My SMS Check

Last April, I saw a bunch of money coming into my Stripe. I thought I had finally made it with my SaaS. What initially seemed like a surge in sales turned out to be a devastating card testing attack, with thousands of blocked and fraudulent transactions threatening to shut my business down. Traditional defenses like rate limiting and CAPTCHA just weren’t cutting it, and I realized I needed a smarter solution.

That’s when I created My SMS Check—a centralized, 1-time SMS verification service that ensures every signup uses a real phone number. This simple yet powerful trick stopped the attacks entirely, allowing me to protect my SaaS projects effortlessly. Now, other developers can integrate robust fraud prevention in minutes, safeguarding their businesses from unlimited financial losses with minimal friction for genuine customers. My SMS Check makes securing your platform easy and reliable, so you can focus on what you do best.

No subscriptions required. 20 free verifications.