diff --git a/moderation.proto b/moderation.proto
new file mode 100644
index 0000000..5fcb4f3
--- /dev/null
+++ b/moderation.proto
@@ -0,0 +1,24 @@
+syntax = "proto3";
+
+package moderation;
+
+service ModerationService {
+  rpc ModerateObject(ModerateObjectRequest) returns (ModerateObjectResponse);
+}
+
+message ModerateObjectRequest {
+  int64 id = 1;
+  ObjectType type = 2;
+  string text = 3;
+}
+
+message ModerateObjectResponse {
+  bool success = 1;
+}
+
+enum ObjectType {
+  OBJECT_TYPE_UNSPECIFIED = 0;
+  OBJECT_TYPE_MOD_DESCRIPTION = 1;
+  OBJECT_TYPE_COMMENT_TEXT = 2;
+  OBJECT_TYPE_USER_NAME = 3;
+}