magento2怎样获取DHL的API呢？怎样获取DHL运费信息？

网上查了很久，以下是最接近问题答案的，可惜没能解决问题。
方法一、

Setting Up Magento 2.0 Default DHL Shipping Extension - XAdapter Overview DHL Express is a division of the German logistic company Deutsche Post DHL providing domestic and international express mail services. Deutsche post is the world’s largest logistics company operating around the world, particularly in sea and air mail. With the plugin, you get the real time rate using DHL API. Rate depends on box dimension, weight and address of shipper and receiver. […]

https://www.xadapter.com/setting-up-magento-2-0-default-dhl-shipping-extension/

方法二、

Applying for DHL Site ID and API Password : Shiptheory Support To automate DHL labels, you need a DHL Site ID and API password. These are different from your normal DHL website login details. To apply for your DHL Site ID and API Password please contact your DHL Account Manager who will send a formal re... https://support.shiptheory.com/support/solutions/articles/6000110860-applying-for-dhl-site-id-and-api-password

DHL的API需要官方提供吗？没有其它方法？因为我的magento2集成了墨西哥第三方物流pak2go（用DHL方式）