Select the checkout that fits your business needs.
There are two ways to integrate PayPal as an Additional Payment Option.
Option 1: Express Checkout
Express Checkout is highly recommended for merchants familiar with API programming. Express Checkout is a powerful, API-based payment solution that can be tightly integrated into any merchant website. With Express Checkout, your customer uses the shipping and billing information they've already stored with PayPal – so they don't have to reenter it with every purchase.
After you integrate your solution, it's important to test it properly. PayPal lets you test transactions for more complex integrations at the PayPal Testing Environment.Not sure if PayPal as an Additional Payment Option is for you? Compare all our solutions.