MotionCAPTCHA
A drop-in CAPTCHA widget that shows a 3-second motion challenge — humans pass it instantly while today's leading AI vision models fail, replacing the broken reCAPTCHA/hCaptCHA at the form layer.
Web product and security teams tired of paying for CAPTCHAs that AI agents now solve
- Drop-in JS widget with three difficulty tiers (signup, password reset, high-value action)
- Server-side verification API with abuse signals and challenge replay protection
- Dashboard showing bot attempts blocked, false-positive rate, and per-endpoint friction
- Optional 'ghost font' challenge for sensitive flows (account recovery, payouts)
The Ghost Font article explicitly names CAPTCHA as the next application, and 141-point Hacker News reception shows the tech is real — hCaptCHA and reCAPTCHA are demonstrably losing to AI agents today
Multiple 2024-2025 sources confirm reCAPTCHA, hCaptcha, and Cloudflare Turnstile are being bypassed by AI agents using LLMs and vision models, with CAPTCHA-solving services charging <$1 per 1000 solves — strong demand for a replacement.How Hackers Used AI to Bypass CAPTCHA in 2025 ↗CAPTCHA Is Dead: Why Bots Win and What Replaces Them ↗hCaptcha report: cost of breaking reCAPTCHA ↗
No existing 'motion CAPTCHA' product surfaced in search; however hCaptcha, reCAPTCHA, and Cloudflare Turnstile are heavily funded incumbents actively iterating against the same threat, limiting true open space.hCaptcha - Stop bots and human abuse. ↗CAPTCHA Solutions 2025: Pricing & Performance Comparison ↗
Proven SaaS widget model: hCaptcha Pro starts at $99-139/mo with $1/1000 evaluations above 100k, and reCAPTCHA Enterprise is a paid tier — clear evidence web teams will pay for bot defense, though hCaptcha also offers a free tier raising pricing pressure.hCaptcha Pricing | Pro & Enterprise Plans ↗hCaptcha Pricing 2026 (with Free Cost Calculator) - Prosopo ↗
Inherent arms race: any vision/motion challenge that is 'hard for AI' today will be within LLM-CV reach in 12-24 months, as the same Ghost Font-style gap closes; defense remains needed but the moat erodes fast.hCaptcha Solver: How AI is Changing CAPTCHA Challenges ↗
Building a drop-in widget mirrors Turnstile/hCaptcha's proven stack, but the harder problem — discovering and continually refreshing motion patterns that frontier models fail on — is an ongoing research burden, not a one-time build.Top 8 CAPTCHA Alternatives 2026: Invisible & Privacy-First ↗