diff --git a/internal/config/system_settings.go b/internal/config/system_settings.go
index 10e73af..673b053 100644
--- a/internal/config/system_settings.go
+++ b/internal/config/system_settings.go
@@ -2,6 +2,7 @@ package config
 
 import (
 	"fmt"
+	"os"
 	"gpt-load/internal/db"
 	"gpt-load/internal/models"
 	"reflect"
@@ -18,7 +19,8 @@ import (
 // 使用结构体标签作为唯一事实来源
 type SystemSettings struct {
 	// 基础参数
-	BlacklistThreshold      int `json:"blacklist_threshold" default:"1" name:"黑名单阈值" category:"基础参数" desc:"一个 Key 连续失败多少次后进入黑名单" validate:"min=0"`
+	AppUrl                  string `json:"app_url" default:"" name:"项目地址" category:"基础参数" desc:"项目的基础 URL，用于拼接分组终端节点地址。系统配置优先于环境变量 APP_URL。"`
+	BlacklistThreshold      int    `json:"blacklist_threshold" default:"1" name:"黑名单阈值" category:"基础参数" desc:"一个 Key 连续失败多少次后进入黑名单" validate:"min=0"`
 	MaxRetries              int `json:"max_retries" default:"3" name:"最大重试次数" category:"基础参数" desc:"单个请求使用不同 Key 的最大重试次数" validate:"min=0"`
 	RequestLogRetentionDays int `json:"request_log_retention_days" default:"30" name:"日志保留天数" category:"基础参数" desc:"请求日志在数据库中的保留天数" validate:"min=1"`
 
@@ -137,9 +139,26 @@ func (sm *SystemSettingsManager) InitializeSystemSettings() error {
 		var existing models.SystemSetting
 		err := db.DB.Where("setting_key = ?", meta.Key).First(&existing).Error
 		if err != nil { // Not found
+			value := fmt.Sprintf("%v", meta.DefaultValue)
+			if meta.Key == "app_url" {
+				// Special handling for app_url initialization
+				if appURL := os.Getenv("APP_URL"); appURL != "" {
+					value = appURL
+				} else {
+					host := os.Getenv("HOST")
+					if host == "" || host == "0.0.0.0" {
+						host = "localhost"
+					}
+					port := os.Getenv("PORT")
+					if port == "" {
+						port = "3000"
+					}
+					value = fmt.Sprintf("http://%s:%s", host, port)
+				}
+			}
 			setting := models.SystemSetting{
 				SettingKey:   meta.Key,
-				SettingValue: fmt.Sprintf("%v", meta.DefaultValue),
+				SettingValue: value,
 				Description:  meta.Description,
 			}
 			if err := db.DB.Create(&setting).Error; err != nil {
@@ -190,6 +209,21 @@ func (sm *SystemSettingsManager) GetSettings() SystemSettings {
 	return sm.settings
 }
 
+// GetAppUrl returns the effective App URL.
+// It prioritizes the value from system settings (database) over the APP_URL environment variable.
+func (sm *SystemSettingsManager) GetAppUrl() string {
+	sm.mu.RLock()
+	defer sm.mu.RUnlock()
+
+	// 1. 优先级: 数据库中的系统配置
+	if sm.settings.AppUrl != "" {
+		return sm.settings.AppUrl
+	}
+
+	// 2. 回退: 环境变量
+	return os.Getenv("APP_URL")
+}
+
 // UpdateSettings 更新系统配置
 func (sm *SystemSettingsManager) UpdateSettings(settingsMap map[string]any) error {
 	if db.DB == nil {
@@ -332,6 +366,7 @@ func (sm *SystemSettingsManager) DisplayCurrentSettings() {
 	defer sm.mu.RUnlock()
 
 	logrus.Info("Current System Settings:")
+	logrus.Infof("   App URL: %s", sm.settings.AppUrl)
 	logrus.Infof("   Blacklist threshold: %d", sm.settings.BlacklistThreshold)
 	logrus.Infof("   Max retries: %d", sm.settings.MaxRetries)
 	logrus.Infof("   Server timeouts: read=%ds, write=%ds, idle=%ds, shutdown=%ds",
diff --git a/internal/handler/group_handler.go b/internal/handler/group_handler.go
index 373a50a..e02278f 100644
--- a/internal/handler/group_handler.go
+++ b/internal/handler/group_handler.go
@@ -4,6 +4,7 @@ package handler
 import (
 	"encoding/json"
 	"fmt"
+	"net/url"
 
 	"gpt-load/internal/config"
 	app_errors "gpt-load/internal/errors"
@@ -208,7 +209,7 @@ func (s *Server) CreateGroup(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, newGroupResponse(&group))
+	response.Success(c, s.newGroupResponse(&group))
 }
 
 // ListGroups handles listing all groups.
@@ -220,8 +221,8 @@ func (s *Server) ListGroups(c *gin.Context) {
 	}
 
 	var groupResponses []GroupResponse
-	for _, group := range groups {
-		groupResponses = append(groupResponses, *newGroupResponse(&group))
+	for i := range groups {
+		groupResponses = append(groupResponses, *s.newGroupResponse(&groups[i]))
 	}
 
 	response.Success(c, groupResponses)
@@ -339,13 +340,14 @@ func (s *Server) UpdateGroup(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, newGroupResponse(&group))
+	response.Success(c, s.newGroupResponse(&group))
 }
 
 // GroupResponse defines the structure for a group response, excluding sensitive or large fields.
 type GroupResponse struct {
 	ID             uint              `json:"id"`
 	Name           string            `json:"name"`
+	Endpoint       string            `json:"endpoint"`
 	DisplayName    string            `json:"display_name"`
 	Description    string            `json:"description"`
 	Upstreams      datatypes.JSON    `json:"upstreams"`
@@ -360,10 +362,21 @@ type GroupResponse struct {
 }
 
 // newGroupResponse creates a new GroupResponse from a models.Group.
-func newGroupResponse(group *models.Group) *GroupResponse {
+func (s *Server) newGroupResponse(group *models.Group) *GroupResponse {
+	appURL := s.SettingsManager.GetAppUrl()
+	endpoint := ""
+	if appURL != "" {
+		u, err := url.Parse(appURL)
+		if err == nil {
+			u.Path = strings.TrimRight(u.Path, "/") + "/proxy/" + group.Name
+			endpoint = u.String()
+		}
+	}
+
 	return &GroupResponse{
 		ID:              group.ID,
 		Name:            group.Name,
+		Endpoint:        endpoint,
 		DisplayName:     group.DisplayName,
 		Description:     group.Description,
 		Upstreams:       group.Upstreams,
diff --git a/internal/models/types.go b/internal/models/types.go
index 6193f91..550afc0 100644
--- a/internal/models/types.go
+++ b/internal/models/types.go
@@ -34,6 +34,7 @@ type GroupConfig struct {
 type Group struct {
 	ID              uint              `gorm:"primaryKey;autoIncrement" json:"id"`
 	Name            string            `gorm:"type:varchar(255);not null;unique" json:"name"`
+	Endpoint        string            `gorm:"-" json:"endpoint"`
 	DisplayName     string            `gorm:"type:varchar(255)" json:"display_name"`
 	Description     string            `gorm:"type:varchar(512)" json:"description"`
 	Upstreams       datatypes.JSON    `gorm:"type:json;not null" json:"upstreams"`