diff --git a/proto/protobuf/rpc/error.proto b/proto/protobuf/rpc/error.proto
index 049dc3d..cd8bcea 100644
--- a/proto/protobuf/rpc/error.proto
+++ b/proto/protobuf/rpc/error.proto
@@ -15,3 +15,24 @@ message Error {
   optional string message = 2;
   optional bytes data = 3;
 }
+
+enum InvalidParamsType {
+  DATE_TIME = 0;
+  DECIMAL = 1;
+  EQUALS_TO = 2;
+  FLOAT = 3;
+  INTEGER = 4;
+  RANGE = 5;
+  REG_EX = 6;
+  REQUIRED = 7;
+  STRING_LENGTH = 8;
+  URL = 9;
+}
+
+message InvalidParamsDetail {
+  string location = 1;
+  string param = 2;
+  string value = 3;
+  InvalidParamsType error_type = 4;
+  string message = 5;
+}