Nabeyond ltd t/a CartDNA is a CartDNA is a Shopify Payment App Development Partner
Many banks, payment providers and financial institutions already trust Cardstream as their white label payment gateway. The challenge comes when merchants want to sell on Shopify while continuing to use their existing Cardstream-powered payment platform.
The good news is that this is possible through a custom Shopify Payment App. Instead of changing payment providers, businesses can connect their existing Cardstream gateway directly into Shopify's native checkout, allowing customers to complete payments without disrupting existing acquiring relationships.

Connecting Cardstream to Shopify using a custom Shopify Payment App
Cardstream is one of the UK's largest independent white label payment gateway providers. Unlike traditional gateways that focus on merchants alone, Cardstream was designed specifically for financial institutions, payment service providers (PSPs), acquiring banks, ISOs and software companies looking to launch their own branded payment platform.
Its Open Payment Network allows partners to connect to multiple acquirers, payment methods and financial services through a single API. This significantly reduces development costs while giving organisations complete control over their own payment brand.
Building a modern payment gateway requires years of development, PCI compliance, security audits, certification, fraud management and continuous maintenance.
Cardstream removes this complexity by allowing banks and financial institutions to launch a fully branded payment gateway without starting from scratch.
This allows financial organisations to focus on acquiring merchants rather than maintaining payment infrastructure.
Shopify does not provide a native Cardstream payment integration out of the box.
Instead, merchants can connect Cardstream using a custom Shopify Payment App built using Shopify's Payments Apps framework.
A professionally built integration allows merchants to:
This approach is particularly valuable for banks, payment providers and enterprise merchants that already operate on Cardstream.
Cardstream's platform is widely used across the UK payment industry through direct integrations, acquiring partnerships and white label solutions. Below are some of the best-known organisations that commonly work with Cardstream-powered payment services or integrations.
HSBC is one of the world's largest banking groups and provides merchant acquiring services for businesses worldwide. Cardstream enables merchants using HSBC merchant accounts to benefit from flexible gateway technology while keeping their existing banking relationship.
Global Payments is one of the world's leading payment technology companies. Organisations using Global Payments acquiring services can leverage Cardstream's gateway to access modern payment features, reporting and white label capabilities.
Barclaycard is one of the UK's largest merchant acquirers. Cardstream has worked closely with Barclaycard through dedicated onboarding and merchant programmes, helping businesses connect Barclaycard merchant accounts with Cardstream's gateway platform.
AIB Merchant Services supports businesses across Ireland and Europe. Many merchants choose Cardstream to provide gateway functionality while maintaining their existing acquiring relationship with AIB, creating a flexible and scalable payment solution.
Bank of Scotland provides commercial banking and merchant services to thousands of UK businesses. Businesses using Bank of Scotland merchant services can benefit from Cardstream's gateway technology to improve payment acceptance, reporting and integration flexibility.
Worldpay is one of the largest global merchant acquirers. Cardstream supports multi-acquirer environments, allowing businesses working with Worldpay to benefit from advanced gateway features while continuing to process through their preferred acquiring relationship.
Elavon provides acquiring services across Europe and North America. Cardstream's Open Payment Network allows merchants connected to Elavon to access modern gateway capabilities, recurring payments, tokenisation and enhanced reporting.
First Data, now part of Fiserv, remains one of the largest payment processing organisations globally. Many payment providers integrate Cardstream alongside First Data acquiring services to deliver flexible payment acceptance and simplified merchant onboarding.
Cashflows has recently strengthened its strategic relationship with Cardstream to accelerate embedded payments and PayFac-as-a-Service across the UK and Europe. The partnership combines Cashflows' acquiring expertise with Cardstream's payment infrastructure, making it easier for software platforms, ISVs, ISOs and Payment Facilitators to launch embedded payment solutions.
Merchants already processing through Cardstream often do not want to replace their acquiring bank simply because they move to Shopify.
A custom integration allows them to preserve:
This significantly reduces migration risk.
A Cardstream Shopify integration is ideal for:
Modern ecommerce businesses increasingly need payment flexibility.
Using a custom Shopify payment integration means your business can continue using Cardstream while benefiting from Shopify's powerful ecommerce platform.
Instead of changing your payment infrastructure, you simply extend it.
This protects previous investment while supporting future growth.
Not natively. Cardstream can be connected through a custom Shopify Payment App developed using Shopify's Payments Apps framework.
Yes. One of Cardstream's biggest advantages is its independent architecture, allowing merchants to continue using their preferred acquiring partner.
Yes. Cardstream is widely used by banks, PSPs, payment facilitators and software providers that require scalable, secure and white labelled payment infrastructure. Cardstream®
Yes. Cardstream's Open Payment Network supports multiple acquirers, currencies and payment methods, making it suitable for businesses operating across international markets.
If your business already uses Cardstream, there is no need to replace your existing payment infrastructure. CartDNA specialises in custom Shopify Payment App development, helping banks, PSPs, payment facilitators and enterprise merchants connect Cardstream directly to Shopify's native checkout.