diff --git a/package.json b/package.json
index 6c325b1d534bda20150dbec564b38a4dc30aacc7..034304c8037f28a2f9e4e07e0cca1eb8596bd41c 100644
--- a/package.json
+++ b/package.json
@@ -5,10 +5,8 @@
   "main": "dist/src/index.js",
   "typings": "dist/src/index.d.ts",
   "wechaty": {
-    "DEFAULT_HEAD": 0,
     "DEFAULT_PORT": 8080,
     "DEFAULT_PROTOCOL": "io|0.0.1",
-    "DEFAULT_TOKEN": "WECHATY_IO_TOKEN",
     "DEFAULT_APIHOST": "api.chatie.io"
   },
   "scripts": {
@@ -52,6 +50,9 @@
   },
   "keywords": [
     "wechat",
+    "rpa",
+    "conversational",
+    "ai",
     "微信",
     "weixin",
     "personal",
@@ -73,7 +74,7 @@
   "bugs": {
     "url": "https://github.com/wechaty/wechaty/issues"
   },
-  "homepage": "https://chatie.io/wechaty/",
+  "homepage": "https://github.com/wechaty/",
   "engines": {
     "node": ">= 10"
   },
@@ -92,12 +93,12 @@
     "pkg-dir": "^4.0.0",
     "portfinder": "^1.0.17",
     "promise-retry": "^1.1.1",
-    "qr-image": "^3.2.0",
     "raven": "^2.6.2",
     "read-pkg-up": "^7.0.0",
     "state-switch": "^0.6.2",
     "watchdog": "^0.8.1",
     "wechaty-puppet": "^0.19.6",
+    "wechaty-puppet-hostie": "^0.3.8",
     "ws": "^7.0.0"
   },
   "devDependencies": {
@@ -117,7 +118,6 @@
     "@types/node": "^12.12.3",
     "@types/open-graph": "^0.2.0",
     "@types/promise-retry": "^1.1.3",
-    "@types/qr-image": "^3.2.1",
     "@types/raven": "^2.1.0",
     "@types/request": "^2.47.1",
     "@types/retry": "^0.12.0",
diff --git a/src/io-client.ts b/src/io-client.ts
index c743f231b274a6cbcbe99c1e136892ebfb53bdbe..4c6c9d5b74ed87dc25ac1e03e1dbd4b56f463607 100644
--- a/src/io-client.ts
+++ b/src/io-client.ts
@@ -22,6 +22,9 @@
  */
 import { StateSwitch }  from 'state-switch'
 
+import { PuppetHostieServer } from 'wechaty-puppet-hostie'
+import { PuppetHostieGrpcServerOptions } from 'wechaty-puppet-hostie/dist/src/grpc/puppet-server'
+
 import { Message }      from './user'
 
 import {
@@ -37,7 +40,12 @@ export interface IoClientOptions {
 
 export class IoClient {
 
-  private io: Io // XXX keep io `null-able` or not? 20161026
+  /**
+   * Huan(20161026): keep io `null-able` or not?
+   * Huan(202002): make it optional.
+   */
+  private io?: Io
+  private hostieServer?: PuppetHostieServer
 
   private state: StateSwitch
 
@@ -47,12 +55,33 @@ export class IoClient {
     log.verbose('IoClient', 'constructor(%s)', JSON.stringify(options))
 
     this.state = new StateSwitch('IoClient', log)
+  }
 
-    this.io = new Io({
-      token   : this.options.token,
-      wechaty : this.options.wechaty,
-    })
+  private async startHostie () {
+    log.verbose('IoClient', 'startHostie()')
+
+    if (this.hostieServer) {
+      throw new Error('hostie server exists')
+    }
+
+    const options: PuppetHostieGrpcServerOptions = {
+      endpoint : '0.0.0.0:8788',
+      puppet   : this.options.wechaty.puppet,
+      token    : this.options.token,
+    }
+    this.hostieServer = new PuppetHostieServer(options)
+    await this.hostieServer.start()
+  }
+
+  private async stopHostie () {
+    log.verbose('IoClient', 'stopHostie()')
+
+    if (!this.hostieServer) {
+      throw new Error('hostie server does not exist')
+    }
 
+    await this.hostieServer.stop()
+    this.hostieServer = undefined
   }
 
   public async start (): Promise<void> {
@@ -67,9 +96,10 @@ export class IoClient {
     this.state.on('pending')
 
     try {
+      await this.hookWechaty(this.options.wechaty)
 
       await this.startIo()
-      await this.hookWechaty(this.options.wechaty)
+      await this.startHostie()
 
       this.state.on(true)
 
@@ -105,6 +135,15 @@ export class IoClient {
       throw e
     }
 
+    if (this.io) {
+      throw new Error('io exists')
+    }
+
+    this.io = new Io({
+      token   : this.options.token,
+      wechaty : this.options.wechaty,
+    })
+
     try {
       await this.io.start()
     } catch (e) {
@@ -113,6 +152,18 @@ export class IoClient {
     }
   }
 
+  private async stopIo () {
+    log.verbose('IoClient', 'stopIo()')
+
+    if (!this.io) {
+      log.warn('IoClient', 'stopIo() io does not exist')
+      return
+    }
+
+    await this.io.stop()
+    this.io = undefined
+  }
+
   private async onMessage (msg: Message) {
     log.verbose('IoClient', 'onMessage(%s)', msg)
 
@@ -138,14 +189,9 @@ export class IoClient {
 
     this.state.off('pending')
 
-    // XXX
-    if (!this.io) {
-      log.warn('IoClient', 'stop() without this.io')
-      this.state.off(true)
-      return
-    }
+    await this.stopIo()
+    await this.stopHostie()
 
-    await this.io.stop()
     this.state.off(true)
 
     // XXX 20161026
diff --git a/src/puppet-config.ts b/src/puppet-config.ts
index c4353ee3cf930fdf48590f90e589878355fa5150..76bed2f27d25154fd4c293b688125825f244d8e6 100644
--- a/src/puppet-config.ts
+++ b/src/puppet-config.ts
@@ -14,6 +14,7 @@ export const PUPPET_DEPENDENCIES = {
   // 'wechaty-puppet-hostie'    : '^0.0.1',
 
   // 'wechaty-puppet-dll'       : '^0.3.1',    // https://www.npmjs.com/package/wechaty-puppet-dll
+  'wechaty-puppet-hostie'    : '^0.3.8',    // https://www.npmjs.com/package/wechaty-puppet-hostie
   // 'wechaty-puppet-ioscat'    : '^0.5.22',   // https://www.npmjs.com/package/wechaty-puppet-ioscat
   'wechaty-puppet-mock'      : '^0.16.1',   // https://www.npmjs.com/package/wechaty-puppet-mock
   // 'wechaty-puppet-padchat'   : '^0.19.3',   // https://www.npmjs.com/package/wechaty-puppet-padchat