diff --git a/src/ApiGateways/Shopping.Aggregator/Models/BasketItemExtendedModel.cs b/src/ApiGateways/Shopping.Aggregator/Models/BasketItemExtendedModel.cs
new file mode 100644
index 0000000..dcca989
--- /dev/null
+++ b/src/ApiGateways/Shopping.Aggregator/Models/BasketItemExtendedModel.cs
@@ -0,0 +1,18 @@
+namespace Shopping.Aggregator.Models;
+/// <summary>
+/// It is the DTO of the Basket.API -> Entities -> ShoppingCartItem
+/// </summary>
+public class BasketItemExtendedModel
+{
+    public int Quantity { get; set; }
+    public string Color { get; set; }
+    public decimal Price { get; set; }
+    public string ProductId { get; set; }
+    public string ProductName { get; set; }
+
+    // Product Related Additional Fields -> these info will be retrieved from mongoDB by using productId
+    public string Category { get; set; }
+    public string Summary { get; set; }
+    public string Description { get; set; }
+    public string ImageFile { get; set; }
+}
\ No newline at end of file
diff --git a/src/ApiGateways/Shopping.Aggregator/Models/BasketModel.cs b/src/ApiGateways/Shopping.Aggregator/Models/BasketModel.cs
new file mode 100644
index 0000000..635aded
--- /dev/null
+++ b/src/ApiGateways/Shopping.Aggregator/Models/BasketModel.cs
@@ -0,0 +1,10 @@
+namespace Shopping.Aggregator.Models;
+/// <summary>
+/// It is the DTO of the Basket.API -> Entities -> ShoppingCart
+/// </summary>
+public class BasketModel
+{
+    public string UserName { get; set; }
+    public List<BasketItemExtendedModel> Items { get; set; } = new List<BasketItemExtendedModel>();
+    public decimal TotalPrice { get; set; }
+}
\ No newline at end of file
diff --git a/src/ApiGateways/Shopping.Aggregator/Models/CatalogModel.cs b/src/ApiGateways/Shopping.Aggregator/Models/CatalogModel.cs
new file mode 100644
index 0000000..802db09
--- /dev/null
+++ b/src/ApiGateways/Shopping.Aggregator/Models/CatalogModel.cs
@@ -0,0 +1,14 @@
+namespace Shopping.Aggregator.Models;
+/// <summary>
+/// It is the DTO of the Catalog.API -> Entities -> Product
+/// </summary>
+public class CatalogModel
+{
+    public string Id { get; set; }
+    public string Name { get; set; }
+    public string Category { get; set; }
+    public string Summary { get; set; }
+    public string Description { get; set; }
+    public string ImageFile { get; set; }
+    public decimal Price { get; set; }
+}
\ No newline at end of file
diff --git a/src/ApiGateways/Shopping.Aggregator/Models/OrderResponse.cs b/src/ApiGateways/Shopping.Aggregator/Models/OrderResponse.cs
new file mode 100644
index 0000000..7dc2269
--- /dev/null
+++ b/src/ApiGateways/Shopping.Aggregator/Models/OrderResponse.cs
@@ -0,0 +1,25 @@
+namespace Shopping.Aggregator.Models;
+/// <summary>
+/// It is the DTO of the Ordering.Domain -> Entities -> Order
+/// </summary>
+public class OrderResponse
+{
+    public string UserName { get; set; }
+    public decimal TotalPrice { get; set; }
+
+    // BillingAddress
+    public string FirstName { get; set; }
+    public string LastName { get; set; }
+    public string EmailAddress { get; set; }
+    public string AddressLine { get; set; }
+    public string Country { get; set; }
+    public string? State { get; set; }
+    public string? ZipCode { get; set; }
+
+    // Payment
+    public string? CardName { get; set; }
+    public string? CardNumber { get; set; }
+    public string? Expiration { get; set; }
+    public string? CVV { get; set; }
+    public int PaymentMethod { get; set; }
+}
\ No newline at end of file