Caputchin
Caputchin CAPTCHA for WordPress: privacy-first, surveillance-free bot protection for WordPress forms.
by Caputchin · github.com/caputchin/caputchin-wordpress · website
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3release downloads
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Install
The author publishes release zips, so WP-CLI can install straight from GitHub:
wp plugin install https://github.com/caputchin/caputchin-wordpress/releases/download/caputchin-wordpress-v0.1.0/caputchin.zipFrom the readme
Caputchin for WordPress
Privacy-first, surveillance-free bot verification for WordPress forms. This plugin adds the Caputchin widget to your forms and verifies each submission on your server before it is accepted.
User-facing documentation lives in readme.txt (the WordPress.org plugin readme). This file is for people working on the plugin.
What it does
- Renders the Caputchin widget on a form, which injects a single-use token when the visitor passes.
- On submit, the server posts that token to the Caputchin verification endpoint with the site secret and accepts the form only when verification succeeds. Verification is fail-closed: anything other than an explicit success is rejected.
Coverage
- WordPress core comment, login, registration, and lost-password forms.
- Contact Form 7, WPForms, Fluent Forms.
- Blocks and shortcodes for anywhere else: [caputchin] (checkbox widget) and [caputchin-game] (game).
Layout
Local development
The runtime has no Composer dependency (a small PSR-4 autoloader ships in caputchin.php). Composer is dev-only, for coding standards and tests:
A full local environment that runs the widget end-to-end against a local verification backend is in e2e/
Read the full README on GitHub →
Releases
| Tag | Published | Asset | Downloads |
|---|---|---|---|
| caputchin-wordpress-v0.1.0 | Jun 10, 2026 | caputchin.zip | 3 |