What OnSefy is
Protecting platforms before damage begins.
Fake signups might seem harmless at first — but they drain resources, pollute your data, and open the door to abuse. OnSefy acts at the very first point of contact: signup. By analyzing signals in real time, we help you detect and stop suspicious users before they ever get inside your product. It's not just fraud prevention — it's growth protection.
our value
Our business is steered by
our core values
Security-First
OnSefy exists to protect. Every decision we make — from API design to infrastructure — is rooted in keeping your platform safe from fake users and fraud attempts.
Transparency
We’re honest about what we detect, how we score risk, and where our limits are. No black box decisions, no hidden flags. Just clean, usable risk data.
Builder-Focused Mission
We’re developers too — and we’re building for people like us. Fast docs, simple integration, and no enterprise friction. You ship fast, and so do we.
Create a trusted onboarding experience
Get started in minutes!
Effortlessly integrate OnSefy into any tech stack — from custom code to no-code platforms like Zapier — and unlock real-time, reliable fraud protection at every touchpoint.
Get Started Today-
No credit card required
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Plug-and-play integration
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Your data stays private — always