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Add AI to Next.js

Integrate the Kapa chat widget into your Next.js application to enable users to ask natural language questions about your product, significantly enhancing user experience by providing quick and accurate answers.

Prerequisites​

Before adding the widget to your Next.js site, you'll need to:

  1. Ensure you have a Kapa project set up with your knowledge sources added
  2. Follow the general installation instructions to enabled your domain and obtain your Website ID

Installation​

App Router (Next.js 13+)​

Add the widget script to your root layout file (app/layout.tsx or app/layout.js):

import Script from "next/script";

export default function RootLayout({
  children,
}: {
  children: React.ReactNode;
}) {
  return (
    <html lang="en">
      <head>
        <Script
          src="https://widget.kapa.ai/kapa-widget.bundle.js"
          data-website-id="XXX-XXX-XXX"
          data-project-name="PROJECT_NAME"
          data-project-color="#HEX_COLOR_CODE"
          data-project-logo="https://LINK_TO_LOGO.com/logo.png"
          async
        />
      </head>
      <body>{children}</body>
    </html>
  );
}

Pages Router (Legacy)​

Add the widget script to your pages/_document.tsx or pages/_document.js file:

import { Html, Head, Main, NextScript } from "next/document";

export default function Document() {
  return (
    <Html>
      <Head>
        <script
          src="https://widget.kapa.ai/kapa-widget.bundle.js"
          data-website-id="XXX-XXX-XXX"
          data-project-name="PROJECT_NAME"
          data-project-color="#HEX_COLOR_CODE"
          data-project-logo="https://LINK_TO_LOGO.com/logo.png"
          async
        />
      </Head>
      <body>
        <Main />
        <NextScript />
      </body>
    </Html>
  );
}
Customization Options

To tailor the widget to your brand and specific needs, visit our Configuration page. There, you'll find detailed instructions on how to adjust colors, logos, and other widget properties.