How do I add a chatbot to a site built with Bolt?

Sign up at Asyntai and copy your snippet. In the Bolt editor, open the file tree, open index.html at the project root, and paste the snippet just before the closing head tag. You can also paste the snippet into the Bolt chat and ask Bolt to add it to the head so it loads on every page. Then press Publish and the chat bubble is live.

Does the chatbot work on a bolt.host URL?

Yes. Every project published with Bolt hosting gets a free bolt.host subdomain, and the widget is a standard script tag, so it runs there exactly as it would anywhere else. It also runs on a custom domain and on a project published to Netlify instead.

Will a later Bolt prompt delete the chatbot snippet?

Normal edits leave it alone, because the snippet sits in index.html and Bolt only rewrites the files a prompt actually touches. If a large rewrite does remove it, paste the snippet into the chat again and ask for it back. You can also lock the file or check the diff before you accept changes.

Does the chatbot slow down a Bolt site?

No. The script loads asynchronously after your page, so it never blocks rendering and never delays your first paint. The chat bubble simply appears once the page is ready.

What does the chatbot cost on a new Bolt project?

Nothing to start. The free plan includes 100 messages per month, which suits a project that has just gone live and has no traffic history yet. Paid plans add higher message limits and more features.

Works on bolt.new projects & Bolt hosting

AI Chatbot for Bolt: your site went live in an afternoon — give it a voice by dinner

Bolt compresses the distance between a sentence and a shipped site to almost nothing. Press Publish and it is on a real URL in seconds. Asyntai keeps that pace on the support side: paste one script tag, publish again, and your site answers visitors on its own, using your own content, in their language, all day and all night.

Get Started Free See the 3-step install

Try the chatbot on your live Bolt site first

Drop in your published URL and watch the chatbot answer the sort of questions your visitors will ask.

Speed is the whole point of Bolt — support is where it stops

Everything in Bolt is measured in seconds. The build runs in the browser, the preview refreshes while you type, and hosting is included, so publishing is a button rather than a project. You can go from a rough idea to a live address before your coffee is cold, and people do exactly that, several times a week.

Then the site meets the public, and the clock changes unit. A visitor with one small blocking question either finds the answer in ten seconds or leaves. If your only channel is a contact form, your answer arrives tomorrow, to somebody who has already chosen someone else. The build got a hundred times faster. The reply did not move at all.

Publishing takes seconds. An unanswered question costs days. Close that gap first.

Putting a chatbot on the page fixes the mismatch instead of adding another inbox. It reads what you published, replies while the visitor is still on the page, and quietly collects an email when a real person is needed. For a project that ships this often, it also means every change you make to the copy is reflected in the answers, without editing a script of canned replies.

How to add a chatbot to Bolt in three steps

Create your chatbot. Sign up free at Asyntai, give it your published URL so it can read your pages, and copy the snippet from your dashboard.

Paste the snippet into index.html. Switch from Preview to Code in the Bolt editor, open index.html at the project root, and paste the snippet just before </head>. Or skip the file tree entirely and ask Bolt in chat, using the prompt below.

Press Publish. Bolt pushes the update to your .bolt.host address, your custom domain, or your Netlify site, and the chat bubble is live.

Open index.html and add this script tag right before the closing </head> tag. Change nothing else in the project: [paste your Asyntai snippet]

No app store, no API keys to wire up, no permission screens. Because Bolt hands you the project files, the whole thing is edit, publish, done — usually faster than reading this page.

What your Bolt chatbot does on the page

Answers using your own content

It reads the site you published and the documents you upload, and grounds every reply in those instead of guessing.

Turns curiosity into contacts

When someone is close to buying or booking, the chatbot asks for an email and drops the full conversation in your dashboard.

Replies in the visitor's language

30+ languages, detected automatically. A launch that lands on a global feed does not need a translation project first.

Matches your design

Set the colour, corner, greeting, and tone in the dashboard. Custom instructions decide what it answers and what it hands off.

Chatbot questions from Bolt builders

How do I add the chatbot to my project?

Paste the snippet before </head> in index.html from the Code view, or ask Bolt in chat to add it to the head. Then press Publish.

Does it work on a bolt.host URL?

Yes. It is a standard script tag, so it runs on the free .bolt.host subdomain, on a custom domain, and on a project published to Netlify.

Will a later prompt remove the snippet?

Usually not, since only the files a prompt touches get rewritten. After a big rewrite, paste the snippet into the chat again, or review the diff before accepting changes.

Does it slow the site down?

No. The script loads asynchronously after your page, so nothing about your first paint changes. The bubble appears once the page is ready.

What does it cost?

The free plan covers 100 messages per month, which is plenty for a project that just went live. See pricing for higher limits.

Building on something else?

One snippet, any published site. The install barely changes from builder to builder.

Ship the answers with the site

Paste one script tag, press Publish, and your visitors stop waiting for a reply. Free to start, live in minutes.

Get Started Free