diff --git a/client-api/src/main/java/ru/dragonestia/picker/api/model/room/IRoom.java b/client-api/src/main/java/ru/dragonestia/picker/api/model/room/IRoom.java
new file mode 100644
index 0000000..6e92a7a
--- /dev/null
+++ b/client-api/src/main/java/ru/dragonestia/picker/api/model/room/IRoom.java
@@ -0,0 +1,4 @@
+package ru.dragonestia.picker.api.model.room;
+
+public interface IRoom {
+}
diff --git a/client-api/src/main/java/ru/dragonestia/picker/api/model/user/IUser.java b/client-api/src/main/java/ru/dragonestia/picker/api/model/user/IUser.java
new file mode 100644
index 0000000..5279b5d
--- /dev/null
+++ b/client-api/src/main/java/ru/dragonestia/picker/api/model/user/IUser.java
@@ -0,0 +1,4 @@
+package ru.dragonestia.picker.api.model.user;
+
+public interface IUser {
+}