Add an AI chat agent to your website in 3 lines of code

Your website should answer questions while you sleep. Here is the fastest way to get a real AI agent — one that actually knows your business, not a canned FAQ bot — running on any site.

1. Create your agent

Sign up at app.cognitiondesk.com (free tier included), create an assistant, and upload your documents: price lists, service descriptions, opening hours, policies — PDFs, docs or plain text. The platform chunks, embeds and indexes them automatically. From that moment your agent answers from your content (this is RAG — retrieval-augmented generation — without you having to build any of it).

Grab two values from the assistant page: your assistant ID and a public widget key.

2. Drop in the widget

Add this to any HTML page:

<script src="https://cdn.jsdelivr.net/npm/@cognitiondesk/widget@latest/dist/widget.js"></script>
<script>
  CognitionDeskWidget.init({ assistantId: "YOUR_ASSISTANT_ID", apiKey: "YOUR_PUBLIC_KEY" });
</script>

Using React or Next.js? Install the package instead:

npm install @cognitiondesk/widget

import { CognitionDeskWidget } from "@cognitiondesk/widget";

export default function App() {
  return <CognitionDeskWidget assistantId="YOUR_ASSISTANT_ID" apiKey="YOUR_PUBLIC_KEY" />;
}

That's it. A floating chat bubble appears, styled to be unobtrusive, and visitors can ask anything: "do you have availability on Friday?", "how much is a consultation?", "what's your refund policy?" — answered from your documents, in your language.

3. Make it yours

Everything is configurable from the panel, no redeploy needed:

• Persona and tone — the system prompt lives server-side, so you can tune it anytime.
• Appointments — enable the booking tool and the agent schedules visits with reminders.
• Inventory — connect your product catalog and the agent answers stock and price questions.
• Human handoff — the agent detects when a real person should take over.
• Model choice — GPT, Claude, Gemini or local models. Your agent, your rules.

What you just shipped

Not a chatbot with hardcoded replies — a real agent with retrieval over your knowledge base, tools it can call, and memory of each conversation. The same agent can later answer on Telegram or WhatsApp Business without rebuilding anything: one brain, many channels.

Questions? Ask the widget on this very site — it runs on CognitionDesk, of course.