> ## Documentation Index
> Fetch the complete documentation index at: https://docs.rc.cleverhub.co/llms.txt
> Use this file to discover all available pages before exploring further.

# Add Hello Clever to OpenCart

> Download and install the Hello Clever payment gateway plugin for OpenCart, configure your API credentials, and verify the checkout integration is live.

This page walks you through adding and configuring the Hello Clever payment gateway on your OpenCart store. By the end of these steps, Hello Clever will appear as a payment option on your checkout page, giving your customers a fast and secure way to pay.

## Requirements

<Info>
  Hello Clever is currently available for OpenCart merchants with store addresses in **Australia**. Only **AUD (Australian Dollars)** is supported at this time.
</Info>

* **OpenCart version**: 2.3.0 or greater. You can verify your version in the bottom centre of the OpenCart Admin Dashboard.
* **Store currency**: AUD.

***

## Installation

<Steps>
  <Step title="Download the plugin">
    Download the Hello Clever OpenCart plugin and save the file (for example, `clever-opc-v3.ocmod.zip`) to your local machine.
  </Step>

  <Step title="Log in to the OpenCart Admin Portal">
    Navigate to your OpenCart Admin Portal and log in with your admin credentials.
  </Step>

  <Step title="Upload the plugin">
    1. Go to **Extensions > Installer** from the left-hand menu.
    2. Click the **Upload** button.
    3. Select the downloaded plugin file and upload it.
    4. Once the upload succeeds, the plugin will appear under **Install History**.
  </Step>

  <Step title="Enable the plugin">
    1. Go to **Extensions > Extensions**.
    2. From the dropdown menu, select **Payments**.
    3. Locate **Hello Clever Gateway** in the list and click **Install**.
    4. Once installed, click the **Edit** button to open the plugin configuration.
  </Step>

  <Step title="Configure the plugin">
    Fill in the following fields:

    * **API Mode**: select `Sandbox` for testing or `Production` for live use.
    * **API Key**: copy from your Hello Clever Merchant Dashboard.
    * **Secret Key**: copy from your Hello Clever Merchant Dashboard.

    Click **Save** to finalise the configuration.
  </Step>

  <Step title="Apply modifications">
    1. Navigate to **Extensions > Modifications**.
    2. Click the **Refresh** button to reload the cache and apply the plugin modifications.
  </Step>
</Steps>

***

## Verify the integration

Once the setup is complete, navigate to your store’s checkout page. Hello Clever will appear as a payment option, and customers can use it to complete their purchases seamlessly.

<Tip>
  If Hello Clever does not appear at checkout after completing the steps above, return to **Extensions > Modifications** and click **Refresh** again to ensure the plugin’s modifications have been applied correctly.
</Tip>


## Related topics

- [Get Started with Hello Clever](/getting-started/overview.md)
- [Choose the Right Hello Clever Integration](/integrations/choosing-integration.md)
- [Add Hello Clever to Shopify](/integrations/shopify.md)