegram	GitHub	Linear	WhatsApp
Post message	✅	✅	✅	✅	✅	✅	✅	✅
Edit message	✅	✅	✅	✅	✅	✅	✅	✅
Delete message	✅	✅	✅	✅	✅	✅	✅	❌
File uploads	✅	✅	❌	✅	⚠️ Single file	❌	❌	✅ Images, audio, docs
Streaming	✅ Native	⚠️ Post+Edit	⚠️ Post+Edit	⚠️ Post+Edit	⚠️ Post+Edit	❌	❌	❌
Scheduled messages	✅ Native	❌	❌	❌	❌	❌	❌	❌

Rich content

Feature	Slack	Teams	Google Chat	Discord	Telegram	GitHub	Linear	WhatsApp
Card format	Block Kit	Adaptive Cards	Google Chat Cards	Embeds	Markdown + inline keyboard buttons	GFM Markdown	Markdown	WhatsApp templates
Buttons	✅	✅	✅	✅	⚠️ Inline keyboard callbacks	❌	❌	✅ Interactive replies
Link buttons	✅	✅	✅	✅	⚠️ Inline keyboard URLs	❌	❌	❌
Select menus	✅	❌	✅	❌	❌	❌	❌	❌
Tables	✅ Block Kit	✅ GFM	⚠️ ASCII	✅ GFM	⚠️ ASCII	✅ GFM	✅ GFM	❌
Fields	✅	✅	✅	✅	✅	✅	✅	⚠️ Template variables
Images in cards	✅	✅	✅	✅	❌	✅	❌	✅
Modals	✅	❌	❌	❌	❌	❌	❌	❌

Conversations

Feature	Slack	Teams	Google Chat	Discord	Telegram	GitHub	Linear	WhatsApp
Slash commands	✅	❌	❌	✅	❌	❌	❌	❌
Mentions	✅	✅	✅	✅	✅	✅	✅	❌
Add reactions	✅	❌	✅	✅	✅	✅	✅	❌
Remove reactions	✅	❌	✅	✅	✅	⚠️	⚠️	❌
Typing indicator	❌	✅	❌	✅	✅	❌	❌	❌
DMs	✅	✅	✅	✅	✅	❌	❌	✅
Ephemeral messages	✅ Native	❌	✅ Native	❌	❌	❌	❌	❌

Message history

Feature	Slack	Teams	Google Chat	Discord	Telegram	GitHub	Linear	WhatsApp
Fetch messages	✅	✅	✅	✅	⚠️ Cached	✅	✅	⚠️ Cached sent messages only
Fetch single message	✅	❌	❌	❌	⚠️ Cached	❌	❌	⚠️ Cached sent messages only
Fetch thread info	✅	✅	✅	✅	✅	✅	✅	❌
Fetch channel messages	✅	✅	✅	✅	⚠️ Cached	✅	❌	⚠️ Cached sent messages only
List threads	✅	✅	✅	✅	❌	✅	❌	❌
Fetch channel info	✅	✅	✅	✅	✅	✅	❌	❌
Post channel message	✅	✅	✅	✅	✅	❌	❌	✅

⚠️ indicates partial support — the feature works with limitations. See individual adapter pages for details.

How adapters work

Each adapter implements a standard interface that the Chat class uses to route events and send messages. When a webhook arrives:

The adapter verifies the request signature
Parses the platform-specific payload into a normalized Message
Routes to your handlers via the Chat class
Converts outgoing messages from markdown/AST/cards to the platform's native format

Using multiple adapters

lib/bot.ts

import { Chat } from "chat";
import { createSlackAdapter } from "@chat-adapter/slack";
import { createTeamsAdapter } from "@chat-adapter/teams";
import { createGoogleChatAdapter } from "@chat-adapter/gchat";
import { createRedisState } from "@chat-adapter/state-redis";

const bot = new Chat({
  userName: "mybot",
  adapters: {
    slack: createSlackAdapter(),
    teams: createTeamsAdapter(),
    gchat: createGoogleChatAdapter(),
  },
  state: createRedisState(),
});

// This handler fires for mentions on any platform
bot.onNewMention(async (thread) => {
  await thread.subscribe();
  await thread.post("Hello!");
});

Each adapter auto-detects credentials from environment variables, so you only need to pass config when overriding defaults.

The examples above use Redis for state. See State Adapters for all available options.

Each adapter creates a webhook handler accessible via bot.webhooks.<name>.