diff --git a/apps/meteor/app/livechat/server/hooks/checkMAC.ts b/apps/meteor/app/livechat/server/hooks/checkMAC.ts
new file mode 100644
index 0000000000000..56d5b26a15980
--- /dev/null
+++ b/apps/meteor/app/livechat/server/hooks/checkMAC.ts
@@ -0,0 +1,25 @@
+import { Omnichannel } from '@rocket.chat/core-services';
+import { isEditedMessage } from '@rocket.chat/core-typings';
+
+import { callbacks } from '../../../../lib/callbacks';
+
+callbacks.add('beforeSaveMessage', async (message, room) => {
+	if (!room || room.t !== 'l') {
+		return message;
+	}
+
+	if (isEditedMessage(message)) {
+		return message;
+	}
+
+	if (message.token) {
+		return message;
+	}
+
+	const canSendMessage = await Omnichannel.isRoomEnabled(room);
+	if (!canSendMessage) {
+		throw new Error('error-mac-limit-reached');
+	}
+
+	return message;
+});
diff --git a/apps/meteor/app/livechat/server/index.ts b/apps/meteor/app/livechat/server/index.ts
index 7d91679669531..b6f4e98af6dbb 100644
--- a/apps/meteor/app/livechat/server/index.ts
+++ b/apps/meteor/app/livechat/server/index.ts
@@ -16,6 +16,7 @@ import './hooks/saveContactLastChat';
 import './hooks/saveLastMessageToInquiry';
 import './hooks/afterUserActions';
 import './hooks/afterAgentRemoved';
+import './hooks/checkMAC';
 import './methods/addAgent';
 import './methods/addManager';
 import './methods/changeLivechatStatus';
diff --git a/packages/rest-typings/src/v1/omnichannel.ts b/packages/rest-typings/src/v1/omnichannel.ts
index bebea2856861f..98091043ff568 100644
--- a/packages/rest-typings/src/v1/omnichannel.ts
+++ b/packages/rest-typings/src/v1/omnichannel.ts
@@ -3699,6 +3699,9 @@ export type OmnichannelEndpoints = {
 			value: string | number;
 		}[];
 	};
+	'/v1/omnichannel/mac/check': {
+		GET: () => { onLimit: boolean };
+	};
 } & {
 	// EE
 	'/v1/livechat/analytics/agents/average-service-time': {