Custom Payment Gateway Integration for WHMCS

Expand your payment options and reach more customers with our custom payment gateway integration service. We develop secure, PCI-compliant modules that seamlessly integrate any payment processor with your WHMCS installation.

Payment Gateway Types We Integrate

Traditional Payment Processors

Regional banks and processors
Local payment networks
ACH and wire transfer systems
Check processing gateways
Merchant account integrations

Digital Wallets

Regional e-wallets
Mobile payment systems
Prepaid card processors
QR code payment systems
P2P payment platforms

Cryptocurrency Gateways

Bitcoin payment processors
Multi-currency crypto gateways
Stablecoin processors
DeFi payment solutions
Custom blockchain integrations

Alternative Payment Methods

Buy now, pay later services
Carrier billing systems
Gift card processors
Loyalty point systems
Subscription billing platforms

Integration Features

Core Functionality

Payment Processing: Secure transaction handling with real-time processing
Refund Management: Full and partial refund capabilities
Recurring Billing: Automated subscription and recurring payment support
Multi-Currency: Handle multiple currencies with automatic conversion
Transaction Logging: Comprehensive logging for audit trails
Error Handling: Graceful error management with customer notifications

Advanced Features

Tokenization: Secure card storage for repeat customers
3D Secure: Integration with 3DS 2.0 for enhanced security
Fraud Prevention: Built-in fraud detection and prevention
Webhook Support: Real-time payment status updates
Batch Processing: Handle bulk transactions efficiently
Split Payments: Commission and fee splitting capabilities
Payment Plans: Installment and flexible payment options
Mobile Optimization: Responsive payment forms for all devices

Security & Compliance

PCI DSS Compliance

Secure data transmission with TLS 1.2+
No sensitive data storage in WHMCS
Tokenization for card details
Regular security audits
Compliance documentation

Security Measures

Input validation and sanitization
SQL injection prevention
XSS protection
CSRF token implementation
Rate limiting for API calls
IP whitelisting options

Integration Process

API Analysis: Review payment gateway API documentation and requirements
Module Development: Create custom WHMCS module following best practices
Security Implementation: Implement all necessary security measures
Testing Environment: Comprehensive testing with sandbox/test accounts
User Interface: Design intuitive payment forms and admin interfaces
Documentation: Create detailed setup and usage documentation
Deployment: Install and configure on production server
Training: Staff training on gateway management

Gateway-Specific Features

For Regional Gateways

Local language support
Regional compliance adherence
Local tax calculation
Currency restrictions
Cultural payment preferences

For Crypto Gateways

Real-time exchange rates
Wallet address validation
Blockchain confirmation tracking
Automatic conversion options
Network fee handling

Module Components

Gateway Module: Core payment processing functionality
Callback Handler: Process gateway notifications and webhooks
Admin Interface: Configuration and transaction management
Client Forms: Secure, user-friendly payment forms
API Library: Reusable gateway API communication
Logging System: Comprehensive transaction and error logs
Test Suite: Automated testing for reliability

Popular Gateway Integrations

We've successfully integrated numerous payment gateways including:

Razorpay, PayU, CCAvenue (India)
MercadoPago, PagSeguro (Latin America)
M-Pesa, Flutterwave (Africa)
Alipay, WeChat Pay (China)
Perfect Money, WebMoney (International)
Custom bank APIs and proprietary systems

Need a Custom Payment Gateway?

Let us integrate any payment processor with your WHMCS installation.

Get Integration Quote

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Payment Gateway Integration