diff --git a/frontend/composables/api/orders/useAddCartItem.ts b/frontend/composables/api/orders/useAddCartItem.ts
new file mode 100644
index 0000000..90265de
--- /dev/null
+++ b/frontend/composables/api/orders/useAddCartItem.ts
@@ -0,0 +1,36 @@
+// imports
+
+import { useMutation } from "@tanstack/vue-query";
+import { API_ENDPOINTS } from "~/constants";
+
+// types
+
+export type AddCartItemRequest = {
+    id: number;
+    quantity: number;
+};
+
+const useAddCartItem = () => {
+    // state
+
+    const { $axios: axios } = useNuxtApp();
+
+    // methods
+
+    const handleAddCartItem = async (params: AddCartItemRequest) => {
+        const { data } = await axios.post(
+            `${API_ENDPOINTS.orders.cart.add_one}/${params.id}`,
+            {
+                quantity: params.quantity,
+            }
+        );
+        return data;
+    };
+
+    return useMutation({
+        mutationFn: (itemData: AddCartItemRequest) =>
+            handleAddCartItem(itemData),
+    });
+};
+
+export default useAddCartItem;