diff --git a/services/web-ui/public/cluster.html b/services/web-ui/public/cluster.html
new file mode 100644
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+++ b/services/web-ui/public/cluster.html
@@ -0,0 +1,393 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <link rel="icon" type="image/x-icon" href="favicon.ico">
+  <title>Cluster — Z-AMPP</title>
+  <link rel="stylesheet" href="css/common.css">
+  <style>
+    .page-body {
+      flex: 1;
+      overflow: auto;
+      padding: 24px;
+    }
+
+    .z-table {
+      width: 100%;
+      border-collapse: collapse;
+      font-size: var(--text-sm);
+    }
+    .z-table th {
+      padding: 8px 12px;
+      text-align: left;
+      font-size: 10px;
+      font-weight: 600;
+      text-transform: uppercase;
+      letter-spacing: .08em;
+      color: var(--text-tertiary);
+      border-bottom: 1px solid var(--border);
+      background: var(--bg-panel);
+      position: sticky;
+      top: 0;
+      z-index: 1;
+      white-space: nowrap;
+    }
+    .z-table td {
+      padding: 10px 12px;
+      border-bottom: 1px solid var(--border);
+      vertical-align: middle;
+      color: var(--text-secondary);
+    }
+    .z-table tr:hover td { background: var(--bg-hover); }
+    .z-table .empty-row {
+      text-align: center;
+      padding: 48px;
+      color: var(--text-tertiary);
+    }
+
+    .node-status-dot {
+      width: 8px; height: 8px;
+      border-radius: 50%;
+      display: inline-block;
+      flex-shrink: 0;
+    }
+    .status-online  { background: oklch(62% 0.20 145); box-shadow: 0 0 5px oklch(62% 0.20 145 / 0.6); }
+    .status-warn    { background: oklch(68% 0.18 80);  box-shadow: 0 0 5px oklch(68% 0.18 80  / 0.6); }
+    .status-offline { background: oklch(55% 0.16 25);  }
+
+    .role-badge {
+      display: inline-flex;
+      align-items: center;
+      padding: 2px 7px;
+      border-radius: 999px;
+      font-size: 10px;
+      font-weight: 600;
+      letter-spacing: .04em;
+      text-transform: uppercase;
+    }
+    .role-primary { background: oklch(22% 0.07 266 / 0.6); color: oklch(68% 0.18 266); border: 1px solid oklch(45% 0.14 266 / 0.5); }
+    .role-worker  { background: oklch(18% 0.03 250 / 0.6); color: oklch(55% 0.06 250); border: 1px solid oklch(35% 0.05 250 / 0.5); }
+
+    .mem-bar-wrap {
+      width: 80px;
+      height: 4px;
+      background: var(--bg-surface);
+      border-radius: 2px;
+      overflow: hidden;
+      margin-top: 3px;
+    }
+    .mem-bar {
+      height: 100%;
+      border-radius: 2px;
+      background: oklch(55% 0.16 266);
+      transition: width 0.4s ease;
+    }
+
+    .refresh-indicator {
+      display: flex;
+      align-items: center;
+      gap: 6px;
+      font-size: var(--text-xs);
+      color: var(--text-tertiary);
+    }
+    .refresh-dot {
+      width: 7px; height: 7px;
+      border-radius: 50%;
+      background: oklch(65% 0.18 80);
+      flex-shrink: 0;
+    }
+    .refresh-dot.live {
+      background: oklch(62% 0.18 145);
+      animation: rd-pulse 2s ease-in-out infinite;
+    }
+    @keyframes rd-pulse { 0%,100%{opacity:.75;} 50%{opacity:1;} }
+
+    .cluster-summary {
+      display: flex;
+      gap: 20px;
+      margin-bottom: 20px;
+    }
+    .cluster-stat {
+      background: var(--bg-panel);
+      border: 1px solid var(--border);
+      border-radius: 8px;
+      padding: 12px 20px;
+      min-width: 100px;
+    }
+    .cluster-stat-value {
+      font-size: 24px;
+      font-weight: 700;
+      color: var(--text-primary);
+      line-height: 1;
+    }
+    .cluster-stat-label {
+      font-size: 10px;
+      font-weight: 500;
+      text-transform: uppercase;
+      letter-spacing: .08em;
+      color: var(--text-tertiary);
+      margin-top: 4px;
+    }
+  </style>
+</head>
+<body>
+<div class="shell">
+  <nav class="sidebar" aria-label="Main navigation">
+    <div class="sidebar-brand">
+      <img src="img/dragon-logo.png?v=1" alt="Wild Dragon" class="sidebar-logo">
+      <span class="sidebar-brand-name">Z-AMPP</span>
+    </div>
+    <nav class="sidebar-nav">
+      <a href="home.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><path d="M2 7l6-5 6 5v7a1 1 0 0 1-1 1h-3v-5H6v5H3a1 1 0 0 1-1-1z"/></svg>
+        Home
+      </a>
+      <a href="index.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><rect x="1" y="1" width="6" height="6" rx="1"/><rect x="9" y="1" width="6" height="6" rx="1"/><rect x="1" y="9" width="6" height="6" rx="1"/><rect x="9" y="9" width="6" height="6" rx="1"/></svg>
+        Library
+      </a>
+      <a href="projects.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><path d="M1 4a1 1 0 0 1 1-1h4l2 2h5a1 1 0 0 1 1 1v6a1 1 0 0 1-1 1H2a1 1 0 0 1-1-1z"/></svg>
+        Projects
+      </a>
+      <a href="upload.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><path d="M8 11V3M5 6l3-3 3 3"/><path d="M2 13h12"/></svg>
+        Ingest
+      </a>
+      <a href="recorders.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><rect x="1" y="4" width="10" height="8" rx="1"/><path d="M11 7l4-2v6l-4-2"/></svg>
+        Recorders
+      </a>
+      <a href="capture.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><circle cx="8" cy="8" r="3"/><circle cx="8" cy="8" r="6.5"/></svg>
+        Capture
+      </a>
+      <a href="jobs.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><path d="M2 4h12M2 8h8M2 12h5"/></svg>
+        Jobs
+      </a>
+      <a href="editor.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><path d="M2 13l1.5-3.5L11 2l3 3-7.5 7.5L3 14zM10 3l3 3"/></svg>
+        Editor
+      </a>
+      <div class="sidebar-section-label">Admin</div>
+      <a href="users.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><circle cx="6" cy="5" r="2.5"/><path d="M1 13c0-2.8 2.2-5 5-5s5 2.2 5 5"/><circle cx="12" cy="5" r="2"/><path d="M15 12c0-1.9-1.3-3.5-3-4"/></svg>
+        Users
+      </a>
+      <a href="tokens.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><circle cx="6" cy="10" r="3.5"/><path d="M8.7 7.3L13 3M11.5 3.5l1.5 1.5M13.5 2.5l1 1"/></svg>
+        Tokens
+      </a>
+      <a href="containers.html" class="nav-item">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><rect x="1" y="5" width="14" height="9" rx="1"/><path d="M1 5l2-3h10l2 3"/><line x1="5" y1="5" x2="5" y2="14"/><line x1="11" y1="5" x2="11" y2="14"/></svg>
+        Containers
+      </a>
+      <a href="cluster.html" class="nav-item active">
+        <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><circle cx="8" cy="3" r="2"/><circle cx="3" cy="13" r="2"/><circle cx="13" cy="13" r="2"/><line x1="8" y1="5" x2="8" y2="9"/><line x1="8" y1="9" x2="3" y2="11"/><line x1="8" y1="9" x2="13" y2="11"/></svg>
+        Cluster
+      </a>
+    </nav>
+    <div class="sidebar-footer">
+      <div class="sidebar-user">
+        <div class="sidebar-user-avatar" id="userAvatar">?</div>
+        <div class="sidebar-user-info">
+          <div class="sidebar-user-name" id="userName">&#8212;</div>
+          <div class="sidebar-user-role" id="userRole"></div>
+        </div>
+        <button class="btn btn-ghost" id="logoutBtn" style="padding:0;width:28px;height:28px;flex-shrink:0;" title="Sign out">
+          <svg viewBox="0 0 16 16" fill="none" stroke="currentColor" stroke-width="1.5"><path d="M6 2H3a1 1 0 0 0-1 1v10a1 1 0 0 0 1 1h3M11 11l3-3-3-3M6 8h8"/></svg>
+        </button>
+      </div>
+    </div>
+  </nav>
+
+  <div class="main">
+    <header class="topbar">
+      <div class="topbar-left">
+        <span class="page-title">Cluster</span>
+      </div>
+      <div class="topbar-right">
+        <div class="refresh-indicator">
+          <span class="refresh-dot" id="refreshDot"></span>
+          <span id="refreshText">Loading&hellip;</span>
+        </div>
+        <button class="btn btn-ghost btn-sm" id="refreshBtn" style="margin-left:8px;">Refresh</button>
+      </div>
+    </header>
+
+    <div class="page-body">
+      <div class="cluster-summary">
+        <div class="cluster-stat">
+          <div class="cluster-stat-value" id="statTotal">—</div>
+          <div class="cluster-stat-label">Total nodes</div>
+        </div>
+        <div class="cluster-stat">
+          <div class="cluster-stat-value" id="statOnline" style="color:oklch(62% 0.20 145);">—</div>
+          <div class="cluster-stat-label">Online</div>
+        </div>
+        <div class="cluster-stat">
+          <div class="cluster-stat-value" id="statOffline" style="color:oklch(55% 0.16 25);">—</div>
+          <div class="cluster-stat-label">Offline</div>
+        </div>
+      </div>
+
+      <table class="z-table">
+        <thead>
+          <tr>
+            <th style="width:16px"></th>
+            <th>Node</th>
+            <th>IP</th>
+            <th>Role</th>
+            <th>CPU</th>
+            <th>Memory</th>
+            <th>Version</th>
+            <th>Last seen</th>
+            <th style="text-align:right">Actions</th>
+          </tr>
+        </thead>
+        <tbody id="clusterBody">
+          <tr><td colspan="9" class="empty-row">Loading&hellip;</td></tr>
+        </tbody>
+      </table>
+    </div>
+  </div>
+</div>
+
+<div class="toast-container" id="toastContainer" aria-live="polite"></div>
+
+<script src="js/api.js?v=6"></script>
+<script>
+let nodes = [];
+
+async function loadNodes() {
+  try {
+    const r = await fetch('/api/v1/cluster', { credentials: 'include' });
+    if (!r.ok) throw new Error('HTTP ' + r.status);
+    nodes = await r.json();
+    renderNodes();
+    setDot('live', 'Live');
+  } catch (err) {
+    setDot('error', 'Error');
+    console.error('Cluster load failed:', err);
+  }
+}
+
+function statusClass(stale) {
+  if (stale < 60)  return 'online';
+  if (stale < 300) return 'warn';
+  return 'offline';
+}
+
+function relTime(isoStr) {
+  if (!isoStr) return '—';
+  const diff = (Date.now() - new Date(isoStr)) / 1000;
+  if (diff < 5)    return 'just now';
+  if (diff < 60)   return Math.round(diff) + 's ago';
+  if (diff < 3600) return Math.round(diff / 60) + 'm ago';
+  if (diff < 86400) return Math.round(diff / 3600) + 'h ago';
+  return Math.round(diff / 86400) + 'd ago';
+}
+
+function renderNodes() {
+  const tbody   = document.getElementById('clusterBody');
+  const online  = nodes.filter(n => Number(n.stale_seconds) < 120).length;
+  const offline = nodes.length - online;
+
+  document.getElementById('statTotal').textContent   = nodes.length;
+  document.getElementById('statOnline').textContent  = online;
+  document.getElementById('statOffline').textContent = offline;
+
+  if (!nodes.length) {
+    tbody.innerHTML = '<tr><td colspan="9" class="empty-row">No cluster nodes registered.</td></tr>';
+    return;
+  }
+
+  tbody.innerHTML = nodes.map(n => {
+    const stale   = Number(n.stale_seconds || 9999);
+    const sc      = statusClass(stale);
+    const memPct  = n.mem_total_mb ? Math.round((n.mem_used_mb / n.mem_total_mb) * 100) : 0;
+    const memTxt  = n.mem_total_mb
+      ? `${Math.round(n.mem_used_mb || 0)} / ${Math.round(n.mem_total_mb)} MB`
+      : '—';
+    const cpuTxt  = n.cpu_usage != null ? parseFloat(n.cpu_usage).toFixed(2) + '%' : '—';
+    const roleCls = n.role === 'primary' ? 'role-primary' : 'role-worker';
+
+    return `
+      <tr>
+        <td><span class="node-status-dot status-${sc}" title="${sc}"></span></td>
+        <td>
+          <div style="font-weight:500;color:var(--text-primary);">${esc(n.hostname)}</div>
+          ${n.api_url ? `<div style="font-size:10px;color:var(--text-tertiary);font-family:var(--font-mono);">${esc(n.api_url)}</div>` : ''}
+        </td>
+        <td style="font-family:var(--font-mono);font-size:11px;">${esc(n.ip_address || '—')}</td>
+        <td><span class="role-badge ${roleCls}">${esc(n.role)}</span></td>
+        <td style="font-family:var(--font-mono);font-size:11px;">${cpuTxt}</td>
+        <td>
+          <div style="font-size:11px;font-family:var(--font-mono);">${memTxt}</div>
+          ${n.mem_total_mb ? `<div class="mem-bar-wrap"><div class="mem-bar" style="width:${memPct}%"></div></div>` : ''}
+        </td>
+        <td style="font-family:var(--font-mono);font-size:11px;">${esc(n.version || '—')}</td>
+        <td style="font-size:11px;color:var(--text-tertiary);">${relTime(n.last_seen)}</td>
+        <td style="text-align:right">
+          <button class="btn btn-ghost btn-sm"
+            style="${n.role === 'primary' ? 'opacity:0.4;' : ''}"
+            onclick="removeNode('${esc(n.id)}','${esc(n.hostname)}',this)"
+            ${n.role === 'primary' ? 'title="Cannot remove the primary node"' : 'title="Remove node"'}>
+            Remove
+          </button>
+        </td>
+      </tr>`;
+  }).join('');
+}
+
+async function removeNode(id, hostname, btn) {
+  if (btn.disabled) return;
+  if (!confirm(`Remove node "${hostname}" from the cluster registry?`)) return;
+  btn.disabled = true;
+  try {
+    const r = await fetch(`/api/v1/cluster/${id}`, { method: 'DELETE', credentials: 'include' });
+    if (!r.ok) {
+      const j = await r.json().catch(() => ({}));
+      throw new Error(j.error || 'HTTP ' + r.status);
+    }
+    toast('Node removed', hostname, 'success');
+    await loadNodes();
+  } catch (err) {
+    toast('Remove failed', err.message, 'error');
+    btn.disabled = false;
+  }
+}
+
+function setDot(state, label) {
+  const dot = document.getElementById('refreshDot');
+  document.getElementById('refreshText').textContent = label;
+  dot.className = 'refresh-dot' + (state === 'live' ? ' live' : '');
+}
+
+function toast(title, msg, type) {
+  const el = document.createElement('div');
+  el.className = 'toast toast--' + (type || 'info');
+  el.innerHTML = '<div class="toast-body"><div class="toast-title">' + esc(title) + '</div>' +
+    (msg ? '<div class="toast-msg">' + esc(msg) + '</div>' : '') + '</div>';
+  document.getElementById('toastContainer').appendChild(el);
+  setTimeout(() => el.remove(), 4000);
+}
+
+function esc(s) {
+  if (s == null) return '';
+  return String(s).replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/"/g,'&quot;');
+}
+
+document.addEventListener('DOMContentLoaded', () => {
+  loadNodes();
+  setInterval(loadNodes, 30000);
+  // Update relative timestamps every minute without a full fetch
+  setInterval(() => { if (nodes.length) renderNodes(); }, 60000);
+  document.getElementById('refreshBtn').onclick = loadNodes;
+});
+</script>
+<script src="js/auth-guard.js"></script>
+</body>
+</html>
