diff --git a/README.md b/README.md
index 865eacd..f3750f6 100644
--- a/README.md
+++ b/README.md
@@ -1,19 +1,42 @@
 # oicq-guild
 
-In development
+[oicq](https://github.com/takayama-lily/oicq) guild plugin
+
+**Install:**
 
 ```bash
-# edit test.js with your account and password
-npm i typescript -g
-npm i
-npm test
+npm i oicq-guild
 ```
 
-**how to clear the slider:**
+**Usage:**
 
-<https://github.com/takayama-lily/oicq/wiki/01.使用密码登录-(滑动验证码教程)>
+```js
+const { createClient } = require("oicq")
+const { GuildApp } = require("oicq-guild")
+
+// input with your account and password
+const account = 0
+const password = ""
+
+// create oicq client
+const client = createClient(account)
+client.login(password)
+
+// create guild app and bind it to an oicq client
+const app = GuildApp.bind(client)
 
-**how to analyze the hex:**
+app.on("ready", function () {
+  console.log("My guild list:")
+  console.log(this.guilds)
+})
 
-<https://wife.awa.moe/unpack-tools/> or  
-<https://protobuf-decoder.netlify.app/>
+app.on("message", e => {
+  console.log(e)
+  if (e.raw_message === "hello")
+    e.reply(`Hello, ${e.sender.nickname}!`)
+})
+```
+
+**how to clear the slider captcha:**
+
+<https://github.com/takayama-lily/oicq/wiki/01.使用密码登录-(滑动验证码教程)>
diff --git a/demo/login.js b/demo/login.js
new file mode 100644
index 0000000..eccd8d8
--- /dev/null
+++ b/demo/login.js
@@ -0,0 +1,25 @@
+"use strict"
+const { createClient } = require("oicq")
+const { GuildApp } = require("../lib/index")
+
+const account = 0
+const password = ""
+
+const client = createClient(account)
+client.on("system.login.slider", function (e) {
+	console.log("input ticket：")
+	process.stdin.once("data", ticket => this.submitSlider(String(ticket).trim()))
+}).login(password)
+
+const app = GuildApp.bind(client)
+
+app.on("ready", function () {
+	console.log("My guild list:")
+	console.log(this.guilds)
+})
+
+app.on("message", e => {
+	console.log(e)
+	if (e.raw_message === "hello")
+		e.reply(`Hello, ${e.sender.nickname}!`)
+})
diff --git a/lib/app.ts b/lib/app.ts
new file mode 100644
index 0000000..7c77dfc
--- /dev/null
+++ b/lib/app.ts
@@ -0,0 +1,89 @@
+import EventEmitter from "events"
+import { Client, ApiRejection } from "oicq"
+import { pb } from "oicq/lib/core"
+import { lock, NOOP, log } from "oicq/lib/common"
+import { onFirstView, onGroupProMsg } from "./internal"
+import { Guild } from "./guild"
+import { GuildMessage } from "./message"
+
+declare module "oicq" {
+	export interface Client {
+		sendOidbSvcTrpcTcp: (cmd: string, body: Uint8Array) => Promise<pb.Proto>
+	}
+}
+
+Client.prototype.sendOidbSvcTrpcTcp = async function (cmd: string, body: Uint8Array) {
+	const sp = cmd //OidbSvcTrpcTcp.0xf5b_1
+		.replace("OidbSvcTrpcTcp.", "")
+		.split("_");
+	const type1 = parseInt(sp[0], 16), type2 = parseInt(sp[1]);
+	body = pb.encode({
+		1: type1,
+		2: type2,
+		4: body,
+		6: "android " + this.apk.ver,
+	})
+	const payload = await this.sendUni(cmd, body)
+	log(payload)
+	const rsp = pb.decode(payload)
+	if (rsp[3] === 0) return rsp[4]
+	throw new ApiRejection(rsp[3], rsp[5])
+}
+
+export interface GuildApp {
+	on(event: "ready", listener: (this: this) => void): this;
+	on(event: "message", listener: (this: this, e: GuildMessage) => void): this;
+	once(event: "ready", listener: (this: this) => void): this;
+	once(event: "message", listener: (this: this, e: GuildMessage) => void): this;
+	off(event: "ready", listener: (this: this) => void): this;
+	off(event: "message", listener: (this: this, e: GuildMessage) => void): this;
+}
+
+/** 获取应用程序入口 */
+export class GuildApp extends EventEmitter {
+
+	protected readonly c: Client
+
+	/** 我的频道id */
+	tiny_id = ""
+
+	/** 我加入的频道列表 */
+	guilds = new Map<string, Guild>()
+
+	/** 获得所属的客户端对象 */
+	get client() {
+		return this.c
+	}
+
+	protected constructor(client: Client) {
+		super()
+		client.on("internal.sso", (cmd: string, payload: Buffer) => {
+			if (cmd === "trpc.group_pro.synclogic.SyncLogic.PushFirstView")
+				onFirstView.call(this, payload)
+			else if (cmd === "MsgPush.PushGroupProMsg")
+				onGroupProMsg.call(this, payload)
+		})
+		client.on("system.online", _ => this.tiny_id = client.tiny_id)
+		this.c = client
+		lock(this, "c")
+	}
+
+	/** 绑定QQ客户端 */
+	static bind(client: Client) {
+		return new GuildApp(client)
+	}
+
+	/** 重新加载频道列表 */
+	reloadGuilds(): Promise<void> {
+		this.c.sendUni("trpc.group_pro.synclogic.SyncLogic.SyncFirstView", pb.encode({ 1: 0, 2: 0, 3: 0 })).then(payload => {
+			this.tiny_id = String(pb.decode(payload)[6])
+		}).catch(NOOP)
+		return new Promise((resolve, reject) => {
+			const id = setTimeout(reject, 5000)
+			this.once("ready", () => {
+				clearTimeout(id)
+				resolve()
+			})
+		})
+	}
+}
diff --git a/lib/channel.ts b/lib/channel.ts
new file mode 100644
index 0000000..487c2b2
--- /dev/null
+++ b/lib/channel.ts
@@ -0,0 +1,83 @@
+import { randomBytes } from "crypto"
+import { pb } from "oicq/lib/core"
+import { lock } from "oicq/lib/common"
+import { Sendable, Converter } from "oicq/lib/message"
+import { ApiRejection } from "oicq"
+import { Guild } from "./guild"
+
+export enum NotifyType {
+	Unknown = 0,
+	AllMessages = 1,
+	Nothing = 2,
+}
+
+export enum ChannelType {
+	Unknown = 0,
+	Text = 1,
+	Voice = 2,
+	Live = 5,
+	App = 6,
+	Forum = 7,
+}
+
+export class Channel {
+
+	channel_name = ""
+	channel_type = ChannelType.Unknown
+	notify_type = NotifyType.Unknown
+
+	constructor(public readonly guild: Guild, public readonly channel_id: string) {
+		lock(this, "guild")
+		lock(this, "channel_id")
+	}
+
+	_renew(channel_name: string, notify_type: NotifyType, channel_type: ChannelType) {
+		this.channel_name = channel_name
+		this.notify_type = notify_type
+		this.channel_type = channel_type
+	}
+
+	/**
+	 * 发送频道消息
+	 * 暂时仅支持发送： 文本、AT、表情
+	 */
+	async sendMessage(content: Sendable): Promise<{ seq: number, rand: number, time: number}> {
+		const payload = await this.guild.app.client.sendUni("MsgProxy.SendMsg", pb.encode({
+			1: {
+				1: {
+					1: {
+						1: BigInt(this.guild.guild_id),
+						2: Number(this.channel_id),
+						3: this.guild.app.client.uin
+					},
+					2: {
+						1: 3840,
+						3: randomBytes(4).readUInt32BE()
+					}
+				},
+				3: {
+					1: new Converter(content).rich
+				}
+			}
+		}))
+		const rsp = pb.decode(payload)
+		if (rsp[1])
+			throw new ApiRejection(rsp[1], rsp[2])
+		return {
+			seq: rsp[4][2][4],
+			rand: rsp[4][2][3],
+			time: rsp[4][2][6],
+		}
+	}
+
+	/** 撤回频道消息 */
+	async recallMessage(seq: number): Promise<boolean> {
+		const body = pb.encode({
+			1: BigInt(this.guild.guild_id),
+			2: Number(this.channel_id),
+			3: Number(seq)
+		})
+		await this.guild.app.client.sendOidbSvcTrpcTcp("OidbSvcTrpcTcp.0xf5e_1", body)
+		return true
+	}
+}
diff --git a/lib/guild.ts b/lib/guild.ts
new file mode 100644
index 0000000..6eaaa53
--- /dev/null
+++ b/lib/guild.ts
@@ -0,0 +1,103 @@
+import { pb } from "oicq/lib/core"
+import { lock } from "oicq/lib/common"
+import { GuildApp } from "./app"
+import { Channel} from "./channel"
+
+export enum GuildRole {
+	Member = 1,
+	GuildAdmin = 2,
+	Owner = 4,
+	ChannelAdmin = 5,
+}
+
+export interface GuildMember {
+	tiny_id: string
+	card: string
+	nickname: string
+	role: GuildRole
+	join_time: number
+}
+
+const members4buf = pb.encode({
+	1: 1,
+	2: 1,
+	3: 1,
+	4: 1,
+	5: 1,
+	6: 1,
+	7: 1,
+	8: 1,
+})
+
+export class Guild {
+
+	guild_name = ""
+	channels = new Map<string, Channel>()
+
+	constructor(public readonly app: GuildApp, public readonly guild_id: string) {
+		lock(this, "app")
+		lock(this, "guild_id")
+	}
+
+	_renew(guild_name: string, proto: pb.Proto | pb.Proto[]) {
+		this.guild_name = guild_name
+		if (!Array.isArray(proto))
+			proto = [proto]
+		const tmp = new Set<string>()
+		for (const p of proto) {
+			const id = String(p[1]), name = String(p[8]),
+				notify_type = p[7], channel_type = p[9]
+			tmp.add(id)
+			if (!this.channels.has(id))
+				this.channels.set(id, new Channel(this, id))
+			const channel = this.channels.get(id)!
+			channel._renew(name, notify_type, channel_type)
+		}
+		for (let [id, _] of this.channels) {
+			if (!tmp.has(id))
+				this.channels.delete(id)
+		}
+	}
+
+	/** 获取频道成员列表 */
+	async getMemberList() {
+		let index = 0 // todo member count over 500
+		const body = pb.encode({
+			1: BigInt(this.guild_id),
+			2: 3,
+			3: 0,
+			4: members4buf,
+			6: index,
+			8: 500,
+			14: 2,
+		})
+		const rsp = await this.app.client.sendOidbSvcTrpcTcp("OidbSvcTrpcTcp.0xf5b_1", body)
+		const list: GuildMember[] = []
+		const members = Array.isArray(rsp[5]) ? rsp[5] : [rsp[5]]
+		const admins = Array.isArray(rsp[25]) ? rsp[25] : [rsp[25]]
+		for (const p of admins) {
+			const role = p[1] as GuildRole
+			const m = Array.isArray(p[2]) ? p[2] : [p[2]]
+			for (const p2 of m) {
+				list.push({
+					tiny_id: String(p2[8]),
+					card: String(p2[2]),
+					nickname: String(p2[3]),
+					role,
+					join_time: p2[4],
+				})
+			}
+			
+		}
+		for (const p of members) {
+			list.push({
+				tiny_id: String(p[8]),
+				card: String(p[2]),
+				nickname: String(p[3]),
+				role: GuildRole.Member,
+				join_time: p[4],
+			})
+		}
+		return list
+	}
+}
diff --git a/lib/index.ts b/lib/index.ts
index e69de29..844f95b 100644
--- a/lib/index.ts
+++ b/lib/index.ts
@@ -0,0 +1,3 @@
+export { GuildApp } from "./app"
+export { Guild, GuildRole, GuildMember } from "./guild"
+export { Channel, NotifyType, ChannelType } from "./channel"
diff --git a/lib/internal.ts b/lib/internal.ts
new file mode 100644
index 0000000..8d51251
--- /dev/null
+++ b/lib/internal.ts
@@ -0,0 +1,38 @@
+import { GuildApp } from "./app"
+import { pb } from "oicq/lib/core"
+import { Guild } from "./guild"
+import { GuildMessage } from "./message"
+
+export function onFirstView(this: GuildApp, payload: Buffer) {
+	const proto = pb.decode(payload)
+	if (!proto[3]) return
+	if (!Array.isArray(proto[3])) proto[3] = [proto[3]]
+	const tmp = new Set<string>()
+	for (let p of proto[3]) {
+		const id = String(p[1]), name = String(p[4])
+		tmp.add(id)
+		if (!this.guilds.has(id))
+			this.guilds.set(id, new Guild(this, id))
+		const guild = this.guilds.get(id)!
+		guild._renew(name, p[3])
+	}
+	for (let [id, _] of this.guilds) {
+		if (!tmp.has(id))
+			this.guilds.delete(id)
+	}
+	this.client.logger.mark(`[Guild] 加载了${this.guilds.size}个频道`)
+	this.emit("ready")
+}
+
+export function onGroupProMsg(this: GuildApp, payload: Buffer) {
+	try {
+		var msg = new GuildMessage(pb.decode(payload))
+	} catch {
+		return
+	}
+	this.client.logger.info(`[Guild: ${msg.guild_name}, Member: ${msg.sender.nickname}]` + msg.raw_message)
+	const channel = this.guilds.get(msg.guild_id)?.channels.get(msg.channel_id)
+	if (channel)
+		msg.reply = channel.sendMessage.bind(channel)
+	this.emit("message", msg)
+}
diff --git a/lib/message.ts b/lib/message.ts
new file mode 100644
index 0000000..44f2673
--- /dev/null
+++ b/lib/message.ts
@@ -0,0 +1,52 @@
+import { MessageElem, ApiRejection } from "oicq"
+import { pb } from "oicq/lib/core"
+import { parse, Sendable } from "oicq/lib/message"
+import { lock } from "oicq/lib/common"
+
+export class GuildMessage {
+	/** 频道id */
+	guild_id: string
+	guild_name: string
+	/** 子频道id */
+	channel_id: string
+	channel_name: string
+	/** 消息序号(同一子频道中一般顺序递增) */
+	seq: number
+	rand: number
+	time: number
+	message: MessageElem[]
+	raw_message: string
+	sender: {
+		tiny_id: string
+		nickname: string
+	}
+
+	constructor(proto: pb.Proto) {
+		const head1 = proto[1][1][1]
+		const head2 = proto[1][1][2]
+		if (head2[1] !== 3840)
+			throw new Error("unsupport guild message type")
+		const body = proto[1][3]
+		const extra = proto[1][4]
+		this.guild_id = String(head1[1])
+		this.channel_id = String(head1[2])
+		this.guild_name = String(extra[2])
+		this.channel_name = String(extra[3])
+		this.sender = {
+			tiny_id: String(head1[4]),
+			nickname: String(extra[1])
+		}
+		this.seq = head2[4]
+		this.rand = head2[3]
+		this.time = head2[6]
+		const parsed = parse(body[1])
+		this.message = parsed.message
+		this.raw_message = parsed.brief
+		lock(this, "proto")
+	}
+
+	/** 暂时仅支持发送： 文本、AT、表情 */
+	async reply(content: Sendable): Promise<{ seq: number, rand: number, time: number }> {
+		throw new ApiRejection(-999999, "no channel")
+	}
+}
diff --git a/package.json b/package.json
index d22af35..f6b2213 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "oicq-guild",
-  "version": "0.0.0",
+  "version": "0.1.0",
   "description": "guild plugin for oicq",
   "main": "lib/index.js",
   "typings": "lib/index.d.ts",
@@ -11,6 +11,13 @@
     "oicq": "^2.2.2"
   },
   "scripts": {
-    "test": "node test.js"
-  }
+    "test": "tsc && node test.js"
+  },
+  "devDependencies": {
+    "@types/node": "^17.0.31"
+  },
+  "files": [
+    "lib/**/*.js",
+    "lib/**/*.d.ts"
+  ]
 }
diff --git a/test.js b/test.js
index c1d43fa..a097c02 100644
--- a/test.js
+++ b/test.js
@@ -1,9 +1,10 @@
 "use strict"
 const { createClient } = require("oicq")
 const { log } = require("oicq/lib/common")
+const { GuildApp } = require("./lib/index")
 
-const account = 0
-const password = "******"
+const account = Number(process.env.OICQ_GUILD_ACCOUNT)
+const password = process.env.OICQ_GUILD_PASSWORD
 
 const client = createClient(account, {
 	log_level: "warn",
@@ -15,22 +16,14 @@ client.on("system.login.slider", function (e) {
 	process.stdin.once("data", _ => this.login())
 }).login(password)
 
-const known = [
-	"OnlinePush.PbPushGroupMsg",
-	"OnlinePush.PbPushDisMsg",
-	"OnlinePush.ReqPush",
-	"OnlinePush.PbPushTransMsg",
-	"OnlinePush.PbC2CMsgSync",
-	"MessageSvc.PushNotify",
-	"MessageSvc.PushReaded",
-	"ConfigPushSvc.PushDomain",
-	"ConfigPushSvc.PushReq",
-	"QualityTest.PushList",
-]
+const app = GuildApp.bind(client)
 
-client.on("internal.sso", function (cmd, payload) {
-	if (known.includes(cmd)) return
-	console.log("received:", cmd)
-	log(payload)
-	console.log("")
+process.stdin.on("data", async (data) => {
+	const cmd = String(data).trim()
+	try {
+		const res = await eval(cmd)
+		console.log(res)
+	} catch (e) {
+		console.log(e)
+	}
 })