Square Payment Gateway Module for WHMCS

“Limited: $19.99 first year with code 20inFebruary (renews $79). New signups only. Ends 2026-02-28."

Automate your sales flow by taking full advantage of the powerful Square API at no additional subscription cost.

"This module is a swiss army knife! Once I stopped seeing it as just a payment link but as a malleable APP and let it take full advantage of the API—let it pull its weight—I could focus on growing, not creating links, sending license renewals, or managing subscriptions." WNH dev@ hoxt.pro

What It Does

Generates offsite Square Payment Links per invoice (Sandbox and Production)
White Label: Fully customizable for developers, or request free installation/updates from our team
Automatically searches Square Orders by reference_id to mark invoices paid
Includes branded invoice card, callback handler, and whmcs.json metadata
No card data handled by WHMCS; uses Square Orders and Payments scopes
No demo required. This is a production-ready implementation used at checkout.

Licensing & Purchase Options

This listing represents the annual license for the hoXtPro Square Payments Gateway.

“Special offer: $19.99 for the first year with code 20inFebruary (renews $79). New signups only. Offer valid through 2026-02-28.”

Annual Price: $79/year

A Lifetime License is also available directly from hoXtPro for customers who prefer a perpetual license. Free installation and ongoing update support available.

Delivery & Support

After purchase, hoXtPro emails a secure download link for the module ZIP along with setup instructions and your license key.

Support: customercare@hoxt.pro (24/7) or via the client dashboard
Sales: sales@hoxt.pro

Requirements

WHMCS 8.x or later
Square account with API access
- Square Application ID
- Square Access Token (Orders + Payments permissions)
- Square Location ID

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Version Compatibility

Compatible with WHMCS v9.0

Full Version Compatibility

Selected versions of WHMCS v9.0
9.0.0
All versions of WHMCS v8.13
All versions of WHMCS v8.12
All versions of WHMCS v8.11
Selected versions of WHMCS v8.10
8.10.0
Selected versions of WHMCS v8.9
8.9.0
Selected versions of WHMCS v8.8
8.8.0
All versions of WHMCS v8.7
All versions of WHMCS v8.6
All versions of WHMCS v8.5
All versions of WHMCS v8.4
All versions of WHMCS v8.3
All versions of WHMCS v8.2
All versions of WHMCS v8.1
All versions of WHMCS v8.0

System Requirements

A_WHMCS 8.x or later
B_Square account with API access
b1_Square **Application ID**
b2_Square **Location ID**
b3_Square **Access Token** (Orders + Payments permissions)

* Requirements listed are in addition to the WHMCS default system requirements.

Support for this product

The best place to start if you need help with a specific product is to contact the developer. All WHMCS Marketplace developers have both a website and support URL listed.

Visit Website Contact Support

Developed By hoXtPro

Changelog

v1.0.0 Released January 31st, 2026

Latest Version

Changelog

v1.0.0

Initial public release
Offsite Square payments via Square Payment Links
Automatic invoice reconciliation using reference_id
Supports Sandbox and Production environments
Secure callback-based payment verification
No cardholder data processed by WHMCS
Compatible with current Square Orders and Payments APIs