# What are Payment Providers?

Payment providers are essential for your Umbraco Commerce installation when you want to give users and customers the option to pay for your products.

By default, Umbraco Commerce includes the [Invoice](https://docs.umbraco.com/umbraco-commerce-payment-providers/invoicing/invoicing) and [Zero](https://docs.umbraco.com/umbraco-commerce-payment-providers/zero/zero) payment providers. You can also explore additional pre-built integrations to expand your payment options.

## Available integrations

<table data-view="cards"><thead><tr><th align="center"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td align="center"><strong>Klarna</strong></td><td><a href="klarna/klarna">klarna</a></td></tr><tr><td align="center"><strong>Mollie</strong></td><td><a href="mollie/mollie">mollie</a></td></tr><tr><td align="center"><strong>Nets</strong></td><td><a href="nets/nets">nets</a></td></tr><tr><td align="center"><strong>PayPal</strong></td><td><a href="paypal/paypal">paypal</a></td></tr><tr><td align="center"><strong>QuickPay</strong></td><td><a href="quickpay/quickpay">quickpay</a></td></tr><tr><td align="center"><strong>Stripe</strong></td><td><a href="stripe/stripe">stripe</a></td></tr><tr><td align="center"><strong>Opayo</strong></td><td><a href="opayo/opayo">opayo</a></td></tr><tr><td align="center"><strong>Worldpay</strong></td><td><a href="worldpay/worldpay">worldpay</a></td></tr><tr><td align="center"><strong>Buckaroo</strong></td><td><a href="buckaroo/buckaroo">buckaroo</a></td></tr></tbody></table>

## Using These Docs

These documents are designed for developers and users with a basic understanding of [Umbraco](https://umbraco.com) and its backoffice principles.