> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fizen.io/llms.txt
> Use this file to discover all available pages before exploring further.

# API keys và Webhook subscription

You can use API keys and Webhook subscription to integrate Fizen Pay to your preexisting Ecommerce shop.

### **How to create API key**

**Step 1.** Go to **Account settings** in your Fizen Pay merchant account.

**Step 2.** In the **API keys** section, click **New API key**.

This will be the key used to connect your Ecommerce store to your Fizen Pay account.

**Copy** the API key.

![](https://lh4.googleusercontent.com/4Pym5zop-OKwIUiaviViXAD-Y2VpXT7M3fIDVnChuxkA-qDYyLIoIFaxTDqb02lb_Hb03eZMsETjx6JhQbGDqsIAE4n6TM1Qn3PzxltT-QUUMLDaGyjLB8yfRPqs-ySq80pZnCebkjGkosZEEW-wZ_o)

### How to add Webhook Shared Secret

**Step 1.** Go to **Account settings** in your Fizen Pay merchant account.

**Step 2**. In the **Webhook Subscriptions** section, click A**dd an endpoint** 

![](https://lh6.googleusercontent.com/WFQOr0Dy8u5yqRpQw66o6XS5YuqXTPo_0BletMfgsn60M6tTBWd6BIcaECo84Wlz88P5WJXFtsUv06EJ8CUm6wE0I2bycD4xH7W9mhTjRf9HgtklizRvHNjChsJDAweU3Q0oO5M1bY0-QjnZvHXo5KA)

**Step 3**. Paste the URL of your Ecommerce in the Fizen Pay’s **New Webhook Subscription** modal, then click **Save**

![](https://lh6.googleusercontent.com/8uSF3-tQDiHHweq92_kY7SirMzCFO7HjSTbUtwvbOmZugWhUMUegZUgoU_2o0NIest36-tVv93CNdf3TIBGeCqXslbEaJq5q8ozF-SQafnkii4VlhM22drP89ikRh6nEfoJorputs-UCF8XY3P_OTxA)

**Step 4**. Click **Shared secret** button

![](https://lh4.googleusercontent.com/7-V-VCsxTA2mjOXq6gLMfiJZHdpDtnYH68EyaekhJkrKbGoJ_v4xqYP0BK9ZP_7RUqN09psUl1wmNbKAUrDYYfvqfzzgFJYTyEIXIQz2w1oEq1cUInxGPHwMtxvT9dF9XQtvuyGubrgSCuFc8upLt5A)

and **copy** the Webhook shared secret. Save the Webhook shared sacred to your Ecommerce settings page.

![](https://lh4.googleusercontent.com/lF8XPt_BP9ZhUX-ZV3tA3IQ8HWPhEMh4UwXJ0pvv8RrEHnDDuNhb0vCASdyQl-gre2kF8pAS3-jZOSvt57mYk30t3NJLm0E-ngtp1HMNqoaizW-MxG0RJ4r33_PkFb_SIf47Bpk_VNGz27qJmxgtboA)

Currently, Fizen Pay is supporting Woocommerce and Prestashop plugins. You can find the detailed installation guidelines here: 

WooCommerce:

* Merchant account (Mainnet):[ Fizen Pay Installation Guideline for WooCommerce - Merchant account (mainnet).pdf](https://drive.google.com/file/d/1nTXLi0HpQCMJwqOt3d3uHEKwHnIFtNb5/view?usp=sharing)
* Test mode:[ Fizen Pay Installation Guideline for WooCommerce - Test mode.pdf](https://drive.google.com/file/d/1e4DQ9V0hFqaW0cI1yUkt-RhcSAENme0T/view?usp=sharing)

PrestaShop:

* Merchant account (Mainnet):[ Fizen Pay Installation Guide for Prestashop - Merchant account (mainnet).pdf](https://drive.google.com/file/d/1tj3iukSLJQCV2e7STmmxBte4VqZ48XjD/view?usp=sharing)
* Test mode:[ Fizen Pay Installation Guide for Prestashop - Test mode account.pdf](https://drive.google.com/file/d/1cMDCFQviCIdIz9WSVF8Lo9QkBa9e9Iwr/view?usp=sharing)