API
Introduction
The WHMCS API allows you to perform operations and actions within WHMCS from external third party and custom code.
- Getting Started
Learn about how to get started with the API - Authentication
Learn how authentication works for the WHMCS API - Access Control
Learn how IP and Access Key control works for the WHMCS API - Response Types
Learn about the different response types - Sample Code
See sample code for remotely connecting to the WHMCS API - Internal API
See sample code for using the Local WHMCS API - API Index
A complete listing of all available API commands - API Reference
Visit the API Reference Manual