diff --git a/internal/api/msg.go b/internal/api/msg.go
index 7a38068a4..271cde349 100644
--- a/internal/api/msg.go
+++ b/internal/api/msg.go
@@ -467,6 +467,10 @@ func (m *MessageApi) SendSimpleMessage(c *gin.Context) {
 		sessionType int32
 		recvID      string
 	)
+	if err = c.BindJSON(&req); err != nil {
+		apiresp.GinError(c, errs.ErrArgs.WithDetail(err.Error()).Wrap())
+		return
+	}
 	err = json.Unmarshal(decodedData, &keyMsgData)
 	if err != nil {
 		apiresp.GinError(c, errs.ErrArgs.WithDetail(err.Error()).Wrap())
diff --git a/internal/api/router.go b/internal/api/router.go
index 7c2c78c7d..ac7edb24d 100644
--- a/internal/api/router.go
+++ b/internal/api/router.go
@@ -253,6 +253,7 @@ func newGinRouter(ctx context.Context, client discovery.Conn, cfg *Config) (*gin
 		msgGroup.POST("/delete_msg_physical", m.DeleteMsgPhysical)
 
 		msgGroup.POST("/batch_send_msg", m.BatchSendMsg)
+		msgGroup.POST("/send_simple_msg", m.SendSimpleMessage)
 		msgGroup.POST("/check_msg_is_send_success", m.CheckMsgIsSendSuccess)
 		msgGroup.POST("/get_server_time", m.GetServerTime)
 	}