Cryptonly WHMCS Payment Gateway

Add cryptocurrency payments to WHMCS with Cryptonly. The module connects WHMCS invoices to Cryptonly hosted checkout, so customers can pay with Bitcoin, stablecoins and other supported cryptocurrencies while your store keeps a familiar billing flow.

Cryptonly creates the payment invoice server-side, redirects the customer to a secure payment page, and updates WHMCS automatically after a signed payment webhook is received. Your API key stays on the server, payment status is reconciled without manual checks, and crypto payments cannot be charged back like card payments.

You can keep pricing in your normal WHMCS fiat currency. At checkout, Cryptonly converts the invoice amount to the selected crypto asset using current rates, then tracks the payment through the Cryptonly merchant dashboard.

Supported assets, balances and payout settings are managed in your Cryptonly account, so the plugin does not need to be updated every time new currencies or networks are added.

Features

• Hosted crypto checkout for WHMCS invoices
• Fiat invoice pricing with live crypto conversion at checkout
• Partial payment handling with a new checkout for the remaining balance
• Bitcoin, stablecoins and other supported cryptocurrencies from your Cryptonly account
• Due-date aware invoice expiry, up to 30 days
• Sandbox mode for testing before production payments
• 0.5% transaction fee, with no setup or monthly platform fee
• No card chargebacks

How It Works

1. You issue a WHMCS invoice for 100 USD.
2. The customer opens the invoice and selects Pay With Cryptonly.
3. The module creates a Cryptonly invoice and redirects the customer to the hosted payment page.
4. The customer pays in crypto at the current exchange rate.
5. Cryptonly sends a signed webhook to your WHMCS store.
6. The WHMCS invoice is marked Paid automatically.

Any questions? Contact our support team [email protected]

Installation

Full setup guide is available in our documentation: https://cryptonly.net/docs/integration/cms-plugins/whmcs