Square Payments

OpenCart Integration

  • Square Payments - OpenCart Integration
This is the official Square OpenCart integration developed by iSenseLabs.

Integrating Square with OpenCart is simple and seamless; no coding required.


Square extension come with two types of Support: 

Free Support which covers:
  • General pointers on how to update to the respective version
  • General pointers on how to install the module
  • General connection configuration between Square and OpenCart (for custom setups it will need to go through Paid Support) 

Premium Support which covers:
  • Server setup and CRON specific issues
  • Inventory and Catalog Sync issues
  • Specific setup configuration support
  • Specific cases not listed in the free support section

New Major Update Released! (Aug 30, 2018)

Apple Pay

Now available in Square for OpenCart. Out-of-the-box integration. No additional configuration required.

Square Catalog & Inventory Sync

All changes in your OpenCart products automatically sync with the Square Items Library and Square inventory.

Automatic Refund & Re-Stock

Square now lets you refund individual items in orders and re-stock items automatically.

Automatic Currency Conversion

Automatically convert the transaction amount to the Square location currency based on your OpenCart currency values.

Square Order Reports

Orders made with Square are logged in the Square App Dashboard with all your OpenCart order details accurately logged.

Square Security

Win your customer's trust with the Square security badge displayed in the Credit Card form at checkout.

Card Payments

- are currently only available for merchants based in the U.S., Canada, Australia, Japan and the UK.

Contact Square for Transparent Pricing:


  • Transparent Pricing: No Monthly Fees or Surprises.

    Transparent Pricing: No Monthly Fees or Surprises.

    Pay one flat rate- 2.9% + $.30 (2.5% for UK, 2.2% for AU, and 3.6% for JP) per online transaction for any card, including American Express. Custom rates available for some businesses with annual revenues over $250K and an average ticket size over $15.

  • Fast Deposits

    Fast Deposits

    Get your money in your bank account in 1-2 business days.

  • Dispute Assistance

    Dispute Assistance

    Square covers up to $250 in qualifying chargebacks per month and helps resolve chargebacks for you, so you can focus on your next sale.

  • PCI Compliance

    PCI Compliance

    Square complies with the PCI-DSS standards and there are no fees.

  • Sell Online and in Person

    Sell Online and in Person

    Sell online and in person, and see all your sales in one place. Square’s beautiful readers accept all major cards, Apple Pay, and Android Pay, while the free Square Point of Sale app makes checkout a delightful experience for both you and your customers.

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You helped big time! You guys are awesome, thanks again.

Jonathan Lelito, Ditch Cable NowOctober, 2017

The support that the staff at iSenseLabs has been GREAT!!!! This was the first time trying out the app for Square with our OpenCart sites and we had an issue right away with it, but the support team was not about to give up on me! They dove in deep to help figure out what was going on and with the help of my hosting provider we determined that it was a PHP issue (which hopefully will be recorded so you can help others if they have this issue in the future!). I would highly recommend anyone to use your software with the confidence in knowing that support is there to help! THANK YOU!!!!!

Chris Diamond, stlouisdance.comJanuary, 2018

Outstanding Support. First time ever looking for any kind of support and you did all for nothing. Sometimes this kind of support is impossible to find in several paid apps. Again Thanks!

Guadalupe Caracheo, productoscaracheo.comOctober, 2018