diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/command/handler/CommandHandler.java b/LaunchServer/src/main/java/pro/gravit/launchserver/command/handler/CommandHandler.java
index 8402b32b..ab917f10 100644
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/command/handler/CommandHandler.java
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/command/handler/CommandHandler.java
@@ -84,7 +84,7 @@ public static void registerCommands(pro.gravit.utils.command.CommandHandler hand
         service.registerCommand("serverStatus", new ServerStatusCommand(server));
         service.registerCommand("checkInstall", new CheckInstallCommand(server));
         service.registerCommand("multi", new MultiCommand(server));
-        service.registerCommand("getModulus", new GetModulusCommand(server));
+        service.registerCommand("notify", new NotifyCommand(server));
         service.registerCommand("component", new ComponentCommand(server));
         service.registerCommand("givePermission", new GivePermissionsCommand(server));
         service.registerCommand("getPermissions", new GetPermissionsCommand(server));
diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/command/service/GetModulusCommand.java b/LaunchServer/src/main/java/pro/gravit/launchserver/command/service/GetModulusCommand.java
deleted file mode 100644
index f5e06ad4..00000000
--- a/LaunchServer/src/main/java/pro/gravit/launchserver/command/service/GetModulusCommand.java
+++ /dev/null
@@ -1,25 +0,0 @@
-package pro.gravit.launchserver.command.service;
-
-import pro.gravit.launchserver.LaunchServer;
-import pro.gravit.launchserver.command.Command;
-
-public class GetModulusCommand extends Command {
-    public GetModulusCommand(LaunchServer server) {
-        super(server);
-    }
-
-    @Override
-    public String getArgsDescription() {
-        return null;
-    }
-
-    @Override
-    public String getUsageDescription() {
-        return null;
-    }
-
-    @Override
-    public void invoke(String... args) {
-        //LogHelper.info("You publickey modulus: %s", server.publicKey.getModulus().toString(16));
-    }
-}
diff --git a/LaunchServer/src/main/java/pro/gravit/launchserver/command/service/NotifyCommand.java b/LaunchServer/src/main/java/pro/gravit/launchserver/command/service/NotifyCommand.java
new file mode 100644
index 00000000..bf14beeb
--- /dev/null
+++ b/LaunchServer/src/main/java/pro/gravit/launchserver/command/service/NotifyCommand.java
@@ -0,0 +1,31 @@
+package pro.gravit.launchserver.command.service;
+
+import pro.gravit.launcher.events.NotificationEvent;
+import pro.gravit.launcher.request.WebSocketEvent;
+import pro.gravit.launchserver.LaunchServer;
+import pro.gravit.launchserver.command.Command;
+import pro.gravit.launchserver.socket.WebSocketService;
+
+public class NotifyCommand extends Command {
+    public NotifyCommand(LaunchServer server) {
+        super(server);
+    }
+
+    @Override
+    public String getArgsDescription() {
+        return "[head] [message]";
+    }
+
+    @Override
+    public String getUsageDescription() {
+        return "send notification to all connected client";
+    }
+
+    @Override
+    public void invoke(String... args) throws Exception {
+        verifyArgs(args, 2);
+        NotificationEvent event = new NotificationEvent(args[0], args[1]);
+        WebSocketService service = server.nettyServerSocketHandler.nettyServer.service;
+        service.sendObjectAll(event, WebSocketEvent.class);
+    }
+}
diff --git a/LauncherAPI/src/main/java/pro/gravit/launcher/events/NotificationEvent.java b/LauncherAPI/src/main/java/pro/gravit/launcher/events/NotificationEvent.java
new file mode 100644
index 00000000..528b7eb1
--- /dev/null
+++ b/LauncherAPI/src/main/java/pro/gravit/launcher/events/NotificationEvent.java
@@ -0,0 +1,18 @@
+package pro.gravit.launcher.events;
+
+import pro.gravit.launcher.request.WebSocketEvent;
+
+public class NotificationEvent implements WebSocketEvent {
+    public final String head;
+    public final String message;
+
+    public NotificationEvent(String head, String message) {
+        this.head = head;
+        this.message = message;
+    }
+
+    @Override
+    public String getType() {
+        return "notification";
+    }
+}
diff --git a/LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/ClientWebSocketService.java b/LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/ClientWebSocketService.java
index 8aa7efe4..3b4afcbd 100644
--- a/LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/ClientWebSocketService.java
+++ b/LauncherAPI/src/main/java/pro/gravit/launcher/request/websockets/ClientWebSocketService.java
@@ -4,6 +4,7 @@
 import com.google.gson.GsonBuilder;
 import pro.gravit.launcher.Launcher;
 import pro.gravit.launcher.events.ExceptionEvent;
+import pro.gravit.launcher.events.NotificationEvent;
 import pro.gravit.launcher.events.request.*;
 import pro.gravit.launcher.hasher.HashedEntry;
 import pro.gravit.launcher.hasher.HashedEntryAdapter;
@@ -107,6 +108,7 @@ public void registerResults() {
         results.register("exception", ExceptionEvent.class);
         results.register("register", RegisterRequestEvent.class);
         results.register("setpassword", SetPasswordRequestEvent.class);
+        results.register("notification", NotificationEvent.class);
     }
 
     public void registerHandler(EventHandler eventHandler) {