Web Chat
Vincent Depassier · September 24, 2026
A web chat channel gives you a chat bubble to put on your own website. Visitors write in it without signing in, their messages arrive as Inbox conversations, and your replies — or your AI agent's — appear back in the bubble.
The trap: leave Allowed sites empty and anyone can put your chat on their site. The snippet contains a key that is public by design — it sits in your page's source. Allowed sites is what stops another site from copying it and filling your Inbox. Fill it in with every domain where the chat should appear.
Creating the channel
Channels → Add Channel → Web chat (embed on a site).
Field | What it is |
Display Name | How the channel is named inside the Inbox |
Title in the widget | The heading of the chat bubble |
Subtitle | A line under the title |
Welcome message | The first message the visitor sees |
Allowed sites (optional) | Comma-separated domains where the chat may run. Empty means any site |
Putting it on your site
On the channel card, Show embed snippet opens Embed the chat with a single <script> tag. Paste it before </body> on every page where the bubble should appear. The key in it is created by the platform; do not edit it.
How it behaves
A visitor's conversation is remembered for 30 days on the same browser, so a reply they read tomorrow lands in the same thread.
A visitor who writes into a Closed, Archived or Snoozed conversation reopens it. Conversations marked Spam stay closed.
The bubble checks for new replies every few seconds while it is open, and less often while it is closed. Replies are not instant, but close to it.
Internal notes are never shown to the visitor.
Limits
Limit | Value |
Message length | 4,000 characters |
Messages from one visitor | 20 per minute |
Attachments | Not supported — text only, both ways |
The texts inside the bubble that you do not set — the message box, the send button — are in English for now.