diff --git a/app/public/robots.txt b/app/public/robots.txt
index f6e6d1d4..4baa86ee 100644
--- a/app/public/robots.txt
+++ b/app/public/robots.txt
@@ -1,2 +1,3 @@
 User-Agent: *
 Allow: /
+Disallow: /admin/
diff --git a/app/src/components/app/MenuBar.tsx b/app/src/components/app/MenuBar.tsx
index dbf43196..2daa5b5c 100644
--- a/app/src/components/app/MenuBar.tsx
+++ b/app/src/components/app/MenuBar.tsx
@@ -18,12 +18,13 @@ import {
   BadgeCent,
   Boxes,
   CalendarPlus,
-  Cloud,
+  Cloud, Gift,
   ListStart,
   Plug,
 } from "lucide-react";
 import { openDialog as openSub } from "../../store/subscription.ts";
 import { openDialog as openPackageDialog } from "../../store/package.ts";
+import { openDialog as openInvitationDialog } from "../../store/invitation.ts";
 import { openDialog as openSharingDialog } from "../../store/sharing.ts";
 import { openDialog as openApiDialog } from "../../store/api.ts";
 
@@ -60,6 +61,10 @@ function MenuBar({ children, className }: MenuBarProps) {
           <Boxes className={`h-4 w-4 mr-1`} />
           {t("pkg.title")}
         </DropdownMenuItem>
+        <DropdownMenuItem onClick={() => dispatch(openInvitationDialog())}>
+          <Gift className={`h-4 w-4 mr-1`} />
+          {t("invitation.title")}
+        </DropdownMenuItem>
         <DropdownMenuItem onClick={() => dispatch(openSharingDialog())}>
           <ListStart className={`h-4 w-4 mr-1`} />
           {t("share.manage")}
diff --git a/app/src/conf.ts b/app/src/conf.ts
index c8521b57..73a04d1d 100644
--- a/app/src/conf.ts
+++ b/app/src/conf.ts
@@ -1,7 +1,7 @@
 import axios from "axios";
 import { Model } from "./conversation/types.ts";
 
-export const version = "3.5.9";
+export const version = "3.5.10";
 export const dev: boolean = window.location.hostname === "localhost";
 export const deploy: boolean = true;
 export let rest_api: string = "http://localhost:8094";
diff --git a/app/src/conversation/invitation.ts b/app/src/conversation/invitation.ts
new file mode 100644
index 00000000..2c531d11
--- /dev/null
+++ b/app/src/conversation/invitation.ts
@@ -0,0 +1,17 @@
+import axios from "axios";
+
+export type InvitationResponse = {
+  status: boolean;
+  error: string;
+  quota: number;
+}
+
+export async function getInvitation(code: string): Promise<InvitationResponse> {
+  try {
+    const resp = await axios.get(`/invite?code=${code}`);
+    return resp.data as InvitationResponse;
+  } catch (e) {
+    console.debug(e);
+    return { status: false, error: "network error", quota: 0 };
+  }
+}
diff --git a/app/src/dialogs/ApiKey.tsx b/app/src/dialogs/ApiKey.tsx
index 71dec299..3a565144 100644
--- a/app/src/dialogs/ApiKey.tsx
+++ b/app/src/dialogs/ApiKey.tsx
@@ -23,7 +23,7 @@ import { useToast } from "../components/ui/use-toast.ts";
 import { copyClipboard, useEffectAsync } from "../utils.ts";
 import { selectInit } from "../store/auth.ts";
 
-function Package() {
+function ApiKey() {
   const { t } = useTranslation();
   const dispatch = useDispatch();
   const open = useSelector(dialogSelector);
@@ -75,4 +75,4 @@ function Package() {
   );
 }
 
-export default Package;
+export default ApiKey;
diff --git a/app/src/dialogs/Invitation.tsx b/app/src/dialogs/Invitation.tsx
index e69de29b..8e62a5e2 100644
--- a/app/src/dialogs/Invitation.tsx
+++ b/app/src/dialogs/Invitation.tsx
@@ -0,0 +1,69 @@
+import {
+  Dialog,
+  DialogContent,
+  DialogDescription,
+  DialogFooter,
+  DialogHeader,
+  DialogTitle,
+} from "../components/ui/dialog.tsx";
+import { Button } from "../components/ui/button.tsx";
+import { useTranslation } from "react-i18next";
+import { useDispatch, useSelector } from "react-redux";
+import {
+  closeDialog,
+  dialogSelector,
+  setDialog,
+} from "../store/invitation.ts";
+import { Input } from "../components/ui/input.tsx";
+import { useToast } from "../components/ui/use-toast.ts";
+import {useState} from "react";
+import {getInvitation} from "../conversation/invitation.ts";
+
+function Invitation() {
+  const { t } = useTranslation();
+  const dispatch = useDispatch();
+  const open = useSelector(dialogSelector);
+  const { toast } = useToast();
+  const [code, setCode] = useState("");
+
+  return (
+    <Dialog open={open} onOpenChange={(open) => dispatch(setDialog(open))}>
+      <DialogContent>
+        <DialogHeader>
+          <DialogTitle>{t("invitation.title")}</DialogTitle>
+          <DialogDescription>
+            <Input
+              value={code}
+              placeholder={t("invitation.input-placeholder")}
+              className={`w-full mt-6 text-center`}
+              onChange={(e) => setCode(e.target.value)}
+            />
+          </DialogDescription>
+        </DialogHeader>
+        <DialogFooter>
+          <Button variant={`outline`} onClick={() => dispatch(closeDialog())}>
+            {t("invitation.cancel")}
+          </Button>
+          <Button onClick={async () => {
+            const resp = await getInvitation(code.trim());
+            if (resp.status) {
+              toast({
+                title: t("invitation.check-success"),
+                description: t("invitation.check-success-description", { amount: resp.quota }),
+              })
+              dispatch(closeDialog());
+            }
+            else toast({
+              title: t("invitation.check-failed"),
+              description: resp.error,
+            })
+          }}>
+            {t("invitation.check")}
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}
+
+export default Invitation;
diff --git a/app/src/dialogs/index.tsx b/app/src/dialogs/index.tsx
index d8195084..cb89d569 100644
--- a/app/src/dialogs/index.tsx
+++ b/app/src/dialogs/index.tsx
@@ -4,6 +4,7 @@ import ApiKey from "./ApiKey.tsx";
 import Package from "./Package.tsx";
 import Subscription from "./Subscription.tsx";
 import ShareManagement from "./ShareManagement.tsx";
+import Invitation from "./Invitation.tsx";
 
 function DialogManager() {
   return (
@@ -14,6 +15,7 @@ function DialogManager() {
       <Package />
       <Subscription />
       <ShareManagement />
+      <Invitation />
     </>
   );
 }
diff --git a/app/src/store/index.ts b/app/src/store/index.ts
index d558532f..1fae2fbb 100644
--- a/app/src/store/index.ts
+++ b/app/src/store/index.ts
@@ -7,6 +7,7 @@ import packageReducer from "./package";
 import subscriptionReducer from "./subscription";
 import apiReducer from "./api";
 import sharingReducer from "./sharing";
+import invitationReducer from "./invitation";
 
 const store = configureStore({
   reducer: {
@@ -18,6 +19,7 @@ const store = configureStore({
     subscription: subscriptionReducer,
     api: apiReducer,
     sharing: sharingReducer,
+    invitation: invitationReducer,
   },
 });
 
diff --git a/app/src/store/invitation.ts b/app/src/store/invitation.ts
new file mode 100644
index 00000000..117b063f
--- /dev/null
+++ b/app/src/store/invitation.ts
@@ -0,0 +1,28 @@
+import {createSlice} from "@reduxjs/toolkit";
+import {RootState} from "./index.ts";
+
+export const invitationSlice = createSlice({
+  name: "invitation",
+  initialState: {
+    dialog: false,
+  },
+  reducers: {
+    toggleDialog: (state) => {
+      state.dialog = !state.dialog;
+    },
+    setDialog: (state, action) => {
+      state.dialog = action.payload as boolean;
+    },
+    openDialog: (state) => {
+      state.dialog = true;
+    },
+    closeDialog: (state) => {
+      state.dialog = false;
+    },
+  }
+});
+
+export const {toggleDialog, setDialog, openDialog, closeDialog} = invitationSlice.actions;
+export default invitationSlice.reducer;
+
+export const dialogSelector = (state: RootState): boolean => state.invitation.dialog;
diff --git a/auth/invitation.go b/auth/invitation.go
index 4c277c8a..e81db5ed 100644
--- a/auth/invitation.go
+++ b/auth/invitation.go
@@ -16,12 +16,12 @@ type Invitation struct {
 	UsedId int64   `json:"used_id"`
 }
 
-func GenerateCodes(db *sql.DB, num int, quota float32, t string) ([]string, error) {
+func GenerateInvitations(db *sql.DB, num int, quota float32, t string) ([]string, error) {
 	arr := make([]string, 0)
 	idx := 0
 	for idx < num {
 		code := fmt.Sprintf("%s-%s", t, utils.GenerateChar(24))
-		if err := GenerateCode(db, code, quota, t); err != nil {
+		if err := CreateInvitationCode(db, code, quota, t); err != nil {
 			// unique constraint
 			if errors.Is(err, sql.ErrNoRows) {
 				continue
@@ -35,7 +35,7 @@ func GenerateCodes(db *sql.DB, num int, quota float32, t string) ([]string, erro
 	return arr, nil
 }
 
-func GenerateCode(db *sql.DB, code string, quota float32, t string) error {
+func CreateInvitationCode(db *sql.DB, code string, quota float32, t string) error {
 	_, err := db.Exec(`
 		INSERT INTO invitation (code, quota, type)
 		VALUES (?, ?, ?)
@@ -50,7 +50,11 @@ func GetInvitation(db *sql.DB, code string) (*Invitation, error) {
 		WHERE code = ?
 	`, code)
 	var invitation Invitation
-	err := row.Scan(&invitation.Id, &invitation.Code, &invitation.Quota, &invitation.Type, &invitation.Used, &invitation.UsedId)
+	var id sql.NullInt64
+	err := row.Scan(&invitation.Id, &invitation.Code, &invitation.Quota, &invitation.Type, &invitation.Used, &id)
+	if id.Valid {
+		invitation.UsedId = id.Int64
+	}
 	if err != nil {
 		if errors.Is(err, sql.ErrNoRows) {
 			return nil, fmt.Errorf("invitation code not found")
@@ -83,6 +87,8 @@ func (i *Invitation) UseInvitation(db *sql.DB, user User) error {
 	if err := i.Use(db, user.GetID(db)); err != nil {
 		if errors.Is(err, sql.ErrNoRows) {
 			return fmt.Errorf("invitation code not found")
+		} else if errors.Is(err, sql.ErrTxDone) {
+			return fmt.Errorf("transaction has been closed")
 		}
 		return fmt.Errorf("failed to use invitation: %w", err)
 	}
diff --git a/cli/exec.go b/cli/exec.go
new file mode 100644
index 00000000..6a33a7af
--- /dev/null
+++ b/cli/exec.go
@@ -0,0 +1,19 @@
+package cli
+
+func Run() bool {
+	args := GetArgs()
+	if len(args) == 0 {
+		return false
+	}
+
+	switch args[0] {
+	case "help":
+		Help()
+		return true
+	case "invite":
+		CreateInvitationCommand(args[1:])
+		return true
+	default:
+		return false
+	}
+}
diff --git a/cli/help.go b/cli/help.go
new file mode 100644
index 00000000..378f92c9
--- /dev/null
+++ b/cli/help.go
@@ -0,0 +1,13 @@
+package cli
+
+import "fmt"
+
+var Prompt = `
+Commands:
+	- help
+	- invite <type> <num> <quota>
+`
+
+func Help() {
+	fmt.Println(fmt.Sprintf("%s", Prompt))
+}
diff --git a/cli/invite.go b/cli/invite.go
new file mode 100644
index 00000000..a09b791e
--- /dev/null
+++ b/cli/invite.go
@@ -0,0 +1,25 @@
+package cli
+
+import (
+	"chat/auth"
+	"chat/connection"
+	"fmt"
+	"strings"
+)
+
+func CreateInvitationCommand(args []string) {
+	db := connection.ConnectMySQL()
+
+	var (
+		t     = GetArgString(args, 0)
+		num   = GetArgInt(args, 1)
+		quota = GetArgFloat32(args, 2)
+	)
+
+	resp, err := auth.GenerateInvitations(db, num, quota, t)
+	if err != nil {
+		panic(err)
+	}
+
+	fmt.Println(strings.Join(resp, "\n"))
+}
diff --git a/cli/parser.go b/cli/parser.go
new file mode 100644
index 00000000..3258f2fe
--- /dev/null
+++ b/cli/parser.go
@@ -0,0 +1,63 @@
+package cli
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"strconv"
+)
+
+func GetArgs() []string {
+	return os.Args[1:]
+}
+
+func GetArg(args []string, idx int) string {
+	if len(args) <= idx {
+		log.Fatalln(fmt.Sprintf("not enough arguments: %d", idx))
+	}
+	return args[idx]
+}
+
+func GetArgInt(args []string, idx int) int {
+	i, err := strconv.Atoi(GetArg(args, idx))
+	if err != nil {
+		log.Fatalln(fmt.Sprintf("invalid argument: %s", err.Error()))
+	}
+	return i
+}
+
+func GetArgFloat(args []string, idx int, bitSize int) float64 {
+	f, err := strconv.ParseFloat(GetArg(args, idx), bitSize)
+	if err != nil {
+		log.Fatalln(fmt.Sprintf("invalid argument: %s", err.Error()))
+	}
+	return f
+}
+
+func GetArgFloat32(args []string, idx int) float32 {
+	return float32(GetArgFloat(args, idx, 32))
+}
+
+func GetArgFloat64(args []string, idx int) float64 {
+	return GetArgFloat(args, idx, 64)
+}
+
+func GetArgBool(args []string, idx int) bool {
+	b, err := strconv.ParseBool(GetArg(args, idx))
+	if err != nil {
+		log.Fatalln(fmt.Sprintf("invalid argument: %s", err.Error()))
+	}
+	return b
+}
+
+func GetArgInt64(args []string, idx int) int64 {
+	i, err := strconv.ParseInt(GetArg(args, idx), 10, 64)
+	if err != nil {
+		log.Fatalln(fmt.Sprintf("invalid argument: %s", err.Error()))
+	}
+	return i
+}
+
+func GetArgString(args []string, idx int) string {
+	return GetArg(args, idx)
+}
diff --git a/main.go b/main.go
index 8aa75050..caaca276 100644
--- a/main.go
+++ b/main.go
@@ -3,6 +3,7 @@ package main
 import (
 	"chat/addition"
 	"chat/auth"
+	"chat/cli"
 	"chat/manager"
 	"chat/manager/conversation"
 	"chat/middleware"
@@ -17,6 +18,9 @@ func main() {
 	if err := viper.ReadInConfig(); err != nil {
 		panic(err)
 	}
+	if cli.Run() {
+		return
+	}
 
 	app := gin.Default()
 	middleware.RegisterMiddleware(app)