diff --git a/blockchain_integration/pi_network/multi_signature/multi_sig_service.py b/blockchain_integration/pi_network/multi_signature/multi_sig_service.py
new file mode 100644
index 000000000..047099566
--- /dev/null
+++ b/blockchain_integration/pi_network/multi_signature/multi_sig_service.py
@@ -0,0 +1,25 @@
+from web3 import Web3
+import json
+
+class MultiSigWalletService:
+    def __init__(self, contract_address, abi):
+        self.w3 = Web3(Web3.HTTPProvider('https://your.ethereum.node'))
+        self.contract = self.w3.eth.contract(address=contract_address, abi=abi)
+
+    def submit_transaction(self, owner_address, to, value):
+        tx_hash = self.contract.functions.submitTransaction(to, value).transact({'from': owner_address})
+        return tx_hash.hex()
+
+    def approve_transaction(self, owner_address, tx_index):
+        tx_hash = self.contract.functions.approveTransaction(tx_index).transact({'from': owner_address})
+        return tx_hash.hex()
+
+    def execute_transaction(self, owner_address, tx_index):
+        tx_hash = self.contract.functions.executeTransaction(tx_index).transact({'from': owner_address})
+        return tx_hash.hex()
+
+    def get_transaction(self, tx_index):
+        return self.contract.functions.getTransaction(tx_index).call()
+
+    def get_transaction_count(self):
+        return self.contract.functions.getTransactionCount().call()