diff --git a/api/application/abstractions/transaction.py b/api/application/abstractions/transaction.py
new file mode 100644
index 0000000..9af0639
--- /dev/null
+++ b/api/application/abstractions/transaction.py
@@ -0,0 +1,15 @@
+from typing import Protocol
+
+
+class TransactionContextManager(Protocol):
+    async def __aenter__(self):
+        raise NotImplementedError
+
+    async def __aexit__(self, exc_type, exc_val, exc_tb):
+        raise NotImplementedError
+
+    async def commit(self):
+        raise NotImplementedError
+
+    async def rollback(self):
+        raise NotImplementedError
diff --git a/api/infrastructure/persistence/transaction.py b/api/infrastructure/persistence/transaction.py
index 4064266..bab0393 100644
--- a/api/infrastructure/persistence/transaction.py
+++ b/api/infrastructure/persistence/transaction.py
@@ -2,10 +2,11 @@ from types import TracebackType
 
 from sqlalchemy.ext.asyncio import AsyncSession
 
+from api.application.abstractions.transaction import TransactionContextManager
 from api.infrastructure.persistence.error import TransactionContextManagerError
 
 
-class SqlalchemyTransactionContextManager:
+class SqlalchemyTransactionContextManager(TransactionContextManager):
     def __init__(self, session: AsyncSession):
         self._session = session