Payment4 Crypto Payment gateway

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 enables businesses to stay ahead of the curve by seamlessly integrating cryptocurrency payments into their operations.

Supported integrations:
– WooCommerce
– Restrict Content Pro (RCP)
– Easy Digital Downloads (EDD)
– Gravity Forms

Features

• High Security
• Easy Implementation
• Fast and Cost-Effective Settlements
• Secure Payments (Escrow)
• 24/7 Support
• Merchant Dashboard with Diverse Features
• Custom Payment Page
• Cryptocurrency Payment Link

Payment Gateway Fees

• Get the Payment Gateway and Management Panel for Free
• A 1% transaction fee, capped at $10

Examples:
– $50 payment → $0.50 fee
– $1,300 payment → $10 fee (capped)

Languages Supported

• Arabic
• English
• Persian
• French
• Spanish
• Turkish

How It Works

1. Customer Selects Crypto – During checkout, the customer chooses Payment4 (e.g., Bitcoin, USDT, or other supported coins).
2. Invoice Creation – A crypto payment invoice is generated with a unique wallet address and QR code.
3. Customer Sends Crypto – The customer transfers the exact amount to the provided wallet address.
4. Real-Time Verification – Payment4 monitors the blockchain and instantly verifies the transaction.
5. Order Finalization – Once confirmed, the order is processed and funds are sent directly to your configured wallet—Payment4 never holds your funds.

With Payment4, you can accept cryptocurrency payments across your WooCommerce store, RCP membership site, EDD digital products, and Gravity Forms checkout forms—all seamlessly integrated.

External Services

This plugin relies on the Payment4 API, a third-party external service, to process cryptocurrency payments. The plugin will not function without connecting to this service.

What is the Payment4 API?

Payment4 (https://payment4.com) is a cryptocurrency payment gateway service that processes crypto transactions, monitors blockchain confirmations, and manages payment verification.

When does the plugin connect to Payment4 services?

The plugin connects to Payment4 external services in the following situations:

1. During Checkout – When a customer selects Payment4 as their payment method and proceeds to pay
2. Payment Verification – When verifying that a cryptocurrency payment has been received and confirmed on the blockchain
3. Payment Callbacks – When Payment4 sends webhook notifications about payment status updates
4. Language Files – When loading translation files for the plugin interface

What data is transmitted?

When processing payments, the following data is sent to Payment4 services:

• Order amount and currency
• Order ID and description
• Customer email address (optional, for payment notifications)
• Return and callback URLs for your website
• API credentials (API key) for authentication

No sensitive financial information (credit card details, bank accounts, etc.) is transmitted. Cryptocurrency transactions are handled directly on the blockchain.

Service Endpoints Used

• Payment API: https://service.payment4.com/api/v1/payment
• Verification API: https://service.payment4.com/api/v1/payment/verify
• Currency Data: https://storage.payment4.com/wp/currencies.json
• Language Files: https://storage.payment4.com/wp/languages.json

Legal & Privacy

• Terms of Service: https://payment4.com/terms-of-service
• Privacy Policy: https://payment4.com/privacy-policy

By using this plugin, you acknowledge that data will be transmitted to Payment4’s servers for payment processing. Please review Payment4’s terms of service and privacy policy to understand how your data is handled.

License

This plugin is licensed under the GPLv2 (or later) License. You can view the full text of the GPLv2 license at: https://www.gnu.org/licenses/old-licenses/gpl-2.0.html

Support

For support, visit our Support Page.