diff --git a/.eslintrc.json b/.eslintrc.json
index 6699e02..f9406b5 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -10,6 +10,7 @@
     "object-curly-newline": "off",
     "react/require-default-props": "off",
     "implicit-arrow-linebreak": "off",
-    "function-paren-newline": "off"
+    "function-paren-newline": "off",
+    "@typescript-eslint/indent": "off"
   }
 }
diff --git a/src/app/layout.tsx b/src/app/layout.tsx
index 86de46b..40012da 100644
--- a/src/app/layout.tsx
+++ b/src/app/layout.tsx
@@ -4,11 +4,12 @@ import { Inter } from 'next/font/google';
 import { Analytics } from '@vercel/analytics/react';
 import { SpeedInsights } from '@vercel/speed-insights/next';
 import Provider from '@/providers';
-import './globals.css';
 import Header from '@/components/header';
 import Footer from '@/components/footer';
+import ChannelTalk from '@/components/channel-talk';
 import Favicon from '../../public/favicon.ico';
 import AppleTouch from '../../public/apple-touch-icon.png';
+import './globals.css';
 
 const inter = Inter({ subsets: ['latin'] });
 
@@ -56,6 +57,7 @@ export default function RootLayout({ children }: Props) {
         </Provider>
         <Analytics />
         <SpeedInsights />
+        <ChannelTalk />
       </body>
     </html>
   );
diff --git a/src/components/channel-talk/index.tsx b/src/components/channel-talk/index.tsx
new file mode 100644
index 0000000..14e674b
--- /dev/null
+++ b/src/components/channel-talk/index.tsx
@@ -0,0 +1,64 @@
+'use client';
+
+import Script from 'next/script';
+import { useEffect } from 'react';
+import * as Env from '@/utils/env';
+
+export default function ChannelTalk() {
+  const pluginKey = Env.get({ key: 'CHANNEL_TALK_PLUGIN_KEY' });
+
+  useEffect(() => {
+    try {
+      const { ChannelIO } = window;
+
+      if (ChannelIO) {
+        ChannelIO('boot', {
+          pluginKey,
+        });
+      }
+    } catch (error) {
+      console.error('ChannelIO is not defined');
+    }
+  }, [pluginKey]);
+
+  return (
+    <Script id="channel-talk-script" strategy="afterInteractive">
+      {`
+  (function () {
+    var w = window;
+    if (w.ChannelIO) {
+      return w.console.error('ChannelIO script included twice.');
+    }
+    var ch = function () {
+      ch.c(arguments);
+    };
+    ch.q = [];
+    ch.c = function (args) {
+      ch.q.push(args);
+    };
+    w.ChannelIO = ch;
+    function l() {
+      if (w.ChannelIOInitialized) {
+        return;
+      }
+      w.ChannelIOInitialized = true;
+      var s = document.createElement('script');
+      s.type = 'text/javascript';
+      s.async = true;
+      s.src = 'https://cdn.channel.io/plugin/ch-plugin-web.js';
+      var x = document.getElementsByTagName('script')[0];
+      if (x.parentNode) {
+        x.parentNode.insertBefore(s, x);
+      }
+    }
+    if (document.readyState === 'complete') {
+      l();
+    } else {
+      w.addEventListener('DOMContentLoaded', l);
+      w.addEventListener('load', l);
+    }
+  })();
+  `}
+    </Script>
+  );
+}
diff --git a/src/types/window.d.ts b/src/types/window.d.ts
new file mode 100644
index 0000000..402797f
--- /dev/null
+++ b/src/types/window.d.ts
@@ -0,0 +1,15 @@
+interface BootOptions {
+  pluginKey: string;
+}
+
+type ChannelIO = (
+  command: 'boot',
+  bootOption: BootOptions,
+  callback?: () => void,
+) => void;
+
+export declare global {
+  interface Window {
+    ChannelIO?: ChannelIO;
+  }
+}
diff --git a/src/utils/env.ts b/src/utils/env.ts
index 405ac48..810fb93 100644
--- a/src/utils/env.ts
+++ b/src/utils/env.ts
@@ -7,7 +7,11 @@ function makeOption(value: string | undefined | null): O.Option<string> {
 }
 
 interface Get {
-  key: 'SUPABASE_URL' | 'SUPABASE_ANON_KEY' | 'BASE_URL';
+  key:
+    | 'SUPABASE_URL'
+    | 'SUPABASE_ANON_KEY'
+    | 'BASE_URL'
+    | 'CHANNEL_TALK_PLUGIN_KEY';
 }
 
 export function get({ key }: Get) {
@@ -16,6 +20,10 @@ export function get({ key }: Get) {
       .with('SUPABASE_URL', () => process.env.SUPABASE_URL)
       .with('SUPABASE_ANON_KEY', () => process.env.SUPABASE_ANON_KEY)
       .with('BASE_URL', () => process.env.BASE_URL)
+      .with(
+        'CHANNEL_TALK_PLUGIN_KEY',
+        () => process.env.NEXT_PUBLIC_CHANNEL_TALK_PLUGIN_KEY,
+      )
       .exhaustive(),
     makeOption,
   );