diff --git a/homebridge-ui/src/env.d.ts b/homebridge-ui/src/env.d.ts
index 8ca39c8..33eacbc 100644
--- a/homebridge-ui/src/env.d.ts
+++ b/homebridge-ui/src/env.d.ts
@@ -1,2 +1,3 @@
 /// <reference types='@modern-js/module-tools/types' />
-/// <reference types="@homebridge/plugin-ui-utils/dist/ui.interface" />
\ No newline at end of file
+/// <reference types="@homebridge/plugin-ui-utils/dist/ui.interface" />
+/// <reference path="../../src/types.d.ts" />
\ No newline at end of file
diff --git a/homebridge-ui/src/server.ts b/homebridge-ui/src/server.ts
index 55a51e5..9be16eb 100644
--- a/homebridge-ui/src/server.ts
+++ b/homebridge-ui/src/server.ts
@@ -1,8 +1,18 @@
 import { HomebridgePluginUiServer } from '@homebridge/plugin-ui-utils';
+import { AqaraApi, AqaraApiOption } from "@api/index";
 
 class UiServer extends HomebridgePluginUiServer {
     constructor() {
         super()
+
+        this.onRequest('/device', this.getAuthCode.bind(this));
+
+        this.ready();
+    }
+
+    getAuthCode(config: AqaraApiOption) {
+        const aqaraApi = new AqaraApi(config);
+        return aqaraApi.getAuthCode();
     }
 }
 
diff --git a/homebridge-ui/tsconfig.json b/homebridge-ui/tsconfig.json
index 9c92322..3463382 100644
--- a/homebridge-ui/tsconfig.json
+++ b/homebridge-ui/tsconfig.json
@@ -11,7 +11,8 @@
     "lib": ["DOM", "ESNext"],
     "moduleResolution": "node",
     "paths": {
-      "@/*": ["./src/*"]
+      "@/*": ["./src/*"],
+      "@api/*": ["../src/api/*"],
     },
     "resolveJsonModule": true,
     "rootDir": "src",
diff --git a/src/api/index.ts b/src/api/index.ts
index 3b2f364..631b4cf 100644
--- a/src/api/index.ts
+++ b/src/api/index.ts
@@ -1,11 +1,9 @@
 import axios, { AxiosInstance } from 'axios';
 import { createHash } from 'crypto';
 
-export interface AqaraApiOption {
-    region: 'cn' | 'us' | 'kr' | 'ru' | 'eu' | 'sg';
-    appId: string;
-    appKey: string;
-    keyId: string;
+
+export interface AqaraApiOption extends Aqara.AppConfig {
+  region: 'cn' | 'us' | 'kr' | 'ru' | 'eu' | 'sg';
 }
 
 const API_DOMAIN = {
@@ -37,7 +35,7 @@ export class AqaraApi {
     });
   }
 
-  sign(accessToken?: string) {
+  private sign(accessToken?: string) {
     const { appId, keyId, appKey } = this.option;
     const nonce = Math.random().toString(36).slice(2);
     const timestamp = Date.now();
@@ -54,4 +52,16 @@ export class AqaraApi {
       sign,
     };
   }
+
+  async getAuthCode() {
+    const { data } = await this.axios.post('/', {
+      "intent": "config.auth.getAuthCode",
+      "data": {
+        "account": "189000123456",
+        "accountType": 0,
+        "accessTokenValidity": "1h"
+      }
+    });
+    return data;
+  }
 }
\ No newline at end of file
diff --git a/src/types.d.ts b/src/types.d.ts
new file mode 100644
index 0000000..113b257
--- /dev/null
+++ b/src/types.d.ts
@@ -0,0 +1,7 @@
+declare namespace Aqara {
+    interface AppConfig {
+        appId: string;
+        appKey: string;
+        keyId: string;
+    }
+}
\ No newline at end of file