Accept payments with Finix on OpenCart.

OpenCart is a free, open-source eCommerce platform used by merchants worldwide to build and manage online stores. It offers a modular extension marketplace, multi-store and multi-language support, and a flexible admin panel for managing products, orders, and payments. Finix integrates with OpenCart through the Cybersource payment gateway, enabling merchants to accept payments directly within their OpenCart storefront and reconcile transaction data within their Finix Dashboard.
- Finix Live Account
- Active OpenCart store
To create a Finix account, you can follow our step-by-step guide or sign up directly for a live or sandbox account.
We recommend choosing Direct Merchant as your Customer Type.
Finix supports OpenCart via our Cybersource Gateway integration. Please note that there is an additional fee for using our Cybersource integration.
For more information, please reach out to your Finix point of contact.
- To create a Cybersource integration, navigate to the Integrations page on your Finix Dashboard.

- Sign up for Cybersource. You can view detailed instructions in our guide, here.
- After accepting the Cybersource invitation email, retrieve the following credentials from the Cybersource Business Center under Payment Configuration → Key Management — you'll need these to configure OpenCart:
- Merchant ID (also called Organization ID)
- REST API Key

Before you proceed, ensure you have:
- Approved Finix Merchant Account
- Cybersource Gateway Integration linked to your Finix Merchant Account
- Cybersource credentials from Step 2
- OpenCart version 3.0.3.7, 3.0.3.8, or 3.0.3.9
- Administrator access to your OpenCart Back Office
Download the official Cybersource plugin from the OpenCart Marketplace as a .zip file. For full installation details, refer to the Cybersource OpenCart developer documentation.
To install:
- In your OpenCart Back Office, navigate to Extensions → Installer.
- Click Upload and select the
cybersource.ocmod.zipfile. - Confirm the upload progress reaches 100% and the file appears in the installed extensions list.
- Navigate to Extensions → Extensions and select Modules from the extension type dropdown.
- Locate Cybersource Configuration and click Install.
Navigate to Extensions → Payments → Cybersource → Edit and enter the following:
General Configuration:
- Merchant ID — your Cybersource Organization ID from Step 2
- Merchant Key ID — your REST API Key ID from Step 2
- Merchant Secret Key — your REST API Shared Secret from Step 2
- Sandbox Mode — enable for testing, disable for live payments
- Fraud Management — enable to activate Cybersource Decision Manager
- Device Fingerprint — enable for enhanced fraud detection
- Enhanced Logs — enable for detailed transaction logging
Report Configuration:
- Payment Batch Configuration — enable or disable batch payment reporting
- Transaction Request Report — enable or disable transaction request reporting
- Conversion Detail Report — enable or disable; if running manual fraud reviews in Cybersource, this will pull fraud updates into OpenCart
After completing configuration, you can now take payments through Finix via our Cybersource Gateway Integration.
To learn more about our Cybersource Gateway Integration, you can read our guide.
If you need additional assistance contact support@finix.com.
When you run a transaction on OpenCart, you'll see it:
- In your OpenCart admin under Sales → Orders.
- In the Cybersource Business Center.
- In your Finix Dashboard under Transactions → Payments.
These transactions will be ingested by Finix and added to Settlements. To track transfers between Finix and Cybersource, please refer to our guide, here.