diff --git a/api/api.proto b/api/api.proto
index f013096a0..fac89a567 100644
--- a/api/api.proto
+++ b/api/api.proto
@@ -685,6 +685,16 @@ service Wallet {
   rpc CreateShieldNullifier (NfParameters) returns (BytesMessage) {
   };
   // end for shiededTransaction
+
+  rpc GetRewardInfo (BytesMessage) returns (NumberMessage) {
+  };
+
+  rpc GetBrokerageInfo (BytesMessage) returns (NumberMessage) {
+  };
+
+  rpc UpdateBrokerage (UpdateBrokerageContract) returns (TransactionExtention) {
+
+  };
 };
 
 service WalletSolidity {
@@ -836,6 +846,11 @@ service WalletSolidity {
   rpc TriggerConstantContract (TriggerSmartContract) returns (TransactionExtention) {
   }
 
+  rpc GetRewardInfo (BytesMessage) returns (NumberMessage) {
+  };
+
+  rpc GetBrokerageInfo (BytesMessage) returns (NumberMessage) {
+  };
 
 };
 
diff --git a/core/Contract.proto b/core/Contract.proto
index bf8023c85..60f07fc07 100644
--- a/core/Contract.proto
+++ b/core/Contract.proto
@@ -335,3 +335,8 @@ message ShieldedTransferContract {
   int64 to_amount = 7; // the amount to transparent to_address
 }
 // end shielded transaction
+
+message UpdateBrokerageContract {
+  bytes owner_address = 1;
+  int32 brokerage = 2; // 1 mean 1%
+}
diff --git a/core/Tron.proto b/core/Tron.proto
index a60ef718d..d70672297 100644
--- a/core/Tron.proto
+++ b/core/Tron.proto
@@ -273,6 +273,7 @@ message Transaction {
       UpdateEnergyLimitContract = 45;
       AccountPermissionUpdateContract = 46;
       ClearABIContract = 48;
+      UpdateBrokerageContract = 49;
       ShieldedTransferContract = 51;
     }
     ContractType type = 1;