diff --git a/Sources/Core/Methods/RequestAccountMethod.swift b/Sources/Core/Methods/RequestAccountMethod.swift
index 1f88e43..d610030 100644
--- a/Sources/Core/Methods/RequestAccountMethod.swift
+++ b/Sources/Core/Methods/RequestAccountMethod.swift
@@ -39,7 +39,7 @@ public struct RequestAccountMethod: CallbackMethod {
               var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: true) else {
             return nil
         }
-        var queryItems = URLEncoding.queryItems(
+        var queryItems = URLEncoding.queryGeneralItems(
             appId: appId,
             requestId: id.uuidString,
             blockchain: blockchain
diff --git a/Sources/Core/Models/QueryName.swift b/Sources/Core/Models/QueryName.swift
index b2d601c..84044e4 100644
--- a/Sources/Core/Models/QueryName.swift
+++ b/Sources/Core/Models/QueryName.swift
@@ -40,4 +40,6 @@ public enum QueryName: String {
 
     // error
     case error
+
+    case platform
 }
diff --git a/Sources/Core/Utilities/URLEncoding.swift b/Sources/Core/Utilities/URLEncoding.swift
index 10bb9e2..5f03723 100644
--- a/Sources/Core/Utilities/URLEncoding.swift
+++ b/Sources/Core/Utilities/URLEncoding.swift
@@ -9,15 +9,19 @@ import Foundation
 
 public enum URLEncoding {
 
-    static func queryItems(
+    static func queryGeneralItems(
         appId: String,
         requestId: String,
         blockchain: Blockchain
     ) -> [QueryItem] {
+
+        let platform: String = "sdk_ios"
+
         let queryItems = [
             QueryItem(name: .appId, value: appId),
             QueryItem(name: .requestId, value: requestId),
             QueryItem(name: .blockchain, value: blockchain.rawValue),
+            QueryItem(name: .platform, value: platform)
         ]
         return queryItems
     }
diff --git a/Sources/EVMBase/Methods/SendEVMBasedTransactionMethod.swift b/Sources/EVMBase/Methods/SendEVMBasedTransactionMethod.swift
index 5242620..1574a9e 100644
--- a/Sources/EVMBase/Methods/SendEVMBasedTransactionMethod.swift
+++ b/Sources/EVMBase/Methods/SendEVMBasedTransactionMethod.swift
@@ -40,7 +40,7 @@ public struct SendEVMBasedTransactionMethod: CallbackMethod {
               var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: true) else {
             return nil
         }
-        var queryItems = URLEncoding.queryItems(
+        var queryItems = URLEncoding.queryGeneralItems(
             appId: appId,
             requestId: id.uuidString,
             blockchain: blockchain
diff --git a/Sources/EVMBase/Methods/SignEVMBaseMessageMethod.swift b/Sources/EVMBase/Methods/SignEVMBaseMessageMethod.swift
index b2ca575..104b5f9 100644
--- a/Sources/EVMBase/Methods/SignEVMBaseMessageMethod.swift
+++ b/Sources/EVMBase/Methods/SignEVMBaseMessageMethod.swift
@@ -49,7 +49,7 @@ public struct SignEVMBaseMessageMethod: CallbackMethod {
               var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: true) else {
             return nil
         }
-        var queryItems = URLEncoding.queryItems(
+        var queryItems = URLEncoding.queryGeneralItems(
             appId: appId,
             requestId: id.uuidString,
             blockchain: blockchain
diff --git a/Sources/Flow/Methods/AuthenticateMethod.swift b/Sources/Flow/Methods/AuthenticateMethod.swift
index f30358d..5e9468c 100644
--- a/Sources/Flow/Methods/AuthenticateMethod.swift
+++ b/Sources/Flow/Methods/AuthenticateMethod.swift
@@ -36,7 +36,7 @@ public struct AuthenticateMethod: CallbackMethod {
               var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: true) else {
             return nil
         }
-        var queryItems = URLEncoding.queryItems(
+        var queryItems = URLEncoding.queryGeneralItems(
             appId: appId,
             requestId: id.uuidString,
             blockchain: blockchain
diff --git a/Sources/Flow/Methods/SendFlowTransactionMethod.swift b/Sources/Flow/Methods/SendFlowTransactionMethod.swift
index 60adf1a..614ed7e 100644
--- a/Sources/Flow/Methods/SendFlowTransactionMethod.swift
+++ b/Sources/Flow/Methods/SendFlowTransactionMethod.swift
@@ -43,7 +43,7 @@ public struct SendFlowTransactionMethod: CallbackMethod {
               var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: false) else {
             return nil
         }
-        var queryItems: [QueryItem] = URLEncoding.queryItems(
+        var queryItems: [QueryItem] = URLEncoding.queryGeneralItems(
             appId: appId,
             requestId: id.uuidString,
             blockchain: blockchain
diff --git a/Sources/Flow/Methods/SignFlowMessageMethod.swift b/Sources/Flow/Methods/SignFlowMessageMethod.swift
index 19d9883..57e4d46 100644
--- a/Sources/Flow/Methods/SignFlowMessageMethod.swift
+++ b/Sources/Flow/Methods/SignFlowMessageMethod.swift
@@ -44,7 +44,7 @@ public struct SignFlowMessageMethod: CallbackMethod {
               var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: true) else {
             return nil
         }
-        var queryItems = URLEncoding.queryItems(
+        var queryItems = URLEncoding.queryGeneralItems(
             appId: appId,
             requestId: id.uuidString,
             blockchain: blockchain
diff --git a/Sources/Solana/Methods/SignAndSendSolanaTransactionMethod.swift b/Sources/Solana/Methods/SignAndSendSolanaTransactionMethod.swift
index e922747..54a0aa4 100644
--- a/Sources/Solana/Methods/SignAndSendSolanaTransactionMethod.swift
+++ b/Sources/Solana/Methods/SignAndSendSolanaTransactionMethod.swift
@@ -45,7 +45,7 @@ public struct SignAndSendSolanaTransactionMethod: CallbackMethod {
               var components = URLComponents(url: baseURL, resolvingAgainstBaseURL: true) else {
             return nil
         }
-        var queryItems: [QueryItem] = URLEncoding.queryItems(
+        var queryItems: [QueryItem] = URLEncoding.queryGeneralItems(
             appId: appId,
             requestId: id.uuidString,
             blockchain: blockchain