# Javascript SDK

You can use the **i'mport JavaScript SDK** to open the payment or identity verification window from your website or app. For **version history** and notable changes in each version, refer to the [**Release Notes**](https://portone.gitbook.io/docs-en/sdk/javascript-sdk/sdk-release-note).<br>

### Loading SDK Library <a href="#sdk-library" id="sdk-library"></a>

To use the **i'mport JavaScript SDK**, you must first load the library on the page as shown below. It is recommended to load it from the CDN (<mark style="color:purple;">**<https://cdn.iamport.kr/js/iamport.payment-{SDK-latest-version}.js>**</mark>). When the library is loaded, you can call **IMP** functions by accessing the **IMP** global object as a property of the **window** object.

{% code title="HTML" %}

```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 %}

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

> #### **If you cannot use CDN**, use the following: [https://service.iamport.kr/js/iamport.payment-](https://service.iamport.kr/js/iamport.payment-1.2.0.js){SDK-latest-version}[.js](https://service.iamport.kr/js/iamport.payment-1.2.0.js)