Splitit allows merchants to offer personalized installment payments for their customers anytime and anywhere, using their existing credit card, with no changes to the merchant’s risk.

The Splitit service works as an intermediate layer between the merchant’s platform and his/her existing payment gateway; new installment transactions are sent to Splitit (instead of being sent to the gateway) and we relay the transaction to the existing gateway

Developers - Gateway

Our documentation is designed to help programmers integrate with Splitit API as fast and easy as possible, using one of our integration methods.

Splitit Checkout Workflow

In order to better understand how you should integrate us into your own workflow, let’s take a look first at the transaction flow while using Splitit:

  1. The shopper inserts his personal details on your checkout page and selects Splitit as the payment method he would like to pay with.
  2. The shopper inserts his credit cards details and choose the payment period for his installment plan.
  3. The shopper reviews the payment schedule and approves the Splitit T&C’s.
  4. Transaction done!

Now that the process is (hopefully) clear, you can implement it in different ways, depending on how deep you would like to go into the coding, if you PCI compliance or not, if the UI/UX is the #1 priority in your platform…


  • For your integration, please make sure you have received the API user credentials for your account and the ApiKey for your terminal/s. If you do not have those parameters, please feel free to contact our onboarding team at onboarding@splitit.com.
  • Please make sure to review the Introduction in our API documentation, for general understanding of methodology use. Click here for more details.

Which Integration Method to Choose?

Splitit propose you 4 ways to integrate with our platform:

Credit Card Supported

Splitit currently supports the following Credit Cards:

Credit Cards Country of Issue
VISA Worldwide
 Excludes Countries Prohibited  by Visa and MasterCard
 Debit and PrePaid Cards are not supported by Splitit.

Gateways Supported

Splitit currently operates on the following payment gateways:

  • Adyen
  • Authorize.Net
  • Balanced
  • Beanstream
  • BluePay
  • BridgePay
  • CardConnect
  • Cardknox
  • Chase Paymentech
  • Checkout.com
  • Convenient Payment
  • CyberSource
  • Elavon
  • EZIC
  • First Pay
  • First Data Global Gateway
  • Global Transport
  • Heartland Payment Systems
  • Jetpay
  • Litle
  • Merchant e-Solutions
  • Mercury
  • NETbilling
  • NMI
  • Optimal Payments
  • PayVision
  • Plugnpay
  • QuickBooks Merchant Services
  • Quantum
  • Sage Payment Solutions
  • SecureNet
  • TNS
  • TrustCommerce
  • TSYS
  • USAePay
  • Velocity
  • Wepay
  • WorldPay


If we do not support your gateway, please contact us at support@Splitit.com

System Status

Keep track and stay updated with our system status by following our status page: https://www.splitit.com/status

Start growing your business today!

To open an account with Splitit, please make sure you meet the following criteria: Your business has a monthly turnover of $15,000 or more and already in operation for at least 2 years. Applicable? Give our sales team a call on 1-844- Splitit

Schedule a live demo