diff --git a/client-api/src/main/java/ru/dragonestia/picker/api/model/node/ResponseNode.java b/client-api/src/main/java/ru/dragonestia/picker/api/model/node/ResponseNode.java
index c0e8fb9..7bd573c 100644
--- a/client-api/src/main/java/ru/dragonestia/picker/api/model/node/ResponseNode.java
+++ b/client-api/src/main/java/ru/dragonestia/picker/api/model/node/ResponseNode.java
@@ -1,6 +1,7 @@
 package ru.dragonestia.picker.api.model.node;
 
 import io.swagger.v3.oas.annotations.media.Schema;
+import org.jetbrains.annotations.ApiStatus.Internal;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 
@@ -20,6 +21,7 @@ public class ResponseNode implements INode {
     @Schema(description = "Additional data requested (Key-Value)")
     private Map<NodeDetails, String> details;
 
+    @Internal
     public ResponseNode() {}
 
     public ResponseNode(@NotNull String id, @NotNull PickingMethod pickingMethod) {
diff --git a/client-api/src/main/java/ru/dragonestia/picker/api/model/room/ResponseRoom.java b/client-api/src/main/java/ru/dragonestia/picker/api/model/room/ResponseRoom.java
index c18beec..e822ee0 100644
--- a/client-api/src/main/java/ru/dragonestia/picker/api/model/room/ResponseRoom.java
+++ b/client-api/src/main/java/ru/dragonestia/picker/api/model/room/ResponseRoom.java
@@ -1,6 +1,7 @@
 package ru.dragonestia.picker.api.model.room;
 
 import io.swagger.v3.oas.annotations.media.Schema;
+import org.jetbrains.annotations.ApiStatus.Internal;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import ru.dragonestia.picker.api.repository.type.RoomPath;
@@ -30,6 +31,7 @@ public class ResponseRoom implements IRoom {
     @Schema(description = "Additional data requested (Key-Value)")
     private Map<RoomDetails, String> details;
 
+    @Internal
     public ResponseRoom() {}
 
     public ResponseRoom(@NotNull String id, @NotNull String nodeId, int slots, boolean locked, @NotNull String payload) {
diff --git a/client-api/src/main/java/ru/dragonestia/picker/api/model/room/ShortResponseRoom.java b/client-api/src/main/java/ru/dragonestia/picker/api/model/room/ShortResponseRoom.java
index 202c66c..caaa0d8 100644
--- a/client-api/src/main/java/ru/dragonestia/picker/api/model/room/ShortResponseRoom.java
+++ b/client-api/src/main/java/ru/dragonestia/picker/api/model/room/ShortResponseRoom.java
@@ -1,6 +1,7 @@
 package ru.dragonestia.picker.api.model.room;
 
 import io.swagger.v3.oas.annotations.media.Schema;
+import org.jetbrains.annotations.ApiStatus.Internal;
 import org.jetbrains.annotations.NotNull;
 import org.jetbrains.annotations.Nullable;
 import ru.dragonestia.picker.api.repository.type.RoomPath;
@@ -27,6 +28,7 @@ public class ShortResponseRoom implements IRoom {
     @Schema(description = "Additional data requested (Key-Value)")
     private Map<RoomDetails, String> details;
 
+    @Internal
     public ShortResponseRoom() {}
 
     public ShortResponseRoom(String id, String nodeId, int slots, boolean locked) {