SnapEX Pay: free crypto payment gateway for WHMCS + 35% referral for developers who install it

[SnapEXPay]

Hi all. We make SnapEX Pay, a crypto payment gateway, and its free WHMCS module (8.x and 9.x): clients pay invoices in USDT (TRC20, ERC20, BEP20) or 50+ other coins, and the invoice is marked paid automatically — by a signed webhook, the client returning from the payment page, or a periodic check. Fee: 1% per payment, no setup or monthly fee; test mode without real money.

If you set up WHMCS for clients: the module has a Partner ID field. Put yours in, and you get 35% of our fee on every paid invoice of that client, for as long as the client is active. Payout from $10 in USDT.

Module and setup guide: https://pay.snapex.pro/integrations/whmcs
Partner program: https://pay.snapex.pro/partners/partner-program-for-integrators

Questions and feedback are welcome here.

[SnapEXPay]

Update, October 2026: Blesta module, permanent deposit addresses, 70+ coins

• Coins: clients can now pay WHMCS invoices in 70+ coins. USDT TRC20 / ERC20 / BEP20 work from $0.50 per invoice; whatever the client pays with, your balance receives USDT.
• Other billing panels: besides WHMCS there are now free modules for Blesta, BILLmanager, FOSSBilling and Paymenter — one account works with all of them.
• Permanent deposit addresses: through the API you can give each client one fixed address for balance top-ups (USDT TRC20/ERC20/BEP20/Polygon, USDC Polygon, BTC, LTC, ETH, TRX). Handy for credit top-ups: no new invoice for every payment.

How the WHMCS module handles two common problems:

1. Underpaid invoice — the SnapEX Pay invoice waits for the rest on the same address (72 hours for USDT) and the WHMCS invoice stays unpaid. If the client never tops up, the received part is credited to your balance and logged in Billing → Gateway Log.
2. Lost webhook — the invoice is also confirmed when the client returns from the payment page and by a background check on cron, so a missed webhook doesn't leave a paid invoice unpaid, and a payment is never added twice.

Fee is still 1% per payment, no setup or monthly fee. There is a test mode, so you can check the setup without real money.

• Module and setup guide: pay.snapex.pro/integrations/whmcs
• Blesta module: pay.snapex.pro/integrations/blesta