Integrated Payment Processing for Any Application on the IBM i Series (AS/400)

Seamlessly process credit and debit card payments on your legacy infrastructure

Discover the Options

Curbstone’s payment integrations let you easily process credit and debit card payments within your IBM i applications.


You don’t have to change your existing processes. Instead, add payments to your existing workflows and save time on every transaction. Real-time authorizations and automated daily batch settlement make your efforts faster and easier.

Payment Technologies Created Exclusively for Businesses on the iSeries

As an IBM Registered Business Partner, we focus exclusively on the AS/400 (iSeries) – and have done so for more than 20 years. Time-tested and trusted by hundreds of IBM-driven companies, our RPG-native payment software lets you easily process credit and debit cards on your legacy technologies.

We speak your language – which gets you to your end goal more quickly. We don’t just hand you documentation and send you on your way. Curbstone knows the iSeries inside and out and will support you through your entire project.

Keep Sensitive Payment Data Off Your AS/400

Enter your customers’ payment data in the applications you already use. From there, our technologies transmit it to the authorization network. You don’t process, store, or transmit the data on your iSeries applications or web servers, taking most – if not all – of your existing infrastructure out of scope for PCI compliance. Your team can avoid the longest, most complicated security questionnaires while providing a higher level of security for your customers’ data.

Learn more about Curbstone for PCI compliance

Payment Tokenization for the IBM iSeries

Once you process a payment, the customer’s data is sent to our secure portal. You store secure remote tokens – not card numbers or security codes – on your iSeries, letting you easily process future transactions without having to manage sensitive data or the accompanying risks. You retain full ownership of your data and can request it at any time.

Find out how Curbstone can take your IBM i out of scope for PCI reporting and audits.

IBM i Tokenization

Full Support for All Your Transactions

Our IBM i payment technologies support all the ways you do business: over the phone, by mail, in person, and online. Whether you’re processing payments via EMV terminals in your retail stores, an online shopping cart on an e-commerce platform, or on a virtual terminal at a call center, Curbstone gives you all the tools you need to accept card-present and card-not-present payments.

Unlimited Operational and Technical Support

Our IBM i-native payment processing technologies are designed to make integration simple – and our support team is here 24x7 to answer any technical or operational questions you may have. Whether your issue is with your bank, acquirer, authorization network, RPG program, or third-party provider, we’ll help you get the answers you need as quickly as possible.

Learn More about IBM i Series / System i / AS/400 Payment Processing

Find out why hundreds of businesses that run on the AS/400 use Curbstone for payment processing – and what our technologies can do for your business. Discover our integrated credit and debit card solutions:

A Trusted Member Of The Payments Industry