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WHMCS REST API Module

Let clients sell your products via API

Allow your clients and resellers to sell your products using a professional REST API. Perfect for automation, third-party integrations, and building custom storefronts. 100% tested and production-ready.

Starting at

$499

One-time license

Key Features

Full REST API for all WHMCS operations
Secure API key authentication
Rate limiting and quota management
Complete order and provisioning API
Client management endpoints
Invoice and payment API
Product catalog API
Webhook notifications
Detailed API documentation
SDK and code samples

Benefits

Let resellers build custom storefronts

Automate bulk operations

Integrate with any third-party system

Scale your business with API partners

Technical Specifications

Supported Versions

WHMCS 7.0 through 8.x

Installation

Upload module, configure API keys, set permissions

Requirements

  • PHP 7.4+
  • MySQL 5.7+
  • WHMCS 7.0+

Admin Interface

API management dashboard, usage analytics, key management

Frequently Asked Questions

What's the difference between Regular and Open Source?

Regular license ($499) includes the encrypted module with full features. Open Source license ($1499) includes full unencrypted source code, allowing you to modify and customize the module.

Can my clients use the API to create orders?

Yes! The API supports full order creation, client registration, and service provisioning - perfect for resellers building their own storefronts.

Is there rate limiting?

Yes, configurable rate limits per API key to prevent abuse. You control how many requests each client can make.

Ready to Get Started?

Join thousands of hosting companies using WHMCS REST API Module to streamline their operations.