diff --git a/CHANGELOG.md b/CHANGELOG.md
index 600256c8..afaa040f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 2.2.0-beta01
+
+- Added Smart Contract interactions to SignEngine
+
 ## 2.1.14
 
 - Minor improvements
diff --git a/example/dapp/lib/utils/crypto/eip155.dart b/example/dapp/lib/utils/crypto/eip155.dart
index cd6e6bcd..8fbf05d8 100644
--- a/example/dapp/lib/utils/crypto/eip155.dart
+++ b/example/dapp/lib/utils/crypto/eip155.dart
@@ -245,19 +245,19 @@ class EIP155 {
   }) async {
     final results = await Future.wait([
       // results[0]
-      web3App.readContractCall(
+      web3App.requestReadContract(
         deployedContract: contract,
         functionName: 'name',
         rpcUrl: rpcUrl,
       ),
       // results[1]
-      web3App.readContractCall(
+      web3App.requestReadContract(
         deployedContract: contract,
         functionName: 'totalSupply',
         rpcUrl: rpcUrl,
       ),
       // results[2]
-      web3App.readContractCall(
+      web3App.requestReadContract(
         deployedContract: contract,
         functionName: 'balanceOf',
         rpcUrl: rpcUrl,
@@ -288,7 +288,7 @@ class EIP155 {
     required DeployedContract contract,
     required Transaction transaction,
   }) async {
-    return await web3App.writeContractCall(
+    return await web3App.requestWriteContract(
       topic: topic,
       chainId: chainId,
       rpcUrl: rpcUrl,
diff --git a/example/dapp/lib/widgets/method_dialog.dart b/example/dapp/lib/widgets/method_dialog.dart
index e745cf00..571b2df3 100644
--- a/example/dapp/lib/widgets/method_dialog.dart
+++ b/example/dapp/lib/widgets/method_dialog.dart
@@ -44,9 +44,12 @@ class MethodDialogState extends State<MethodDialog> {
       content: FutureBuilder<dynamic>(
         future: widget.response,
         builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {
-          debugPrint('snapshot: $snapshot');
           if (snapshot.hasData) {
-            final String t = jsonEncode(snapshot.data);
+            dynamic data = snapshot.data;
+            if (snapshot.data is String) {
+              data = jsonDecode(snapshot.data);
+            }
+            final String t = jsonEncode(data);
             return InkWell(
               onTap: () {
                 Clipboard.setData(ClipboardData(text: t)).then(
@@ -77,7 +80,7 @@ class MethodDialogState extends State<MethodDialog> {
             return const SizedBox(
               width: StyleConstants.linear48,
               height: StyleConstants.linear48,
-              child: CircularProgressIndicator(),
+              child: Center(child: CircularProgressIndicator()),
             );
           }
         },
diff --git a/example/wallet/lib/dependencies/chains/evm_service.dart b/example/wallet/lib/dependencies/chains/evm_service.dart
index cfbbcca5..1f2521c5 100644
--- a/example/wallet/lib/dependencies/chains/evm_service.dart
+++ b/example/wallet/lib/dependencies/chains/evm_service.dart
@@ -98,14 +98,13 @@ class EVMService {
     }
   }
 
-  Future<String?> personalSign(String topic, dynamic parameters) async {
+  Future<dynamic> personalSign(String topic, dynamic parameters) async {
     debugPrint('[$runtimeType] personalSign request: $parameters');
-    String? result;
+    dynamic result;
     final data = EthUtils.getDataFromParamsList(parameters);
     final message = EthUtils.getUtf8Message(data.toString());
 
-    result = await requestApproval(message);
-    if (result == null) {
+    if (await requestApproval(message)) {
       try {
         // Load the private key
         final keys = GetIt.I<IKeyService>().getKeysForChain(
@@ -122,9 +121,10 @@ class EVMService {
         result = '0x$signature';
       } catch (e) {
         debugPrint('[$runtimeType] personalSign error $e');
-        result = e.toString();
-        // _web3Wallet.respondSessionRequest(topic: topic, response: response)
+        result = JsonRpcError(code: 0, message: e.toString());
       }
+    } else {
+      result = const JsonRpcError(code: 5001, message: 'User rejected method');
     }
 
     final session = _web3Wallet.sessions.get(topic);
@@ -134,14 +134,13 @@ class EVMService {
     return result;
   }
 
-  Future<String?> ethSign(String topic, dynamic parameters) async {
+  Future<dynamic> ethSign(String topic, dynamic parameters) async {
     debugPrint('[$runtimeType] ethSign request: $parameters');
-    String? result;
+    dynamic result;
     final data = EthUtils.getDataFromParamsList(parameters);
     final message = EthUtils.getUtf8Message(data.toString());
 
-    result = await requestApproval(message);
-    if (result == null) {
+    if (await requestApproval(message)) {
       try {
         // Load the private key
         final keys = GetIt.I<IKeyService>().getKeysForChain(
@@ -158,8 +157,10 @@ class EVMService {
         result = '0x$signature';
       } catch (e) {
         debugPrint('[$runtimeType] ethSign error $e');
-        result = e.toString();
+        result = JsonRpcError(code: 0, message: e.toString());
       }
+    } else {
+      result = const JsonRpcError(code: 5001, message: 'User rejected method');
     }
 
     final session = _web3Wallet.sessions.get(topic);
@@ -169,12 +170,59 @@ class EVMService {
     return result;
   }
 
-  Future<String?> ethSignTransaction(String topic, dynamic parameters) async {
+  Future<dynamic> ethSignTypedData(String topic, dynamic parameters) async {
+    debugPrint('[$runtimeType] ethSignTypedData request: $parameters');
+    dynamic result;
+    final data = parameters[1] as String;
+
+    if (await requestApproval(data)) {
+      try {
+        final keys = GetIt.I<IKeyService>().getKeysForChain(
+          chainSupported.chain(),
+        );
+
+        result = EthSigUtil.signTypedData(
+          privateKey: keys[0].privateKey,
+          jsonData: data,
+          version: TypedDataVersion.V4,
+        );
+      } catch (e) {
+        debugPrint('[$runtimeType] ethSignTypedData error $e');
+        result = JsonRpcError(code: 0, message: e.toString());
+      }
+    } else {
+      result = const JsonRpcError(code: 5001, message: 'User rejected method');
+    }
+
+    final session = _web3Wallet.sessions.get(topic);
+    final scheme = session?.peer.metadata.redirect?.native ?? '';
+    DeepLinkHandler.goTo(scheme, delay: 300, modalTitle: 'Success');
+
+    return result;
+  }
+
+  Future<void> switchChain(String topic, dynamic parameters) async {
+    debugPrint('received switchChain request: $topic $parameters');
+    final params = (parameters as List).first as Map<String, dynamic>;
+    final hexChainId = params['chainId'].toString().replaceFirst('0x', '');
+    final chainId = int.parse(hexChainId, radix: 16);
+    final web3wallet = _web3WalletService.getWeb3Wallet();
+    await web3wallet.emitSessionEvent(
+      topic: topic,
+      chainId: 'eip155:$chainId',
+      event: SessionEventParams(
+        name: 'chainChanged',
+        data: chainId,
+      ),
+    );
+  }
+
+  Future<dynamic> ethSignTransaction(String topic, dynamic parameters) async {
     debugPrint('[$runtimeType] ethSignTransaction request: $parameters');
-    String? result;
+    dynamic result;
 
     final tJson = parameters[0] as Map<String, dynamic>;
-    final transaction = await approveTransaction(jsonEncode(tJson));
+    final transaction = await approveTransaction(tJson);
     if (transaction != null) {
       try {
         // Load the private key
@@ -182,9 +230,7 @@ class EVMService {
           chainSupported.chain(),
         );
         final credentials = EthPrivateKey.fromHex('0x${keys[0].privateKey}');
-
         final chainId = chainSupported.chain().split(':').last;
-        debugPrint('[$runtimeType] ethSignTransaction chainId: $chainId');
 
         final signature = await ethClient.signTransaction(
           credentials,
@@ -197,11 +243,12 @@ class EVMService {
 
         // Return the signed transaction as a hexadecimal string
         result = '0x$signedTx';
-      } catch (e, s) {
+      } catch (e) {
         debugPrint('[$runtimeType] ethSignTransaction error $e');
-        print(s);
-        result = e.toString();
+        result = JsonRpcError(code: 0, message: e.toString());
       }
+    } else {
+      result = const JsonRpcError(code: 5001, message: 'User rejected method');
     }
 
     final session = _web3Wallet.sessions.get(topic);
@@ -211,12 +258,12 @@ class EVMService {
     return result;
   }
 
-  Future<String?> ethSendTransaction(String topic, dynamic parameters) async {
+  Future<dynamic> ethSendTransaction(String topic, dynamic parameters) async {
     debugPrint('[$runtimeType] ethSendTransaction request: $parameters');
-    String? result;
+    dynamic result;
 
     final tJson = parameters[0] as Map<String, dynamic>;
-    final transaction = await approveTransaction(jsonEncode(tJson));
+    final transaction = await approveTransaction(tJson);
     if (transaction != null) {
       try {
         // Load the private key
@@ -235,41 +282,12 @@ class EVMService {
         );
 
         result = '0x$signedTx';
-      } catch (e, s) {
-        debugPrint('[$runtimeType] ethSendTransaction error $e');
-        print(s);
-        result = e.toString();
-      }
-    }
-
-    final session = _web3Wallet.sessions.get(topic);
-    final scheme = session?.peer.metadata.redirect?.native ?? '';
-    DeepLinkHandler.goTo(scheme, delay: 300, modalTitle: 'Success');
-
-    return result;
-  }
-
-  Future<String?> ethSignTypedData(String topic, dynamic parameters) async {
-    debugPrint('[$runtimeType] ethSignTypedData request: $parameters');
-    String? result;
-    final data = parameters[1] as String;
-
-    result = await requestApproval(data);
-    if (result == null) {
-      try {
-        final keys = GetIt.I<IKeyService>().getKeysForChain(
-          chainSupported.chain(),
-        );
-
-        result = EthSigUtil.signTypedData(
-          privateKey: keys[0].privateKey,
-          jsonData: data,
-          version: TypedDataVersion.V4,
-        );
       } catch (e) {
-        debugPrint('[$runtimeType] ethSignTypedData error $e');
-        result = e.toString();
+        debugPrint('[$runtimeType] ethSendTransaction error $e');
+        result = JsonRpcError(code: 0, message: e.toString());
       }
+    } else {
+      result = const JsonRpcError(code: 5001, message: 'User rejected method');
     }
 
     final session = _web3Wallet.sessions.get(topic);
@@ -279,31 +297,15 @@ class EVMService {
     return result;
   }
 
-  Future<void> switchChain(String topic, dynamic parameters) async {
-    debugPrint('received switchChain request: $topic $parameters');
-    final params = (parameters as List).first as Map<String, dynamic>;
-    final hexChainId = params['chainId'].toString().replaceFirst('0x', '');
-    final chainId = int.parse(hexChainId, radix: 16);
-    final web3wallet = _web3WalletService.getWeb3Wallet();
-    await web3wallet.emitSessionEvent(
-      topic: topic,
-      chainId: 'eip155:$chainId',
-      event: SessionEventParams(
-        name: 'chainChanged',
-        data: chainId,
-      ),
-    );
-  }
-
   Future<void> addChain(String topic, dynamic parameters) async {
     debugPrint('received addChain request: $topic $parameters');
   }
 
-  Future<String?> requestApproval(String text) async {
+  Future<bool> requestApproval(String text) async {
     final approved = await _bottomSheetService.queueBottomSheet(
       widget: WCRequestWidget(
         child: WCConnectionWidget(
-          title: 'Sign Transaction',
+          title: 'Approve Request',
           info: [
             WCConnectionModel(text: text),
           ],
@@ -311,17 +313,11 @@ class EVMService {
       ),
     );
 
-    if (approved != null && approved == false) {
-      return 'User rejected signature';
-    }
-
-    return null;
+    return approved ?? false;
   }
 
-  Future<Transaction?> approveTransaction(String text) async {
-    final tJson = jsonDecode(text) as Map<String, dynamic>;
+  Future<Transaction?> approveTransaction(Map<String, dynamic> tJson) async {
     String? tValue = tJson['value'];
-    debugPrint('tValue $tValue');
     EtherAmount? value;
     if (tValue != null) {
       tValue = tValue.replaceFirst('0x', '');
@@ -344,68 +340,42 @@ class EVMService {
           : null,
     );
 
-    // Gas limit
+    final gasPrice = await ethClient.getGasPrice();
     final gasLimit = await ethClient.estimateGas(
       sender: transaction.from,
       to: transaction.to,
       value: transaction.value,
       data: transaction.data,
+      gasPrice: gasPrice,
     );
-    print(gasLimit.toInt().toString());
-    // BigInt estimateGas;
-    // BigInt maxFee;
-
-    final gasPrice = await ethClient.getGasPrice();
-    print(gasPrice.getInWei);
 
     transaction = transaction.copyWith(
-      maxGas: gasLimit.toInt(),
       gasPrice: gasPrice,
+      maxGas: gasLimit.toInt(),
     );
 
-    final estimateGas = gasLimit * gasPrice.getInWei;
-    final maxFee = estimateGas;
-    final trxValue = transaction.value ?? EtherAmount.zero();
-
-    BigInt total = estimateGas + trxValue.getInWei;
-    BigInt maxAmount = maxFee + trxValue.getInWei;
-
-    // Adjust the amount if it exceeds the balance
-    if (trxValue.getInWei > BigInt.zero) {
-      final chainId = await ethClient.getNetworkId();
-      debugPrint(chainId.toString());
-      final balance = await ethClient.getBalance(transaction.from!);
-      if (maxAmount > balance.getInWei) {
-        final amountLeft = balance.getInWei - maxFee;
-        if (amountLeft <= BigInt.zero) {
-          throw Exception(
-            'Insufficient funds for transfer, maybe it needs gas fee.',
-          );
-        }
-
-        transaction = transaction.copyWith(
-          value: EtherAmount.inWei(amountLeft),
-        );
-        total = estimateGas + trxValue.getInWei;
-        maxAmount = maxFee + trxValue.getInWei;
-      }
-    }
+    final gweiGasPrice = (transaction.gasPrice?.getInWei ?? BigInt.zero) /
+        BigInt.from(1000000000);
 
     final approved = await _bottomSheetService.queueBottomSheet(
       widget: WCRequestWidget(
         child: WCConnectionWidget(
-          title: 'Sign Transaction',
+          title: 'Approve Transaction',
           info: [
-            WCConnectionModel(text: text),
+            WCConnectionModel(elements: [jsonEncode(tJson)]),
+            WCConnectionModel(
+              title: 'Gas price',
+              elements: ['${gweiGasPrice.toStringAsFixed(2)} GWEI'],
+            ),
           ],
         ),
       ),
     );
 
-    if (approved != null && approved == false) {
-      return null;
+    if (approved == true) {
+      return transaction;
     }
 
-    return transaction;
+    return null;
   }
 }
diff --git a/example/wallet/lib/widgets/wc_connection_widget/wc_connection_widget_info.dart b/example/wallet/lib/widgets/wc_connection_widget/wc_connection_widget_info.dart
index da3060d2..20537660 100644
--- a/example/wallet/lib/widgets/wc_connection_widget/wc_connection_widget_info.dart
+++ b/example/wallet/lib/widgets/wc_connection_widget/wc_connection_widget_info.dart
@@ -34,11 +34,12 @@ class WCConnectionWidgetInfo extends StatelessWidget {
     return Column(
       crossAxisAlignment: CrossAxisAlignment.start,
       children: [
-        Text(
-          model.title!,
-          style: StyleConstants.layerTextStyle3,
-        ),
-        const SizedBox(height: StyleConstants.linear8),
+        if (model.title != null)
+          Text(
+            model.title!,
+            style: StyleConstants.layerTextStyle3,
+          ),
+        if (model.title != null) const SizedBox(height: StyleConstants.linear8),
         Wrap(
           spacing: 4,
           runSpacing: 4,
diff --git a/lib/apis/sign_api/i_sign_client.dart b/lib/apis/sign_api/i_sign_client.dart
index 72deb859..8c4c2f74 100644
--- a/lib/apis/sign_api/i_sign_client.dart
+++ b/lib/apis/sign_api/i_sign_client.dart
@@ -78,6 +78,23 @@ abstract class ISignClient {
     required String chainId,
     required SessionRequestParams request,
   });
+  Future<dynamic> requestReadContract({
+    required DeployedContract deployedContract,
+    required String functionName,
+    required String rpcUrl,
+    List<dynamic> parameters = const [],
+  });
+  Future<dynamic> requestWriteContract({
+    required String topic,
+    required String chainId,
+    required String rpcUrl,
+    required DeployedContract deployedContract,
+    required String functionName,
+    required Transaction transaction,
+    String? method,
+    List<dynamic> parameters = const [],
+  });
+
   void registerEventHandler({
     required String chainId,
     required String event,
diff --git a/lib/apis/sign_api/i_sign_engine_app.dart b/lib/apis/sign_api/i_sign_engine_app.dart
index c393d4ea..a0764a0d 100644
--- a/lib/apis/sign_api/i_sign_engine_app.dart
+++ b/lib/apis/sign_api/i_sign_engine_app.dart
@@ -1,10 +1,5 @@
-import 'package:event/event.dart';
-import 'package:walletconnect_flutter_v2/apis/core/relay_client/relay_client_models.dart';
 import 'package:walletconnect_flutter_v2/apis/sign_api/i_sign_engine_common.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/models/json_rpc_models.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/models/proposal_models.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/models/sign_client_events.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/models/sign_client_models.dart';
+import 'package:walletconnect_flutter_v2/walletconnect_flutter_v2.dart';
 
 abstract class ISignEngineApp extends ISignEngineCommon {
   abstract final Event<SessionUpdate> onSessionUpdate;
@@ -24,6 +19,23 @@ abstract class ISignEngineApp extends ISignEngineCommon {
     required String chainId,
     required SessionRequestParams request,
   });
+  Future<dynamic> requestReadContract({
+    required DeployedContract deployedContract,
+    required String functionName,
+    required String rpcUrl,
+    List<dynamic> parameters = const [],
+  });
+  Future<dynamic> requestWriteContract({
+    required String topic,
+    required String chainId,
+    required String rpcUrl,
+    required DeployedContract deployedContract,
+    required String functionName,
+    required Transaction transaction,
+    String? method,
+    List<dynamic> parameters = const [],
+  });
+
   void registerEventHandler({
     required String chainId,
     required String event,
diff --git a/lib/apis/sign_api/sign_client.dart b/lib/apis/sign_api/sign_client.dart
index 888089b7..7b75f063 100644
--- a/lib/apis/sign_api/sign_client.dart
+++ b/lib/apis/sign_api/sign_client.dart
@@ -20,6 +20,7 @@ import 'package:walletconnect_flutter_v2/apis/sign_api/models/session_models.dar
 import 'package:walletconnect_flutter_v2/apis/sign_api/sessions.dart';
 import 'package:walletconnect_flutter_v2/apis/utils/constants.dart';
 import 'package:walletconnect_flutter_v2/apis/utils/log_level.dart';
+import 'package:web3dart/web3dart.dart';
 
 class SignClient implements ISignClient {
   bool _initialized = false;
@@ -246,7 +247,7 @@ class SignClient implements ISignClient {
   }
 
   @override
-  Future request({
+  Future<dynamic> request({
     required String topic,
     required String chainId,
     required SessionRequestParams request,
@@ -262,6 +263,52 @@ class SignClient implements ISignClient {
     }
   }
 
+  @override
+  Future<dynamic> requestReadContract({
+    required DeployedContract deployedContract,
+    required String functionName,
+    required String rpcUrl,
+    List parameters = const [],
+  }) async {
+    try {
+      return await engine.requestReadContract(
+        deployedContract: deployedContract,
+        functionName: functionName,
+        rpcUrl: rpcUrl,
+        parameters: parameters,
+      );
+    } catch (e) {
+      rethrow;
+    }
+  }
+
+  @override
+  Future<dynamic> requestWriteContract({
+    required String topic,
+    required String chainId,
+    required String rpcUrl,
+    required DeployedContract deployedContract,
+    required String functionName,
+    required Transaction transaction,
+    String? method,
+    List parameters = const [],
+  }) async {
+    try {
+      return await engine.requestWriteContract(
+        topic: topic,
+        chainId: chainId,
+        rpcUrl: rpcUrl,
+        deployedContract: deployedContract,
+        functionName: functionName,
+        transaction: transaction,
+        method: method,
+        parameters: parameters,
+      );
+    } catch (e) {
+      rethrow;
+    }
+  }
+
   @override
   Future<void> respond({
     required String topic,
diff --git a/lib/apis/sign_api/sign_engine.dart b/lib/apis/sign_api/sign_engine.dart
index 10770b3c..417e2784 100644
--- a/lib/apis/sign_api/sign_engine.dart
+++ b/lib/apis/sign_api/sign_engine.dart
@@ -1,31 +1,15 @@
 import 'dart:async';
 import 'dart:convert';
+import 'package:http/http.dart' as http;
 
-import 'package:event/event.dart';
-import 'package:walletconnect_flutter_v2/apis/core/i_core.dart';
-import 'package:walletconnect_flutter_v2/apis/core/pairing/i_pairing_store.dart';
 import 'package:walletconnect_flutter_v2/apis/core/pairing/utils/json_rpc_utils.dart';
-import 'package:walletconnect_flutter_v2/apis/core/pairing/utils/pairing_models.dart';
-import 'package:walletconnect_flutter_v2/apis/core/relay_client/relay_client_models.dart';
 import 'package:walletconnect_flutter_v2/apis/core/store/i_generic_store.dart';
 import 'package:walletconnect_flutter_v2/apis/core/verify/models/verify_context.dart';
-import 'package:walletconnect_flutter_v2/apis/models/basic_models.dart';
-import 'package:walletconnect_flutter_v2/apis/models/json_rpc_error.dart';
 import 'package:walletconnect_flutter_v2/apis/models/json_rpc_request.dart';
-import 'package:walletconnect_flutter_v2/apis/models/json_rpc_response.dart';
 import 'package:walletconnect_flutter_v2/apis/sign_api/i_sessions.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/i_sign_engine.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/models/json_rpc_models.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/models/proposal_models.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/models/session_models.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/models/sign_client_events.dart';
-import 'package:walletconnect_flutter_v2/apis/sign_api/models/sign_client_models.dart';
+import 'package:walletconnect_flutter_v2/apis/sign_api/utils/custom_credentials.dart';
 import 'package:walletconnect_flutter_v2/apis/sign_api/utils/sign_api_validator_utils.dart';
-import 'package:walletconnect_flutter_v2/apis/utils/constants.dart';
-import 'package:walletconnect_flutter_v2/apis/utils/errors.dart';
-import 'package:walletconnect_flutter_v2/apis/utils/method_constants.dart';
-import 'package:walletconnect_flutter_v2/apis/utils/namespace_utils.dart';
-import 'package:walletconnect_flutter_v2/apis/utils/walletconnect_utils.dart';
+import 'package:walletconnect_flutter_v2/walletconnect_flutter_v2.dart';
 
 class SignEngine implements ISignEngine {
   static const List<List<String>> DEFAULT_METHODS = [
@@ -488,6 +472,68 @@ class SignEngine implements ISignEngine {
     );
   }
 
+  @override
+  Future<dynamic> requestReadContract({
+    required DeployedContract deployedContract,
+    required String functionName,
+    required String rpcUrl,
+    List<dynamic> parameters = const [],
+  }) async {
+    try {
+      core.logger.i('readContractCall: with function $functionName');
+      final result = await Web3Client(rpcUrl, http.Client()).call(
+        contract: deployedContract,
+        function: deployedContract.function(functionName),
+        params: parameters,
+      );
+
+      core.logger.i(
+          'readContractCall - function: $functionName - result: ${result.first}');
+      return result.first;
+    } catch (e) {
+      rethrow;
+    }
+  }
+
+  @override
+  Future<dynamic> requestWriteContract({
+    required String topic,
+    required String chainId,
+    required String rpcUrl,
+    required DeployedContract deployedContract,
+    required String functionName,
+    required Transaction transaction,
+    String? method,
+    List<dynamic> parameters = const [],
+  }) async {
+    final credentials = CustomCredentials(
+      signEngine: this,
+      topic: topic,
+      chainId: chainId,
+      address: transaction.from!,
+      method: method,
+    );
+    final trx = Transaction.callContract(
+      contract: deployedContract,
+      function: deployedContract.function(functionName),
+      from: credentials.address,
+      parameters: [
+        if (transaction.to != null) transaction.to,
+        if (transaction.value != null) transaction.value!.getInWei,
+        ...parameters,
+      ],
+    );
+
+    if (chainId.contains(':')) {
+      chainId = chainId.split(':').last;
+    }
+    return await Web3Client(rpcUrl, http.Client()).sendTransaction(
+      credentials,
+      trx,
+      chainId: int.parse(chainId),
+    );
+  }
+
   @override
   Future<void> respondSessionRequest({
     required String topic,
diff --git a/lib/apis/sign_api/utils/custom_credentials.dart b/lib/apis/sign_api/utils/custom_credentials.dart
new file mode 100644
index 00000000..1db2c80e
--- /dev/null
+++ b/lib/apis/sign_api/utils/custom_credentials.dart
@@ -0,0 +1,80 @@
+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:walletconnect_flutter_v2/walletconnect_flutter_v2.dart';
+import 'package:web3dart/crypto.dart' as crypto;
+
+class CustomCredentials extends CustomTransactionSender {
+  CustomCredentials({
+    required ISignEngine signEngine,
+    required String topic,
+    required String chainId,
+    required EthereumAddress address,
+    String? method,
+  })  : _signEngine = signEngine,
+        _topic = topic,
+        _chainId = chainId,
+        _address = address,
+        _method = method;
+
+  final ISignEngine _signEngine;
+  final String _topic;
+  final String _chainId;
+  final EthereumAddress _address;
+  final String? _method;
+
+  @override
+  EthereumAddress get address => _address;
+
+  @override
+  Future<String> sendTransaction(Transaction transaction) async {
+    final result = await _sendTransaction(transaction);
+    if (result is Map) {
+      return jsonEncode(result);
+    }
+    return result.toString();
+  }
+
+  Future<dynamic> _sendTransaction(Transaction transaction) async {
+    final sessionRequestParams = SessionRequestParams(
+      method: _method ?? MethodsConstants.ethSendTransaction,
+      params: [
+        transaction.toJson(),
+      ],
+    );
+
+    final result = await _signEngine.request(
+      topic: _topic,
+      chainId: _chainId,
+      request: sessionRequestParams,
+    );
+    return result;
+  }
+
+  @override
+  Future<EthereumAddress> extractAddress() => Future.value(_address);
+
+  @override
+  Future<crypto.MsgSignature> signToSignature(
+    Uint8List payload, {
+    int? chainId,
+    bool isEIP1559 = false,
+  }) {
+    final signature = signToEcSignature(
+      payload,
+      chainId: chainId,
+      isEIP1559: isEIP1559,
+    );
+    return Future.value(signature);
+  }
+
+  @override
+  crypto.MsgSignature signToEcSignature(
+    Uint8List payload, {
+    int? chainId,
+    bool isEIP1559 = false,
+  }) {
+    // TODO: implement signToEcSignature
+    throw UnimplementedError();
+  }
+}
diff --git a/lib/apis/utils/extensions.dart b/lib/apis/utils/extensions.dart
index 2c2858f3..fa855498 100644
--- a/lib/apis/utils/extensions.dart
+++ b/lib/apis/utils/extensions.dart
@@ -1,11 +1,7 @@
-import 'dart:typed_data';
-
 import 'package:walletconnect_flutter_v2/walletconnect_flutter_v2.dart';
 import 'package:web3dart/crypto.dart' as crypto;
-import 'package:http/http.dart' as http;
 
 extension TransactionExtension on Transaction {
-  // https://github.com/WalletConnect/WalletConnectFlutterV2/issues/246#issuecomment-1905455072
   Map<String, dynamic> toJson() {
     return {
       if (from != null) 'from': from!.hex,
@@ -24,140 +20,3 @@ extension TransactionExtension on Transaction {
     };
   }
 }
-
-extension ContractsInteractionExtension on Web3App {
-  Future<dynamic> readContractCall({
-    required DeployedContract deployedContract,
-    required String functionName,
-    required String rpcUrl,
-    List<dynamic> parameters = const [],
-  }) async {
-    try {
-      core.logger.i('readContractCall: with function $functionName');
-      final result = await Web3Client(rpcUrl, http.Client()).call(
-        contract: deployedContract,
-        function: deployedContract.function(functionName),
-        params: parameters,
-      );
-
-      core.logger.i(
-          'readContractCall - function: $functionName - result: ${result.first}');
-      return result.first;
-    } catch (e) {
-      rethrow;
-    }
-  }
-
-  Future<dynamic> writeContractCall({
-    required String topic,
-    required String chainId,
-    required String rpcUrl,
-    required DeployedContract deployedContract,
-    required String functionName,
-    required Transaction transaction,
-    String? method,
-    List<dynamic> parameters = const [],
-  }) async {
-    try {
-      final credentials = _CustomCredentialsSender(
-        topic: topic,
-        chainId: chainId,
-        signEngine: signEngine,
-        address: transaction.from!,
-        method: method,
-      );
-      final trx = Transaction.callContract(
-        contract: deployedContract,
-        function: deployedContract.function(functionName),
-        from: credentials.address,
-        parameters: [
-          if (transaction.to != null) transaction.to,
-          if (transaction.value != null) transaction.value!.getInWei,
-          ...parameters,
-        ],
-      );
-
-      if (chainId.contains(':')) {
-        chainId = chainId.split(':').last;
-      }
-      return await Web3Client(rpcUrl, http.Client()).sendTransaction(
-        credentials,
-        trx,
-        chainId: int.parse(chainId),
-      );
-    } catch (e) {
-      rethrow;
-    }
-  }
-}
-
-class _CustomCredentialsSender extends CustomTransactionSender {
-  _CustomCredentialsSender({
-    required ISignEngine signEngine,
-    required String topic,
-    required String chainId,
-    required EthereumAddress address,
-    String? method,
-  })  : _signEngine = signEngine,
-        _topic = topic,
-        _chainId = chainId,
-        _address = address,
-        _method = method;
-
-  final ISignEngine _signEngine;
-  final String _topic;
-  final String _chainId;
-  final EthereumAddress _address;
-  final String? _method;
-
-  @override
-  EthereumAddress get address => _address;
-
-  @override
-  Future<String> sendTransaction(Transaction transaction) async {
-    try {
-      final sessionRequestParams = SessionRequestParams(
-        method: _method ?? MethodsConstants.ethSendTransaction,
-        params: [
-          transaction.toJson(),
-        ],
-      );
-
-      final result = await _signEngine.request(
-        topic: _topic,
-        chainId: _chainId,
-        request: sessionRequestParams,
-      );
-      return result;
-    } catch (e) {
-      rethrow;
-    }
-  }
-
-  @override
-  Future<EthereumAddress> extractAddress() => Future.value(_address);
-
-  @override
-  Future<crypto.MsgSignature> signToSignature(
-    Uint8List payload, {
-    int? chainId,
-    bool isEIP1559 = false,
-  }) {
-    final signature = signToEcSignature(
-      payload,
-      chainId: chainId,
-      isEIP1559: isEIP1559,
-    );
-    return Future.value(signature);
-  }
-
-  @override
-  crypto.MsgSignature signToEcSignature(
-    Uint8List payload, {
-    int? chainId,
-    bool isEIP1559 = false,
-  }) {
-    // TODO: implement signToEcSignature
-    throw UnimplementedError();
-  }
-}
diff --git a/lib/apis/web3app/web3app.dart b/lib/apis/web3app/web3app.dart
index eebc0c0c..11f1167c 100644
--- a/lib/apis/web3app/web3app.dart
+++ b/lib/apis/web3app/web3app.dart
@@ -194,7 +194,7 @@ class Web3App implements IWeb3App {
   }
 
   @override
-  Future request({
+  Future<dynamic> request({
     required String topic,
     required String chainId,
     required SessionRequestParams request,
@@ -210,6 +210,52 @@ class Web3App implements IWeb3App {
     }
   }
 
+  @override
+  Future<dynamic> requestReadContract({
+    required DeployedContract deployedContract,
+    required String functionName,
+    required String rpcUrl,
+    List parameters = const [],
+  }) async {
+    try {
+      return await signEngine.requestReadContract(
+        deployedContract: deployedContract,
+        functionName: functionName,
+        rpcUrl: rpcUrl,
+        parameters: parameters,
+      );
+    } catch (e) {
+      rethrow;
+    }
+  }
+
+  @override
+  Future<dynamic> requestWriteContract({
+    required String topic,
+    required String chainId,
+    required String rpcUrl,
+    required DeployedContract deployedContract,
+    required String functionName,
+    required Transaction transaction,
+    String? method,
+    List parameters = const [],
+  }) async {
+    try {
+      return await signEngine.requestWriteContract(
+        topic: topic,
+        chainId: chainId,
+        rpcUrl: rpcUrl,
+        deployedContract: deployedContract,
+        functionName: functionName,
+        transaction: transaction,
+        method: method,
+        parameters: parameters,
+      );
+    } catch (e) {
+      rethrow;
+    }
+  }
+
   @override
   void registerEventHandler({
     required String chainId,
diff --git a/lib/src/version.dart b/lib/src/version.dart
index 8651b1cf..c79752e5 100644
--- a/lib/src/version.dart
+++ b/lib/src/version.dart
@@ -1,2 +1,2 @@
 // Generated code. Do not modify.
-const packageVersion = '2.1.14';
+const packageVersion = '2.2.0-beta01';
diff --git a/pubspec.yaml b/pubspec.yaml
index e37bc619..b319543a 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,6 +1,6 @@
 name: walletconnect_flutter_v2
 description: This repository contains oficial implementation of WalletConnect v2 protocols for Flutter applications. The communications protocol for web3.
-version: 2.1.14
+version: 2.2.0-beta01
 repository: https://github.com/WalletConnect/WalletConnectFlutterV2
 
 environment:
diff --git a/test/sign_api/utils/sign_client_test_wrapper.dart b/test/sign_api/utils/sign_client_test_wrapper.dart
index 56a3d628..bf6d76f2 100644
--- a/test/sign_api/utils/sign_client_test_wrapper.dart
+++ b/test/sign_api/utils/sign_client_test_wrapper.dart
@@ -201,7 +201,7 @@ class SignClientTestWrapper implements ISignEngine {
   }
 
   @override
-  Future request({
+  Future<dynamic> request({
     required String topic,
     required String chainId,
     required SessionRequestParams request,
@@ -217,6 +217,52 @@ class SignClientTestWrapper implements ISignEngine {
     }
   }
 
+  @override
+  Future<dynamic> requestReadContract({
+    required DeployedContract deployedContract,
+    required String functionName,
+    required String rpcUrl,
+    List parameters = const [],
+  }) async {
+    try {
+      return await client.requestReadContract(
+        deployedContract: deployedContract,
+        functionName: functionName,
+        rpcUrl: rpcUrl,
+        parameters: parameters,
+      );
+    } catch (e) {
+      rethrow;
+    }
+  }
+
+  @override
+  Future<dynamic> requestWriteContract({
+    required String topic,
+    required String chainId,
+    required String rpcUrl,
+    required DeployedContract deployedContract,
+    required String functionName,
+    required Transaction transaction,
+    String? method,
+    List parameters = const [],
+  }) async {
+    try {
+      return await client.requestWriteContract(
+        topic: topic,
+        chainId: chainId,
+        rpcUrl: rpcUrl,
+        deployedContract: deployedContract,
+        functionName: functionName,
+        transaction: transaction,
+        method: method,
+        parameters: parameters,
+      );
+    } catch (e) {
+      rethrow;
+    }
+  }
+
   @override
   Future<void> respondSessionRequest({
     required String topic,