diff --git a/frontend/src/App.jsx b/frontend/src/App.jsx
index 1eee111..8574678 100644
--- a/frontend/src/App.jsx
+++ b/frontend/src/App.jsx
@@ -15,6 +15,7 @@ const App = () => {
   });
   const [systemInfo, setSystemInfo] = useState(null);
   const [usageStats, setUsageStats] = useState(null);
+  const [authStatus, setAuthStatus] = useState(null);
   const [loading, setLoading] = useState(false);
   const [activeView, setActiveView] = useState('tasks'); // 'tasks' | 'dashboard'
 
@@ -23,10 +24,12 @@ const App = () => {
     fetchTasks();
     fetchSystemInfo();
     fetchUsageStats();
+    fetchAuthStatus();
     const interval = setInterval(() => {
       fetchTasks();
       fetchSystemInfo();
       fetchUsageStats();
+      fetchAuthStatus();
     }, 10000);
     return () => clearInterval(interval);
   }, []);
@@ -61,6 +64,38 @@ const App = () => {
     }
   };
 
+  const fetchAuthStatus = async () => {
+    try {
+      const response = await fetch('/api/auth/status');
+      const data = await response.json();
+      setAuthStatus(data);
+    } catch (error) {
+      console.error('Error fetching auth status:', error);
+    }
+  };
+
+  const handleLogin = async () => {
+    try {
+      const response = await fetch('/api/auth/login', { method: 'POST' });
+      const data = await response.json();
+      setAuthStatus(prev => ({ ...prev, ...data }));
+      if (data.auth_url) {
+        window.open(data.auth_url, '_blank');
+      }
+    } catch (error) {
+      console.error('Error initiating login:', error);
+    }
+  };
+
+  const handleLogout = async () => {
+    try {
+      await fetch('/api/auth/logout', { method: 'POST' });
+      fetchAuthStatus();
+    } catch (error) {
+      console.error('Error logging out:', error);
+    }
+  };
+
   const handleCreateTask = async (e) => {
     e.preventDefault();
     setLoading(true);
@@ -137,6 +172,15 @@ const App = () => {
             <button className={`nav-btn ${activeView === 'tasks' ? 'active' : ''}`} onClick={() => setActiveView('tasks')}>Tasks</button>
             <button className={`nav-btn ${activeView === 'dashboard' ? 'active' : ''}`} onClick={() => setActiveView('dashboard')}>Dashboard</button>
           </nav>
+          <div className="auth-badge">
+            {authStatus?.status === 'logged_in' ? (
+              <span className="auth-ok" title={authStatus.account}>● {authStatus.account || 'Logged in'}</span>
+            ) : authStatus?.status === 'pending' ? (
+              <span className="auth-pending">⏳ Awaiting login…</span>
+            ) : (
+              <button className="auth-login-btn" onClick={handleLogin}>🔐 Login with Claude Max</button>
+            )}
+          </div>
           {systemInfo && (
             <div className="system-status">
               <span className={`status-indicator ${systemInfo.scheduler_running ? 'running' : 'stopped'}`}></span>
@@ -187,6 +231,43 @@ const App = () => {
               )}
             </div>
 
+            <div className="dashboard-section">
+              <h3>Claude Authentication</h3>
+              <div className="auth-panel">
+                {authStatus?.status === 'logged_in' ? (
+                  <div className="auth-connected">
+                    <span className="auth-icon">✅</span>
+                    <div>
+                      <div className="auth-title">Connected to Claude Max</div>
+                      <div className="auth-sub">{authStatus.account}</div>
+                    </div>
+                    <button className="btn btn-secondary btn-sm" onClick={handleLogout}>Log Out</button>
+                  </div>
+                ) : authStatus?.status === 'pending' ? (
+                  <div className="auth-pending-panel">
+                    <span className="auth-icon">⏳</span>
+                    <div>
+                      <div className="auth-title">Waiting for browser login…</div>
+                      {authStatus.auth_url && (
+                        <a className="auth-url-link" href={authStatus.auth_url} target="_blank" rel="noreferrer">
+                          Open login page →
+                        </a>
+                      )}
+                    </div>
+                  </div>
+                ) : (
+                  <div className="auth-disconnected">
+                    <span className="auth-icon">🔐</span>
+                    <div>
+                      <div className="auth-title">Not logged in</div>
+                      <div className="auth-sub">Log in with your Claude Max account to run tasks</div>
+                    </div>
+                    <button className="btn btn-primary btn-sm" onClick={handleLogin}>Login with Claude Max</button>
+                  </div>
+                )}
+              </div>
+            </div>
+
             <div className="dashboard-section">
               <h3>Claude API Usage</h3>
               <div className="usage-grid">