Online payments

Accept payments with cards, bank transfers, wallets and other global and local payment methods.

To accept online payments, you need to connect your shop with Unzer using one of the available solutions.

Choose an integration option

You can integrate with our payment system in several ways: using plugins, with pre-built UI components, or configurable payment page. You can also build your own payment form.

The quickest way to integrate with Unzer without programming knowledge. Available for popular eCommerce solutions.

Payment pages ›
Pre-built, configurable all-in-one pages combining your chosen mix of payment methods.

UI Components
Pre-built, customizable payment forms. A convenient way to integrate with minimum work on the client-side.

Server side-only
If you want full control over payment form look and behavior you can build your own UI and connect with the Unzer API on the server-side.

We classify integration options based on the client-side part of the integration. Whatever option you choose, you can implement the server-side of the integration using one of the supported server-side technologies (direct API, PHP SDK, Java SDK).

Manage payments

After you have finished the basic integration and can accept payments, you can perform various operations on them, such as checking the status, submitting products and customer information, and refunding. These operations can be implemented through the Unzer API using one of the supported server side technologies.

Manage API resources (direct API calls)
Learn how to manage API resources using direct API calls

Manage API resources (PHP SDK)
Learn how to manage API resources using Unzer PHP SDK

Manage API resources (Java SDK)
Learn how to manage API resources using Unzer Java SDK

Regardless of your server side choice, read Server side integrations page first and check the Unzer API basics.


To accept card payments, you need to meet certain data security related standards required by the Payment Card Industry organization and the European Union. These are commonly known as PCI compliance and PSD2 compliance.

Learn more about Compliance

See also

Supported payment methods

Integrate using payment pages

Accept payments using customizable payment page prepared by Unzer.

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Integrate using UI components

Accept payments through UI components created by Unzer.

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Integrate using server-side-only integration

Accept payments with your custom-created payment form

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Platform Operator & Marketplaces

Learn how to manage transactions as a platform operator and marketplace merchant.

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Learn more about PCI compliance and PSD2 regulations.

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Supported payment methods

Check available integration options for all payment methods provided by Unzer

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Integration checklist

Check your integration with the following checklist be sure that your integration is complete.

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Go-live checklist

Check your integration with the following checklist before you go live.

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