CartDNA is a Shopify Payment App Development Partner

CartDNA Logo
Cardstream Shopify Integration Guide

Connecting Cardstream to Shopify: Complete Guide for Banks, PSPs and Merchants

Connect Cardstream to Shopify Without Replacing Your Existing Payment Infrastructure

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.

White label gateway specialist
PCI DSS Level 1 certified
Custom Shopify Payment App
Banks, PSPs and enterprise merchants
Cardstream is one of the UK's largest independent white label payment gateway providers
A custom Shopify Payment App connects Cardstream directly to Shopify's native checkout
Merchants preserve existing acquiring relationships, pricing and settlement processes
Ideal for banks, PSPs, ISOs, PayFacs and enterprise merchants already using Cardstream
Connect Cardstream to Shopify - Complete Integration Guide for Banks, PSPs and Merchants

Connecting Cardstream to Shopify using a custom Shopify Payment App

Why Cardstream Has Become One of the UK's Leading White Label Payment Gateways

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.

Key strengths include

Fully white labelled platform
PCI DSS Level 1 certified
Single API architecture
Hosted and direct integrations
Tokenisation
Recurring payments
Digital wallets
Virtual terminal
Fraud prevention tools
Merchant management portal
Multi-acquirer support
Highly scalable cloud infrastructure

Why Banks Choose Cardstream Instead of Building Their Own Gateway

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.

Benefits include

  • Faster market launch
  • Lower infrastructure costs
  • Proven payment technology
  • Continuous security updates
  • Open API for developers
  • Global payment connectivity
  • Reduced compliance burden
  • Easy onboarding of merchants
  • Support for multiple acquiring banks

This allows financial organisations to focus on acquiring merchants rather than maintaining payment infrastructure.

Connect Barclaycard and Global Payments to Shopify through Cardstream white label payment gateway

Barclaycard and Global Payments merchants can connect to Shopify via Cardstream

Connecting Cardstream to Shopify

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:

  • Keep their existing Cardstream gateway
  • Continue using their preferred acquiring bank
  • Accept payments inside Shopify's native checkout
  • Maintain existing fraud controls
  • Continue settlement with their current acquiring partner
  • Avoid redirecting customers to external payment pages where supported
  • Support Shopify order management and payment lifecycle

This approach is particularly valuable for banks, payment providers and enterprise merchants that already operate on Cardstream.

Financial Organisations That Work With 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

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

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.

Barclays / Barclaycard

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.

Allied Irish Bank (AIB)

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

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

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

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 (Fiserv)

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 (Voice Commerce Group)

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.

Connect HSBC and Global Payments merchant accounts to Shopify through Cardstream payment gateway

HSBC and Global Payments merchants using Cardstream can integrate directly with Shopify

Why Shopify Merchants Want Cardstream

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:

  • Existing merchant accounts
  • Current transaction pricing
  • Settlement processes
  • Fraud management
  • Reporting workflows
  • Banking relationships
  • Operational procedures

This significantly reduces migration risk.

Who Should Connect Cardstream to Shopify?

A Cardstream Shopify integration is ideal for:

Banks
Payment Service Providers
Independent Sales Organisations (ISOs)
Payment Facilitators (PayFacs)
Enterprise merchants
Multi-store retailers
Software platforms
White label payment providers
Marketplaces

Future-Proof Your Payment Strategy

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.

Frequently Asked Questions

Can Cardstream connect directly to Shopify?

Not natively. Cardstream can be connected through a custom Shopify Payment App developed using Shopify's Payments Apps framework.

Can I keep my existing acquiring bank?

Yes. One of Cardstream's biggest advantages is its independent architecture, allowing merchants to continue using their preferred acquiring partner.

Is Cardstream suitable for enterprise businesses?

Yes. Cardstream is widely used by banks, PSPs, payment facilitators and software providers that require scalable, secure and white labelled payment infrastructure. Cardstream®

Can Cardstream support international merchants?

Yes. Cardstream's Open Payment Network supports multiple acquirers, currencies and payment methods, making it suitable for businesses operating across international markets.

Ready to Connect Cardstream to Shopify?

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.

Related Resources