# iTest

Use [iTest](https://developers.alipayplus.com/open/console/developer/aps/app/iTest) to create API requests.

1.  In the **Request** panel, configure the following fields:

-   **API**
-   **Products**
-   **Presentation Mode**
-   **Wallet**
-   **Terminal Type**
-   **Private Key**

![image](https://idocs-assets.marmot-cloud.com/storage/idocs87c36dc8dac653c1/1667272695761-733eb058-90b1-4483-8f82-97ec19726ce5.png)

The request body is generated automatically in the **Request body** field. If you want to customize a parameter, edit the request body.

![image](https://idocs-assets.marmot-cloud.com/storage/idocs87c36dc8dac653c1/1667273156898-782202a2-e4b7-4479-8a60-45e06f1c69d9.png)

2.  Click **Send** to send the request. The request is signed automatically. How the request is signed is displayed in the **Signing tutorial** tab.

![image](https://idocs-assets.marmot-cloud.com/storage/idocs87c36dc8dac653c1/1667273205491-7decb6a4-30a4-4167-8b67-33754a102da2.png)

3.  After the request is sent, the response message is then displayed in the **Response** tab on the right side of the page.

In addition, you can test APIs locally by downloading the Postman script. For detailed instructions, see [Test APIs locally with Postman script](test_apis_locally).