Requirements

Verify that your server environment satisfies the requirements below before installing RelyPay. An active ionCube Loader is mandatory to execute encoded module files.

Server and software

Requirement	Details
PHP	8.2 or newer (runs on 8.2, 8.3, 8.4 and 8.5)
WHMCS	8.13 or newer, or 9.x
Admin access	A Full Administrator account; the addon must be granted access to your admin role
ionCube Loader	13.0.2 or newer (see below)
PHP extensions	curl, openssl, json, zip, mbstring
SSL certificate	Required for provider webhook endpoints
A provider account	At least one of Razorpay, Cashfree, PhonePe, PayGlocal or Zoho Payments
License	An active RelyPay license

The ionCube Loader

RelyPay requires the standard ionCube Loader PHP extension used by WHMCS:

• Module compatibility: Executes encoded addon files.
• Built-in support: Standard on most WHMCS hosting environments.

Install ionCube Loader 13.0.2 or newer matching your active PHP version:

• PHP 8.2: Loader 13.0.2+
• PHP 8.3 / 8.4 / 8.5: Loader 14.4.0+ or 15.x
• Cross-version build: A single RelyPay package supports all compatible PHP and loader releases.

RelyPay will not run without ionCube

If the loader is missing or outdated, PHP halts with: This product requires the ionCube PHP Loader. Request that your web host enables ionCube Loader 13.0.2 or newer for your PHP runtime.

Why a provider account and SSL

Live payment processing and asynchronous callbacks require:

• Provider account: At least one active account with Razorpay, Cashfree, PhonePe, PayGlocal, or Zoho Payments.
• HTTPS endpoint: Valid SSL certificate on your WHMCS domain to receive encrypted provider webhooks.

Why Full Administrator access

WHMCS controls addon module access by administrator role:

• Role assignment: Grant access to Full Administrator (and other designated payment management roles) during activation.
• Access Denied resolution: If RelyPay pages display Access Denied, update permissions under Configuration → System Settings → Administrator Roles.

Why a license

RelyPay requires an active license. You enter your key after activation — see Installation — and manage it later under Addons → RelyPay → Global Settings → License Information. See Licensing for how the license types work.

How to check

You don't need to guess at any of this:

• PHP version and extensions — open Utilities → System → PHP Info in the WHMCS admin, or ask your host. Confirm PHP 8.2+ and that curl, openssl, json, zip and mbstring are loaded.
• ionCube Loader — the same PHP Info page lists the ionCube Loader and its version if it is installed. If you can't find it, it isn't enabled.
• WHMCS version — shown in the WHMCS admin footer, and under Help → System Health Status.
• SSL — load your storefront and confirm the address bar shows https:// with a valid certificate.

Ready to install?

Once your server checks out, head to Installation for the step-by-step activation walkthrough.