Hosted checkout
Customers pay on the PayLio checkout. No card data reaches your server.
PayLio for OpenCart
Card payments for OpenCart.
Add a card checkout to your OpenCart 4 store. The order status changes as soon as PayLio has confirmed the payment.
Version 1.0.1 · 45 KB · GPL-2.0-or-later
Requirements
- OpenCart 4.0.2 or newer (4.0.2.x, 4.1.x)
- PHP 8.0 or newer with cURL
- Store URL on HTTPS
- OpenCart cron running hourly
- A PayLio API key and a Polygon wallet
Installation
Live in a few minutes
Settings: Extensions › Extensions › Payments › PayLio
- 1Download paylio.ocmod.zip from this page.
- 2Open Extensions › Installer, upload the file and click Install.
- 3Open Extensions › Extensions › Payments, install PayLio and click Edit.
- 4Paste your API key, click Test connection, switch Enabled on and save.
- 5Make sure the OpenCart cron runs every hour.
What the plugin does
Built so every order is paid exactly once
Verified payments
Signed webhook plus a server-to-server status check of amount and currency before the order is marked paid.
Automatic recovery
Scheduled status checks catch a missed webhook, and you can re-check any order from the admin.
USDC payouts
Payouts arrive as USDC on Polygon. Choose who pays the processing fee.
Settings
The same settings on every platform
Every PayLio plugin uses the same settings, so switching platforms or running several shops stays simple.
API key and connection test
Paste the key from Dashboard › API Keys and check it with one click.
Payment provider
Let the customer choose from all providers, or fix one. Minimum amounts are shown in the list.
Processing fee
Include it in your price or add it to the customer's total.
Order handling
Status after payment, automatic cancellation of unpaid orders where the platform supports it.
Checkout look
Title, description and payment icon, in English and German.
OpenCart FAQ
Which payment methods do customers get in OpenCart?
Customers pay by Visa or Mastercard, and with Apple Pay, Google Pay or local methods where the provider handling the payment supports them for the customer's country and amount. The PayLio checkout only shows the options that fit.
When is the order marked as paid?
Only after PayLio has confirmed the payment server-to-server. The plugin receives a signed webhook, asks the PayLio API for the payment status and checks amount and currency before it marks the order as paid. A lost webhook is caught by the plugin's scheduled status check.
What do I receive and when?
Your payout arrives as USDC on Polygon in the wallet from your PayLio dashboard, or in the payout wallet you set in the plugin. You can choose whether the processing fee is included in your price or added to the customer's total.
Does the customer come back to my shop after paying?
Yes. Once the payment is confirmed, the PayLio checkout shows a "Back to" button and returns the customer to the order page after a few seconds. That page checks the status itself, so arriving there never marks the order as paid.
Does card data touch my server?
No. The customer is redirected to the PayLio checkout and pays on the provider's page. Your shop only stores the PayLio payment id and status.
More integrations
PayLio works with the tools you already use
Also available for WooCommerce, PrestaShop, Magento 2 and more, plus a REST API for custom backends.