# Facebook Messenger

Connect a client's Facebook Page so its AI assistant handles Messenger chats

> Full REST + WebSocket API reference: https://api.happ.tools/reference

Connecting Facebook Messenger lets your client's AI assistant answer everyone who messages their Facebook Page — Happ authorizes through the **Meta OAuth 2.0** flow.

<ChannelDetailDemo channel="facebook" />

## Connect [#connect]

1. Ensure the client has a **Facebook Page** and admin access to it.
2. **Integrations** > **Add Integration** > **Facebook Messenger**.
3. Authorize on Meta via OAuth 2.0 and grant messaging permissions.
4. Select the Facebook Page.
5. Assign an AI assistant and activate.

Meta access tokens refresh automatically. Text, images, attachments, and voice are supported; conversations appear in the [Chat Dashboard](/docs/chats).

**API:** [api.happ.tools/reference](https://api.happ.tools/reference)

## Next [#next]

* [Channels](/docs/channels) — all messengers
* [Assistants](/docs/assistants) — configure who answers
* [AI control](/docs/ai-control) — toggling AI per conversation