Payment4 is a cutting-edge cryptocurrency payment gateway designed to empower businesses globally with fast, secure, and borderless payment solutions. As the digital payment ecosystem continues to evolve, Payment4 provides businesses with the opportunity to stay ahead of the curve by seamlessly integrating cryptocurrency payments into their operations.
The Payment4 WHMCS Payment Gateway Plugin allows you to accept cryptocurrency payments directly within your WHMCS store. With this plugin, you can easily offer your customers the option to pay with Bitcoin (BTC), Tether (USDT), and other popular cryptocurrencies. Payment4 is a fast and secure crypto payment gateway that seamlessly integrates with WHMCS, enabling instant blockchain payments, low transaction fees, and direct settlements to your wallet. Empower your business with a borderless payment solution that is professional, developer-friendly, and easy to implement in your WHMCS checkout process.
High Security
Easy Implementation
Fast and Cost-Effective Settlements
Secure Payments (Escrow)
24/7 Support
No KYC Required
Merchant Dashboard with Diverse Features
Custom Payment Page
Cryptocurrency Payment Link
Get the Payment Gateway and Management Panel for Free
A 1% transaction fee applies, capped at $10
Customer Chooses Crypto – At checkout, the customer selects the Payment4 cryptocurrency payment option (e.g. choosing to pay with Bitcoin or USDT for their order).
Invoice Generation – WHMCS (via the Payment4 plugin) generates a crypto payment invoice. A unique wallet address (and QR code) is displayed to the customer for the selected coin.
Customer Sends Payment – The customer sends the required amount of cryptocurrency to the provided address. Payment4’s system monitors the blockchain in real time for the incoming payment.
Instant Verification – Once the transaction is detected, Payment4 immediately verifies it. The order is updated in WHMCS automatically – typically marking the invoice as paid (or pending until sufficient confirmations are received, depending on the coin).
Order Completion – As soon as the payment is confirmed, the WHMCS order is processed just like any other successful payment. The funds are transferred directly to your configured crypto wallet. You receive the crypto instantly with no holding delays, since Payment4 does not custody your funds.
This seamless process ensures a smooth experience: customers pay in crypto with minimal extra steps, and you get paid quickly and securely.
Getting started with the Payment4 WHMCS plugin is simple. Follow these steps to install and configure the module:
Sign Up on Payment4: If you haven’t already, create a merchant account on the Payment4 platform and obtain your API Key and Secret. These credentials will be used to connect your WHMCS to the Payment4 gateway.
Download the Plugin: Download the latest Payment4 WHMCS Gateway plugin files. (If you obtained the plugin from the WHMCS Marketplace or Payment4 website, you should have a ZIP file for the module.)
Upload to WHMCS: Extract the ZIP file. Upload the contents of the modules directory from the plugin package into your WHMCS installation directory, merging with the existing modules folder. This will typically place the Payment4 gateway files under modules/gateways/.
Activate the Gateway: Log in to your WHMCS Admin panel and navigate to Setup > Payments > Payment Gateways. Under the list of available gateways, find Payment4 and click Activate. This will add the Payment4 gateway to your WHMCS payment methods.
Configure API Credentials: Still in the WHMCS Admin under Payment Gateways, locate the Payment4 gateway (usually under “Manage Existing Gateways” once activated). Enter your Payment4 API Key and Secret Key in the provided fields. You can also configure any additional settings (e.g. selecting which cryptocurrencies to accept, confirmation requirements, etc., if applicable).
Save Settings: Click Save Changes to apply the configuration. The Payment4 gateway is now active on your WHMCS.
Test the Integration (Optional): It’s a good practice to simulate a payment to ensure everything is working. You can create a test invoice in WHMCS, choose Payment4 as the payment method, and follow the checkout to verify that the Payment4 payment page appears and that transactions are reflected (you might use a small test crypto payment or a testnet if supported).
Once installed and configured, your WHMCS store is ready to accept Bitcoin, USDT, and other crypto payments via Payment4. The gateway will be listed as a payment option for your clients at checkout.
Need help or have questions about the Payment4 WHMCS plugin? We’re here to assist:
Documentation: Refer to the official Payment4 documentation for detailed guides on setup, configuration options, and troubleshooting. The documentation covers everything from generating API keys to testing transactions.
Payment4 Support Team: If you encounter any issues or have specific questions, you can contact the Payment4 support team through our website’s Contact Us page or via our support email. We offer 24/7 assistance to ensure your crypto payment integration runs smoothly.
Developer Community: Payment4 is built by developers for developers. You can reach out on our community channels or check our GitHub repository for the WHMCS plugin. If you find a bug or have a feature request, feel free to open an issue on GitHub. We welcome feedback and contributions from the community.
By choosing Payment4, you’re backed by a reliable crypto payment partner. We are committed to providing a secure, innovative, and smooth payment experience for you and your customers. Get started with the Payment4 WHMCS plugin and join the future of payments today!
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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.
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Easily accept Bitcoin, Tether, Ethereum and many other crypto payments on your WHMCS website
No Fees, Easy Setup. Accept cryptocurrencies like: Bitcoin, Bitcoin Cash, Ethereum and Litecoin!
With this WHMCS module, you'll get the payment gateway fees from your clients directly.
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