---
description: Prepare for credit card verification integration.
---

# 1. Prepare for verification

### Add the **i'mport library** to the target page.&#x20;

{% hint style="info" %}
Credit card identity verification is supported in **i'mport JavaScript v1.1.7 or later** versions.
{% endhint %}

{% tabs %}
{% tab title="HTML" %}
{% code title="client-side" %}
```html
<!-- jQuery -->
<script type="text/javascript" src="https://code.jquery.com/jquery-1.12.4.min.js" ></script>
<!-- iamport.payment.js -->
<script type="text/javascript" src="https://cdn.iamport.kr/js/iamport.payment-{SDK-latest version}.js"></script>
```
{% endcode %}
{% endtab %}
{% endtabs %}

{% hint style="danger" %}
You **must install jQuery 1.0 or later version.**
{% endhint %}

### Initialize the `IMP` object using the <mark style="color:blue;">**`Merchant ID`**</mark> on the identity verification page.

{% tabs %}
{% tab title="JavaScript" %}
{% code title="client-side" %}
```javascript
var IMP = window.IMP; // Can be omitted
IMP.init("{Merchant ID}"); // Example: imp00000000
```
{% endcode %}
{% endtab %}
{% endtabs %}
