ALTCHA

ALTCHA is a privacy-first solution built to help developers and website owners stop bots, spam, and automated abuse — without making things harder for real users. It replaces traditional CAPTCHA systems with a smarter, quieter approach to verification and threat detection.

At the core of this system is ALTCHA Sentinel, an intelligent security layer that protects forms, APIs, and web services from malicious traffic. Sentinel doesn’t interrupt the user journey with puzzles or challenges. Instead, it uses machine learning, threat intelligence, and behavioral analysis to detect abuse in real time and block suspicious requests automatically.

Designed to run silently in the background, ALTCHA Sentinel adapts to your traffic and learns from emerging threats. Whether you're safeguarding a signup page or securing a high-traffic API, it ensures strong, automated protection — while keeping your website fast, accessible, and user-friendly.