Example Plugin

This example plugin demonstrates how to integrate Keygen's licensing API into a WordPress plugin for site-locked (node-locked) licensing. It is intended for developers building commercial plugins who need to restrict each license key to a single domain.

• Domain-locked validation: Each license key is validated against the site's domain, ensuring the plugin only works on authorized URLs.
• Localhost testing: Includes a test license key (wp-localhost-key) that works on localhost, making it easy to verify the integration during development.
• License policy configuration: Provides guidance on setting up a Keygen policy with attributes like maxMachines: 1 and strict: true to enforce single-domain usage.
• Settings page integration: Adds a settings menu in the WordPress admin where users can enter and validate their license key.
• Extensible foundation: The code is structured as a starting point—you can add error handling, machine activation, or client-side validation as needed for production use.