> ## Documentation Index
> Fetch the complete documentation index at: https://razorpay-60c89f9a-mintlify-audit-missing-sections-1778528421.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Prerequisites

> **Before you proceed:**

* **OpenCart Changelog**: Discover new features, updates and deprecations related to the Razorpay OpenCart plugin (since Jan 2024).

  * **Troubleshooting & FAQs**: Troubleshoot common error scenarios and find answers to frequently asked questions about the Razorpay OpenCart plugin.

**Before you proceed:**

* Create a [Razorpay account](https://dashboard.razorpay.com/signup).
* Understand the [payment flow](/payments/payment-gateway/how-it-works) process.
* Generate the [API Keys](/api/authentication#generate-api-keys) from the Dashboard. To go live with the integration and start accepting real payments, generate Live Mode API Keys and replace them in the integration.

## Supported Versions

We support the following versions of OpenCart with separate extensions: OpenCart 4, OpenCart 3, OpenCart 2 and OpenCart 1.5.

* **Video Tutorial**: Watch the video before you start integrating the OpenCart plugin with Payment Gateway.

* **Integration Steps**: Check the steps to integrate the OpenCart plugin with Payment Gateway.

## Supported Products

Razorpay OpenCart Plugin is only supported on Web Standard Checkout and the following products:

## Plugin | Payment Gateway | Route | Subscriptions

## OpenCart 1.5 | ✓ | x | x

## OpenCart 2 | ✓ | x | x

## OpenCart 3 | ✓ | x | ✓

OpenCart 4 | ✓ | x | ✓

## Support

* Queries: If you have any queries, raise a ticket on the Razorpay [Support Portal](https://razorpay.com/support/).
* Feature Request: If you have a feature request, create an issue on [GitHub](https://github.com/razorpay/razorpay-opencart/issues/new).

### Related Information

[Address Verification System](/payments/international-payments/address-verification-system)