diff --git a/blockchain_integration/pi_network/pi_network_university/payment_gateway/schemas.py b/blockchain_integration/pi_network/pi_network_university/payment_gateway/schemas.py
new file mode 100644
index 000000000..1cb2f99ad
--- /dev/null
+++ b/blockchain_integration/pi_network/pi_network_university/payment_gateway/schemas.py
@@ -0,0 +1,20 @@
+# payment_gateway/schemas.py
+from. import ma
+from.models import User, PaymentMethod, Transaction
+
+class UserSchema(ma.SQLAlchemyAutoSchema):
+    class Meta:
+        model = User
+        load_instance = True
+        exclude = ("password",)
+
+class PaymentMethodSchema(ma.SQLAlchemyAutoSchema):
+    class Meta:
+        model = PaymentMethod
+        load_instance = True
+        exclude = ("payment_method_token",)
+
+class TransactionSchema(ma.SQLAlchemyAutoSchema):
+    class Meta:
+        model = Transaction
+        load_instance = True