diff --git a/packages/cta-engine/templates/react/add-on/better-auth/README.md b/packages/cta-engine/templates/react/add-on/better-auth/README.md
new file mode 100644
index 0000000..ca30da0
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/README.md
@@ -0,0 +1,5 @@
+## Setting up Better Auth
+
+- Set the `BETTER_AUTH_SECRET` and `BETTER_AUTH_URL` in your `.env.local`.
+- if you are using pnpm or deno, make sure `better-sqlite3` post install script is run
+- Run `npx @better-auth/cli migrate`
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/assets/_dot_env.local.append b/packages/cta-engine/templates/react/add-on/better-auth/assets/_dot_env.local.append
new file mode 100644
index 0000000..1dab5a3
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/assets/_dot_env.local.append
@@ -0,0 +1,5 @@
+# Better Auth Secret can be anything, preferable a random string
+BETTER_AUTH_SECRET=
+
+# Backend URL
+BETTER_AUTH_URL=http://localhost:3000
\ No newline at end of file
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/assets/src/integrations/better-auth/header-user.tsx b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/integrations/better-auth/header-user.tsx
new file mode 100644
index 0000000..06e9d7d
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/integrations/better-auth/header-user.tsx
@@ -0,0 +1,38 @@
+import { authClient } from "@/lib/auth-client";
+
+export default function HeaderUser() {
+	return (
+		<div className="flex items-center justify-center gap-2">
+			<Avatar />
+			<LogoutButton />
+		</div>
+	);
+}
+
+function Avatar() {
+	const { data } = authClient.useSession();
+	const user = data?.user;
+	if (!user) return null;
+	return (
+		<div className="relative inline-flex items-center justify-center w-6 h-6 overflow-hidden bg-gray-100 rounded-full dark:bg-gray-600">
+			<span className="text-xs font-medium text-gray-600 dark:text-gray-300 uppercase">
+				{user.name.slice(0, 2)}
+			</span>
+		</div>
+	);
+}
+
+function LogoutButton() {
+	const { data } = authClient.useSession();
+	const session = data?.session;
+	if (!session) return null;
+	return (
+		<button
+			onClick={() => authClient.signOut()}
+			type="button"
+			className="focus:outline-none text-white bg-red-700 hover:bg-red-800 focus:ring-4 focus:ring-red-300 font-medium rounded-lg text-xs px-2 py-1 dark:bg-red-600 dark:hover:bg-red-700 dark:focus:ring-red-900"
+		>
+			Logout
+		</button>
+	);
+}
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/assets/src/lib/auth-client.ts b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/lib/auth-client.ts
new file mode 100644
index 0000000..41e8b9c
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/lib/auth-client.ts
@@ -0,0 +1,3 @@
+import { createAuthClient } from "better-auth/react"
+
+export const authClient = createAuthClient()
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/assets/src/lib/auth.ts b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/lib/auth.ts
new file mode 100644
index 0000000..6f1c6a0
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/lib/auth.ts
@@ -0,0 +1,17 @@
+import { betterAuth } from "better-auth";
+import { db } from "./db";
+ 
+export const auth = betterAuth({
+    // This example uses local sqlite database
+    database: db,
+    emailAndPassword: {
+        enabled: true
+    },
+    socialProviders: {
+        // You can add more providers here, check the documentation for more details
+        // github: {
+        //     clientId: "",
+        //     clientSecret: ""
+        // }
+    }
+})
\ No newline at end of file
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/assets/src/lib/db.ts b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/lib/db.ts
new file mode 100644
index 0000000..d4900c4
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/lib/db.ts
@@ -0,0 +1,3 @@
+import Database from "better-sqlite3";
+
+export const db = new Database("./sqlite.db");
\ No newline at end of file
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/api.auth.$.ts b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/api.auth.$.ts
new file mode 100644
index 0000000..afdbafc
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/api.auth.$.ts
@@ -0,0 +1,11 @@
+import { auth } from '@/lib/auth'
+import { createAPIFileRoute } from '@tanstack/react-start/api'
+ 
+export const APIRoute = createAPIFileRoute('/api/auth/$')({
+    GET: ({ request }) => {
+        return auth.handler(request)
+    },
+    POST: ({ request }) => {
+        return auth.handler(request)
+    },
+});
\ No newline at end of file
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/demo.better-auth.login.tsx b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/demo.better-auth.login.tsx
new file mode 100644
index 0000000..653fa66
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/demo.better-auth.login.tsx
@@ -0,0 +1,92 @@
+import { authClient } from "@/lib/auth-client";
+import { createFileRoute, Link } from "@tanstack/react-router";
+import { useState } from "react";
+
+export const Route = createFileRoute("/demo/better-auth/login")({
+	component: RouteComponent,
+});
+
+function RouteComponent() {
+	const { data, isPending } = authClient.useSession();
+	const session = data?.session;
+	const [error, setError] = useState<string | null>(null);
+	const handleSubmit = (e: React.FormEvent<HTMLFormElement>) => {
+		const formData = new FormData(e.currentTarget);
+		e.preventDefault();
+		const email = formData.get("email") as string;
+		const password = formData.get("password") as string;
+		authClient.signIn.email(
+			{
+				email,
+				password,
+			},
+			{
+				onError(context) {
+					setError(context.error.message);
+				},
+				onSuccess() {
+					e.currentTarget.reset();
+				},
+			},
+		);
+	};
+	return (
+		<>
+			<h1 className="text-xl font-bold leading-tight tracking-tight text-gray-900 md:text-2xl dark:text-white mb-4">
+				Sign in to your account
+			</h1>
+			<form className="space-y-4 md:space-y-6" onSubmit={handleSubmit}>
+				<div>
+					<label
+						htmlFor="email"
+						className="block mb-2 text-sm font-medium text-gray-900 dark:text-white"
+					>
+						Your email
+					</label>
+					<input
+						type="email"
+						name="email"
+						id="email"
+						className="bg-gray-50 border border-gray-300 text-gray-900 rounded-lg focus:ring-primary-600 focus:border-primary-600 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500"
+						placeholder="name@company.com"
+						required
+					/>
+				</div>
+				<div>
+					<label
+						htmlFor="password"
+						className="block mb-2 text-sm font-medium text-gray-900 dark:text-white"
+					>
+						Password
+					</label>
+					<input
+						type="password"
+						name="password"
+						id="password"
+						placeholder="••••••••"
+						className="bg-gray-50 border border-gray-300 text-gray-900 rounded-lg focus:ring-primary-600 focus:border-primary-600 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500"
+						required
+					/>
+				</div>
+				<button
+					type="submit"
+					disabled={isPending || !!session}
+					className="w-full text-white bg-blue-700 hover:bg-blue-800 disabled:opacity-50 disabled:cursor-not-allowed focus:ring-4 focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 me-2 mb-2 dark:bg-blue-600 dark:hover:bg-blue-700 focus:outline-none dark:focus:ring-blue-800"
+				>
+					Sign in
+				</button>
+				{session && <p className="text-green-500 m-0">You are signed in</p>}
+				{error && <p className="text-red-500 m-0">{error}</p>}
+				<p className="text-sm font-light text-gray-500 dark:text-gray-400">
+					Don't have an account yet?{" "}
+					<Link
+						to="/demo/better-auth/signup"
+						className="font-medium text-primary-600 hover:underline dark:text-primary-500"
+					>
+						Sign up
+					</Link>
+				</p>
+			</form>
+		</>
+	);
+}
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/demo.better-auth.signup.tsx b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/demo.better-auth.signup.tsx
new file mode 100644
index 0000000..d71d6f6
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/demo.better-auth.signup.tsx
@@ -0,0 +1,94 @@
+import { authClient } from "@/lib/auth-client";
+import { createFileRoute, Link } from "@tanstack/react-router";
+import { useState } from "react";
+
+export const Route = createFileRoute("/demo/better-auth/signup")({
+	component: RouteComponent,
+});
+
+function RouteComponent() {
+	const { data, isPending } = authClient.useSession();
+	const session = data?.session;
+	const [error, setError] = useState<string | null>(null);
+	const handleSubmit = (e: React.FormEvent<HTMLFormElement>) => {
+		const formData = new FormData(e.currentTarget);
+		e.preventDefault();
+		const email = formData.get("email") as string;
+		const password = formData.get("password") as string;
+		const name = (formData.get("email") as string)?.split("@")[0];
+		authClient.signUp.email(
+			{
+				email,
+				password,
+				name,
+			},
+			{
+				onError(context) {
+					setError(context.error.message);
+				},
+				onSuccess() {
+					e.currentTarget.reset();
+				},
+			},
+		);
+	};
+	return (
+		<>
+			<h1 className="text-xl font-bold leading-tight tracking-tight text-gray-900 md:text-2xl dark:text-white mb-4">
+				Sign up to your account
+			</h1>
+			<form className="space-y-4 md:space-y-6" onSubmit={handleSubmit}>
+				<div>
+					<label
+						htmlFor="email"
+						className="block mb-2 text-sm font-medium text-gray-900 dark:text-white"
+					>
+						Your email
+					</label>
+					<input
+						type="email"
+						name="email"
+						id="email"
+						className="bg-gray-50 border border-gray-300 text-gray-900 rounded-lg focus:ring-primary-600 focus:border-primary-600 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500"
+						placeholder="name@company.com"
+						required
+					/>
+				</div>
+				<div>
+					<label
+						htmlFor="password"
+						className="block mb-2 text-sm font-medium text-gray-900 dark:text-white"
+					>
+						Password
+					</label>
+					<input
+						type="password"
+						name="password"
+						id="password"
+						placeholder="••••••••"
+						className="bg-gray-50 border border-gray-300 text-gray-900 rounded-lg focus:ring-primary-600 focus:border-primary-600 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500"
+						required
+					/>
+				</div>
+				<button
+					type="submit"
+					disabled={isPending || !!session}
+					className="w-full text-white bg-blue-700 hover:bg-blue-800 disabled:opacity-50 focus:ring-4 focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 me-2 mb-2 dark:bg-blue-600 dark:hover:bg-blue-700 focus:outline-none dark:focus:ring-blue-800"
+				>
+					Sign up
+				</button>
+				{session && <p className="text-green-500 m-0">You are signed in</p>}
+				{error && <p className="text-red-500 m-0">{error}</p>}
+				<p className="text-sm font-light text-gray-500 dark:text-gray-400">
+					Already have an account?{" "}
+					<Link
+						to="/demo/better-auth/login"
+						className="font-medium text-primary-600 hover:underline dark:text-primary-500"
+					>
+						Sign in
+					</Link>
+				</p>
+			</form>
+		</>
+	);
+}
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/demo.better-auth.tsx b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/demo.better-auth.tsx
new file mode 100644
index 0000000..9cf59c1
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/assets/src/routes/demo.better-auth.tsx
@@ -0,0 +1,17 @@
+import { createFileRoute, Outlet } from "@tanstack/react-router";
+
+export const Route = createFileRoute("/demo/better-auth")({
+	component: RouteComponent,
+});
+
+function RouteComponent() {
+	return (
+		<section className="bg-gray-50 dark:bg-gray-900 flex items-center justify-center mx-auto min-h-[calc(100vh-32px)]">
+			<div className="p-6 w-full bg-white rounded-lg shadow dark:border dark:bg-gray-800 dark:border-gray-700 max-w-md mx-4">
+				<Outlet />
+			</div>
+		</section>
+	);
+}
+
+
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/info.json b/packages/cta-engine/templates/react/add-on/better-auth/info.json
new file mode 100644
index 0000000..1ddf10b
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/info.json
@@ -0,0 +1,14 @@
+{
+  "name": "Better Auth",
+  "description": "Add Better Auth authentication to your application.",
+  "phase": "add-on",
+  "templates": ["file-router"],
+  "link": "https://www.better-auth.com",
+  "routes": [
+    {
+      "url": "/demo/better-auth/signup",
+      "name": "Better Auth"
+    }
+  ],
+  "dependsOn": ["start"]
+}
diff --git a/packages/cta-engine/templates/react/add-on/better-auth/package.json b/packages/cta-engine/templates/react/add-on/better-auth/package.json
new file mode 100644
index 0000000..7cb1fb8
--- /dev/null
+++ b/packages/cta-engine/templates/react/add-on/better-auth/package.json
@@ -0,0 +1,6 @@
+{
+  "dependencies": {
+    "better-auth": "^1.2.7",
+    "better-sqlite3": "^11.9.1"
+  }
+}