Cardknox Go – Payment Facilitator

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Plug Into the Power of Cardknox With Our Payfac-As-a-Service Solution!

A robust plug-and-play payment infrastructure for software developers

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Seamless onboarding

Send pre-filled, electronic applications to your merchants. Set up new clients without the headaches of paperwork or signatures.

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Instant account approval

Skip the manual underwriting process with instant approval for your merchant accounts. Our system will run Know Your Customer (KYC) checks to verify identity, assess financial health, and monitor risks.

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Simple, flat-rate pricing structure

Transparent and consistent pricing gives your merchants predictability when managing overhead costs — no more surprise charges at the end of the month.

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No monthly statement or PCI fees

Save your merchants time — no more combing through monthly statements to reconcile charges.

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Omnichannel capabilities

Whether your merchants do business online or in-store, they’ll get the flexibility they need while ensuring secure transactions.

White-Glove Customer Service

Cardknox offers a single phone number to get the help you need now — as opposed to other providers who keep you waiting days for an email reply. Our customer support teams are based in the U.S. and deliver a white-glove, hands-on experience — for any type of merchant or developer support.
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The ISV and Developer Experience


Integrate with Cardknox

Easily integrate using our plug-and-play SDK, allowing for set up with just a few lines of code.

Apply for Cardknox Go

Once your business is approved as a Payment Facilitator, we’ll set you up with your account!

Seamlessly Onboard Merchants

Using the Cardknox Partner Portal, you’ll be able to send out pre-filled electronic applications to clients — as well as manage all your accounts in one place.

Instant Approval/Gateway Deployment

Merchants will be instantly approved using our advanced KYC screening technology. Identity, financial health, and overall risk are verified within minutes — no more waiting days for underwriting or hassling with collecting paperwork or signatures.

Load Gateway and Merchant Credentials

We’ll send you a source key for integrating the Cardknox gateway with your software. You are then ready to begin loading your merchant credentials.

Start Processing Payments

Your merchants will receive a welcome email with instructions on how to register for the Cardknox Merchant Portal. Once registration is complete, your clients are instantly set up with a payment processing account.

Cardknox Payments Integrations

A few lines of code is all it takes to integrate our payment API for developers.

In-Store API Payment Integration

Tightly integrate out-of-scope, in-store payments including EMV chip card, ACH, Gift Card, EBT Food Stamp, EBT Cash Benefits, and EBT eWIC.

E-commerce Integration

Enjoy a robust API supporting recurring payments, proprietary card updater, guaranteed fraud decisions, and advanced tokenization. Or choose from shopping cart plug-ins, gateway emulators, and hosted payment forms.

Mobile Integration

Integrate SDK for iOS and Android for card-not-present and card-present mobile transactions with native support for mPOS EMV chip-card hardware and processing.

Take Your Business to the Next Level With Cardknox Go

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Integrate Cardknox Payments With a Few Lines of Code

Tap into Cardknox’s advanced SDK and standalone processing solutions to provide clients with payment solutions that meet their needs.
We’ll take care of risk management, underwriting and onboarding, ensuring that you stay compliant with payment security requirements.
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Manage Sub-Merchant Accounts and Payouts

We’re giving you full control over the sub-merchant payment processing experience. You’ll have access to the Cardknox Partner Portal, an advanced online platform that centralizes the entire payment integration and account management process.

Our Payment Processing Tools

With our wide selection of solutions for online, in-person, and over-the-phone payment processing, you’ll be able to cater to the needs of your clients with greater ease. Cardknox Go supports credit and debit cards (EMV, contactless, magstripe), mobile wallets, ACH, EBT, and more.
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Powerful Analytics at Your Fingertips

The Cardknox Mobile App syncs with your Cardknox Merchant Portal account, keeping you up to date on all of your business’s transactions. Track sales, view batch summaries, generate custom reports, and more.

Ready to become
a payment facilitator?

Reach out to Cardknox today to learn more about our seamless payment solutions for in-store, online, and mobile devices.
Or get started by filling out an application.