diff --git a/electron/api/routes/gateway.ts b/electron/api/routes/gateway.ts
index 530e030d8..4f00dbcec 100644
--- a/electron/api/routes/gateway.ts
+++ b/electron/api/routes/gateway.ts
@@ -1,5 +1,6 @@
 import type { IncomingMessage, ServerResponse } from 'http';
 import { PORTS } from '../../utils/config';
+import { buildOpenClawControlUiUrl } from '../../utils/openclaw-control-ui';
 import { getSetting } from '../../utils/store';
 import type { HostApiContext } from '../context';
 import { parseJsonBody, sendJson } from '../route-utils';
@@ -68,7 +69,7 @@ export async function handleGatewayRoutes(
       const status = ctx.gatewayManager.getStatus();
       const token = await getSetting('gatewayToken');
       const port = status.port || PORTS.OPENCLAW_GATEWAY;
-      const urlValue = `http://127.0.0.1:${port}/?token=${encodeURIComponent(token)}`;
+      const urlValue = buildOpenClawControlUiUrl(port, token);
       sendJson(res, 200, { success: true, url: urlValue, token, port });
     } catch (error) {
       sendJson(res, 500, { success: false, error: String(error) });
diff --git a/electron/main/ipc-handlers.ts b/electron/main/ipc-handlers.ts
index dc855c583..49664a049 100644
--- a/electron/main/ipc-handlers.ts
+++ b/electron/main/ipc-handlers.ts
@@ -19,6 +19,7 @@ import {
   saveProviderKeyToOpenClaw,
   removeProviderFromOpenClaw,
 } from '../utils/openclaw-auth';
+import { buildOpenClawControlUiUrl } from '../utils/openclaw-control-ui';
 import { logger } from '../utils/logger';
 import {
   saveChannelConfig,
@@ -1283,8 +1284,7 @@ function registerGatewayHandlers(
       const status = gatewayManager.getStatus();
       const token = await getSetting('gatewayToken');
       const port = status.port || 18789;
-      // Pass token as query param - Control UI will store it in localStorage
-      const url = `http://127.0.0.1:${port}/?token=${encodeURIComponent(token)}`;
+      const url = buildOpenClawControlUiUrl(port, token);
       return { success: true, url, port, token };
     } catch (error) {
       return { success: false, error: String(error) };
diff --git a/electron/utils/openclaw-control-ui.ts b/electron/utils/openclaw-control-ui.ts
new file mode 100644
index 000000000..11cffdbf8
--- /dev/null
+++ b/electron/utils/openclaw-control-ui.ts
@@ -0,0 +1,17 @@
+/**
+ * Build the external OpenClaw Control UI URL.
+ *
+ * OpenClaw 2026.3.13 imports one-time auth tokens from the URL fragment
+ * (`#token=...`) and strips them after load. Query-string tokens are removed
+ * by the UI bootstrap but are not imported for auth.
+ */
+export function buildOpenClawControlUiUrl(port: number, token: string): string {
+  const url = new URL(`http://127.0.0.1:${port}/`);
+  const trimmedToken = token.trim();
+
+  if (trimmedToken) {
+    url.hash = new URLSearchParams({ token: trimmedToken }).toString();
+  }
+
+  return url.toString();
+}
diff --git a/package.json b/package.json
index 35cf2c1ce..a9e0333eb 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "clawx",
-    "version": "0.2.3-beta.2",
+    "version": "0.2.3-beta.3",
     "pnpm": {
         "onlyBuiltDependencies": [
             "@discordjs/opus",
@@ -120,4 +120,4 @@
         "zx": "^8.8.5"
     },
     "packageManager": "pnpm@10.31.0+sha512.e3927388bfaa8078ceb79b748ffc1e8274e84d75163e67bc22e06c0d3aed43dd153151cbf11d7f8301ff4acb98c68bdc5cadf6989532801ffafe3b3e4a63c268"
-}
\ No newline at end of file
+}
diff --git a/tests/unit/openclaw-control-ui.test.ts b/tests/unit/openclaw-control-ui.test.ts
new file mode 100644
index 000000000..2a641ca78
--- /dev/null
+++ b/tests/unit/openclaw-control-ui.test.ts
@@ -0,0 +1,15 @@
+import { describe, expect, it } from 'vitest';
+
+import { buildOpenClawControlUiUrl } from '@electron/utils/openclaw-control-ui';
+
+describe('buildOpenClawControlUiUrl', () => {
+  it('uses the URL fragment for one-time token bootstrap', () => {
+    expect(buildOpenClawControlUiUrl(18789, 'clawx-test-token')).toBe(
+      'http://127.0.0.1:18789/#token=clawx-test-token',
+    );
+  });
+
+  it('omits the fragment when the token is blank', () => {
+    expect(buildOpenClawControlUiUrl(18789, '   ')).toBe('http://127.0.0.1:18789/');
+  });
+});