
OnSefy: AI Fraud Detection and User Verification
OnSefy helps businesses prevent fake account creation during onboarding. It is designed for startups and growing platforms that need to maintain user data quality.
At a glance
- Category
- Browse Security tools
- Best for
- Startups, Growing SaaS businesses, Small project developers, High-traffic digital platforms
- Pricing
- Pricing includes a free tier for up to 1K verifications per month. Paid plans include Growth at $21.90/month (up to 10K verifications) and Enterprise at $48.90/month (up to 100K verifications).
- Key use cases
- Securing User Onboarding, Identity Verification, Automated Fraud Monitoring
- Integrations
- Zapier, RESTful API
- Official website
- Visit onsefy official website

OnSefy is a cybersecurity tool designed to identify fraudulent users at the point of signup. By analyzing network activity and user behavior, the platform provides risk scores and helps block suspicious signups before they enter a business's database or CRM.
The tool is designed for a range of users, from small projects and startups to larger high-traffic platforms. It operates via a RESTful API and can be integrated into custom code or connected to no-code tools like Zapier.
Buyers can use the platform to verify emails and IP addresses, set custom blacklist filter rules, and monitor fraud trends through a dashboard. The service emphasizes fast response times and data privacy, stating that user data is not used for model training.
Before choosing this tool, buyers should confirm their monthly verification volume, as the feature sets and request limits vary across the Free, Growth, and Enterprise plans.
Key Features
Real-time Risk Scoring
Evaluates signup patterns and network activity to assign a risk score to users.
Email and IP Verification
Checks the validity of email addresses and IP sources during the onboarding process.
Behavioral Analysis
Uses machine learning to identify anomalies and patterns in user behavior.
Custom Rule-Based Filters
Supports defining specific fraud criteria and blacklist rules.
Fraud Dashboard
Provides visual report charts to monitor fraud trends and activity.
Data Export
Supports exporting fraud logs and analytics for external reporting.
Use Cases
Securing User Onboarding
Blocking fake account creation during the initial signup flow to protect database integrity.
Identity Verification
Using API calls to verify email and IP addresses before granting account access.
Automated Fraud Monitoring
Monitoring signup traffic via a dashboard to identify spikes in fraudulent attempts.
Best For
- Startups
- Growing SaaS businesses
- Small project developers
- High-traffic digital platforms
Integrations
- Zapier
- RESTful API
Pricing
Pricing includes a free tier for up to 1K verifications per month. Paid plans include Growth at $21.90/month (up to 10K verifications) and Enterprise at $48.90/month (up to 100K verifications).
FAQ
Is there a free version of OnSefy?
- Yes, there is a Free plan that supports up to 1,000 verifications per month, intended for small projects and testing.
How does OnSefy identify fraudulent users?
- It uses AI algorithms to analyze network activity, user behavior, and signup patterns to filter out suspicious users in real time.
Does OnSefy use my business data to train its AI?
- No, the company states that its prediction models are trained without using personal or user-specific data.
What happens if I go over my plan's verification limit?
- If you exceed the API call limit for your plan, your service may be temporarily restricted until you upgrade to a higher plan.
Source category: Security
Source subcategory: Cybersecurity
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Categories
Software Type
How AI is used
OnSefy is an AI-powered fraud detection tool that helps block fake signups in real time via a RESTful API. It is designed for developers and business owners who want to secure their onboarding process through risk scoring and IP verification. API limits vary by plan and may lead to temporary service restrictions if exceeded.
Pros & Cons
Pros
- Fast API response times
- Includes a free tier for small projects
- Developer-friendly RESTful API without required SDKs
- User data is not used for AI model training
Cons
- Request history retention is limited based on the chosen plan (3 to 12 months)
- Service may be temporarily restricted if monthly API call limits are exceeded
- Free plan provides fewer custom blacklist rules than paid tiers