Fake Onboards Cost You
Stop Before They Start
OnSefy offers an advanced fraud detection service to safeguard your platform and block fake signups.
Our API integrates seamlessly with your existing systems, enabling real-time onboarding fraud detection. Learn more in our developer documentation.
Advanced Fraud Prevention
Smart security for real-time threat protection.
Seamless User Verification
Approve genuine users effortlessly.
Robust Protection
Shield your platform from fake users.
Confident & Reliable
Detect fraud instantly and reduce risk.
Smart Security, Genuine Signups
OnSefy is built to ensure only real users access your platform. With intelligent fraud detection, seamless verification, and real-time protection, we help businesses stay secure and trustworthy—effortlessly.
- Instantly identify and block suspicious signups.
- Advanced algorithms ensure accuracy.
- Easy to implement with any platform.
- Protects startups to enterprises alike.
- Detects patterns to prevent abuse.
- No delays, just secure approvals.
9+ Years
Of experience in business service
Works Smoothly with Any Codebase
Effortlessly integrate OnSefy into your system with support for multiple programming languages, ensuring instant and reliable fraud protection.
JoinHow Does It Work
You're only a few simple steps away.
1 Create Your Free Account
Sign up for OnSefy to access your risk assesment dashboard and get your unique API key — no credit card required.
2Plug & Protect in Minutes
Add just a few lines of code to your app or site. No deep tech knowledge needed — setup is fast and beginner-friendly.
3Prevent Fake Signups
OnSefy checks each user before they sign up and gives you a risk score, so you can approve, block, or review with confidence.
Success Stories
Our customers love what we do! Here's what some of them have to say about their experiences with us.
Carlos Rodríguez
CTO, SecurePay
OnSefy transformed our signup process, eliminating fraudulent accounts effortlessly. Seamless API integration made it a perfect fit for our platform.
Sofia Morales
Product Manager, FinTrust
We saw an immediate drop in fake signups after implementing OnSefy. The real-time fraud detection is a game-changer for security.
Features
Ensuring security and trust with seamless, intelligent protection. Our prediction models are trained without using any personal user data.
Trusted Protection, Seamless Security
We empower businesses with cutting-edge fraud detection and user verification solutions, ensuring only genuine signups make it through.
- Instant Fraud Detection – Identify risks in real-time.
- Seamless User Experience – Security without friction.
- AI-Powered Insights – Smarter, faster, and more accurate fraud prevention.
Advanced Verification
Authenticate with Confidence. Enhance security with multi-layered verification techniques that prevent fraudulent activities before they occur.
- Email & Phone Verification – Detect disposable and risky contacts.
- Device & Browser Fingerprinting – Identify unique user patterns.
- IP Reputation Analysis – Block signups from suspicious locations.
Seamless Integration
Powerful API for Instant Protection. Integrate fraud prevention effortlessly into your platform with our flexible and developer-friendly API.
- Easy API Integration – Quick setup with detailed documentation.
- Customizable Rules – Tailor fraud detection to your business needs.
- Real-Time Alerts & Analytics – Stay ahead with instant risk notifications.
We Make Verification Effortless
Say goodbye to slow, error-prone processes. Our intelligent system delivers lightning-fast verification with cutting-edge fraud detection.
Speed
Traditional: Slow (Seconds)
Our: Instant (Milliseconds)
Accuracy
Traditional: Prone to Errors
Our: AI-Powered Precision
Fraud Detection
Traditional: Basic Checks
Our: Advanced AI & ML
Integration
Traditional: Complex Setup
Our: Plug & Play API
Pricing
Find the perfect balance of security and scalability with OnSefy’s flexible pricing plans.
Starter
Best for small projects & testing environments.
Features Included:
- Up to 1K Verification/month
- Standard Fraud Detection
- User Risk Score
- 1 Custom Blacklist Filter Rules
- Analytics Dashboard & Reports
- 10 Verification/Minute
- 3-Months Request History
- Basic support
Growth
Best for growing businesses & startups.
Features Included:
- Up to 10K Verification/month
- Advanced Fraud Detection
- User Risk Score with Patterns
- 5 Custom Blacklist Filter Rules
- Analytics Dashboard & Reports
- 30 Verification/Minute
- 6-Months Request History
- Priority Support
Enterprise
Best for large-scale & high-traffic platforms.
Features Included:
- Up to 100K Verification/month
- Advanced Fraud Detection
- User Risk Score with Patterns
- 10 Custom Blacklist Filter Rules
- Analytics Dashboard & Reports
- 30 Verification/Minute
- 1-Year Request History
- Priority Support
Need
100K+
Verification/Month?Looking for a custom plan?
Let’s build a solution around your goals — with custom plans built for scale, compliance, and fraud defense. We partner with leading digital companies to offer customized solutions.
Have a question? Check out the FAQ
Find answers to common questions about OnSefy’s fraud detection system.
How does OnSefy detect fraudulent signups?
OnSefy leverages advanced data analysis techniques to evaluate various factors such as network activity, user behavior, and signup patterns. By assessing these indicators, it effectively detects and filters out potentially fraudulent signups in real time.
Does your prediction model use my personal or business data for training?
No. Our prediction models are trained without using any personal or user-specific data. We only store limited validation data to provide essential features — such as showing your onboard records, activity history, or service usage. This data is never used for model training or third-party analytics.
📌 You can request deletion of your data at any time, and we’ll permanently remove it from our systems in line with our privacy policy.
Is there a free plan available?
Yes! Our Starter Plan offers up to 1,000 API calls per month for free, perfect for small projects and testing.
How accurate is OnSefy’s fraud detection?
OnSefy uses AI-powered algorithms with a 99.9% accuracy rate in detecting fraudulent signups, ensuring genuine users can access your platform.
Can I integrate OnSefy with my existing system?
Absolutely! OnSefy provides a developer-friendly API that seamlessly integrates with your existing signup flow in just a few steps.
What happens if I exceed my API call limit?
If you exceed your plan's limit, your service may be temporarily restricted. To continue, please upgrade to a higher plan. Note that we do not upgrade plans automatically.
Do you provide customer support?
Yes! We offer customer support tailored to your plan: Free users: Basic email support, Paid plan users: Priority email support, Custom plan customers: Dedicated support representative. We also offer fully dedicated verification servers on demand for enterprise needs.
Need Assistance? We're Here to Help!
Get expert support through our dedicated helpdesk. Whether you have questions, need technical assistance, or want to optimize fraud detection, our team is ready to assist you.
Sign Up Now & Protect Your Platform!