How would I integrate this service into my existing website?

Most Easy Pay Direct customers use a third party shopping cart to accept payments on their website (See the full list of supported shopping carts).

However, you can also use the “Quick Click” option to sell items directly on your website.  Most merchants have their webmaster setup the Quick Click options for them.  This will allow you to customize the look and feel of the order forms, payment options offered, required fields for your customers and more.