diff --git a/src/api/chats.js b/src/api/chats.js
index 67d2eabe5a..b465513abb 100644
--- a/src/api/chats.js
+++ b/src/api/chats.js
@@ -73,6 +73,17 @@ chatsAPI.rename = async (caller, data) => {
 	});
 };
 
+chatsAPI.mark = async (caller, data) => {
+	const { roomId, state } = data;
+	if (state) {
+		await messaging.markUnread([caller.uid], roomId);
+	} else {
+		await messaging.markRead(caller.uid, roomId);
+	}
+
+	return messaging.loadRoom(caller.uid, { roomId });
+};
+
 chatsAPI.users = async (caller, data) => {
 	const [isOwner, users] = await Promise.all([
 		messaging.isRoomOwner(caller.uid, data.roomId),
diff --git a/src/controllers/write/chats.js b/src/controllers/write/chats.js
index f009047a61..647e81525f 100644
--- a/src/controllers/write/chats.js
+++ b/src/controllers/write/chats.js
@@ -53,6 +53,17 @@ Chats.rename = async (req, res) => {
 	helpers.formatApiResponse(200, res, roomObj);
 };
 
+Chats.mark = async (req, res) => {
+	const state = req.method === 'PUT' ? 1 : 0;
+	const roomObj = await api.chats.mark(req, {
+		...req.body,
+		roomId: req.params.roomId,
+		state,
+	});
+
+	helpers.formatApiResponse(200, res, roomObj);
+};
+
 Chats.users = async (req, res) => {
 	const users = await api.chats.users(req, {
 		...req.params,
diff --git a/src/routes/write/chats.js b/src/routes/write/chats.js
index 1e5d870ca5..a92db701f7 100644
--- a/src/routes/write/chats.js
+++ b/src/routes/write/chats.js
@@ -19,6 +19,9 @@ module.exports = function () {
 	setupApiRoute(router, 'put', '/:roomId', [...middlewares, middleware.assert.room, middleware.checkRequired.bind(null, ['name'])], controllers.write.chats.rename);
 	// no route for room deletion, noted here just in case...
 
+	setupApiRoute(router, 'put', '/:roomId/state', [...middlewares, middleware.assert.room], controllers.write.chats.mark);
+	setupApiRoute(router, 'delete', '/:roomId/state', [...middlewares, middleware.assert.room], controllers.write.chats.mark);
+
 	setupApiRoute(router, 'get', '/:roomId/users', [...middlewares, middleware.assert.room], controllers.write.chats.users);
 	setupApiRoute(router, 'post', '/:roomId/users', [...middlewares, middleware.assert.room, middleware.checkRequired.bind(null, ['uids'])], controllers.write.chats.invite);
 	setupApiRoute(router, 'delete', '/:roomId/users', [...middlewares, middleware.assert.room, middleware.checkRequired.bind(null, ['uids'])], controllers.write.chats.kick);