A text-based CAPTCHA extension for CKAN user registration form that integrates with the textcaptcha.com API service. Instead of traditional image-based CAPTCHAs, this extension presents users with simple text-based questions (e.g., ‘What color is the sky?’) to verify human interaction. The extension was tested with CKAN 2.3 and 2.4 and provides a more accessible alternative to visual CAPTCHAs. Requires registration with textcaptcha.com to obtain an API endpoint URL. The extension is lightweight with ckanapi as its only dependency and can be easily integrated into existing CKAN installations to add basic bot protection to the registration process.