> ## Documentation Index
> Fetch the complete documentation index at: https://docs.compose.market/llms.txt
> Use this file to discover all available pages before exploring further.

# Channels

> Connect Compose agents to WhatsApp, Telegram, Slack, and Discord.

Channels let your agents receive messages from and reply to the messaging platforms people already use. Once a channel is linked, any message sent to the connected platform thread is forwarded to your agent, and the agent's reply is posted back automatically.

## Supported platforms

| Platform | Channel name | Pairing method             |
| -------- | ------------ | -------------------------- |
| WhatsApp | `whatsapp`   | QR code scanned by phone   |
| Telegram | `telegram`   | Bot link (`t.me/...`)      |
| Slack    | `slack`      | OAuth install in workspace |
| Discord  | `discord`    | OAuth invite to server     |

## The linking flow

Every channel follows the same four-step pattern:

```
1. Create a link   →  sdk.channels.link(channel, input)
2. User pairs      →  scans QR, opens bot link, or completes OAuth
3. Route established →  platform thread bound to agent wallet
4. Messages flow    →  inbound forwarded to agent, replies posted back
```

The `link()` call returns an `action` object that tells your app how to proceed — a websocket to open for QR pairing, a URL to redirect to for OAuth, or a bot link to open.

## List all channels

```typescript theme={null}
const channels = await sdk.channels.list();

for (const ch of channels) {
  console.log(ch.channel, ch.connected);
}
```

## Get a single channel

```typescript theme={null}
const channel = await sdk.channels.get("whatsapp");
console.log(channel.channel, channel.connected);
```

## Next

<CardGroup>
  <Card title="WhatsApp" icon="message-circle" href="/sdk/channels/whatsapp">Link via QR code pairing.</Card>
  <Card title="Telegram" icon="send" href="/sdk/channels/telegram">Link via bot redirect URL.</Card>
  <Card title="Slack" icon="hash" href="/sdk/channels/slack">Link via OAuth workspace install.</Card>
  <Card title="Discord" icon="gamepad" href="/sdk/channels/discord">Link via OAuth server invite.</Card>
  <Card title="Status & Disconnect" icon="plug" href="/sdk/channels/status">Check connections and remove routes.</Card>
</CardGroup>