GateCHA CAPTCHA

GateCHA for WordPress is the official WordPress plugin for GateCHA. It protects forms with ALTCHA proof-of-work CAPTCHA and routes challenges and verification through the site owner’s own GateCHA server. The plugin is described as privacy-first and self-hosted, with no cookies, fingerprinting, user tracking, or third-party services.

Its listed features include server-side verification, built-in replay protection, central stats on a GateCHA dashboard, and a bundled ALTCHA Web Component that does not depend on an external CDN. It can be configured from a single settings page, where each protected form can be enabled or disabled individually. The plugin also offers a fail-open or fail-closed choice if the GateCHA server becomes unreachable. For custom forms, it provides a [gatecha] shortcode and requires server-side verification of the altcha field.

GateCHA for WordPress supports 14 form types, including WordPress core login, registration, password reset, and comments forms; WooCommerce login, registration, and password reset forms; and forms from Contact Form 7, WPForms, Gravity Forms, Elementor Pro, Forminator, Formidable Forms, and HTML Forms. The page says the plugin mirrors the hooks and filters of the official ALTCHA plugin, so migration is straightforward. It is intended for WordPress site owners who want CAPTCHA protection while keeping communication limited to their own GateCHA instance.

The plugin is available from WordPress.org and manual installs are also offered through GitHub. The stated requirements are WordPress 6.0 or later, PHP 7.4 or later, and a running GateCHA instance with an API key. The license is GPL-2.0-or-later. The page also says GateCHA can be installed in a single Docker container with zero external dependencies.