OnSefy
AI-powered fraud detection that blocks fake signups before they reach your database
OnSefy is a real-time fraud detection and verification service that scores signup attempts and blocks fake users before they enter a platform's database, CRM, or analytics. It analyzes signals such as network activity, user behavior, and signup patterns to identify suspicious registrations and return a risk score, helping teams reduce manual review of fraudulent signups.
The service provides an API for integration into existing signup flows, along with no-code support through platforms like Zapier. Core capabilities include real-time fraud detection, AI-powered risk scoring, a custom rules engine for defining fraud triggers, a dashboard with fraud trend charts and reports, data export, and a global intelligence feed for threat recognition. It is packaged as a free plan for small projects and testing, paid Growth and Enterprise editions with increasing verification limits and support levels, and custom plans for higher-volume needs.
12 alternatives to OnSefy
Ranked by how well each tool replaces OnSefy: shared features, audience, price and popularity.
- 62 out of 100 matchUsage-based
Identity verification and KYC built for global compliance
Covers 6 of 15 key features.
Free plan62 out of 100 matchUsage-basedAuthentication and authorization platform for users, AI agents, and machine identities
Covers 0 of 15 key features.
Free plan60 out of 100 match$35/moUserCheck: Email validation API that identifies and blocks fake and disposable email addr
Covers 9 of 15 key features.
Free plan59 out of 100 match$50/mo- 58 out of 100 matchFree
- 57 out of 100 matchUsage-based
AI-powered identity verification for onboarding, fraud prevention, and compliance
Covers 0 of 15 key features.
57 out of 100 match—Social login, single sign-on, and customer identity management
Covers 1 of 15 key features and starts cheaper.
Free plan57 out of 100 match$8/moThe authentication framework for TypeScript
Covers 5 of 15 key features and is open source.
Free planOpen source57 out of 100 match$20/moSpam protection for websites using machine learning filters on user-submitted text
Covers 8 of 15 key features.
Free plan55 out of 100 matchContact salesImplement modern authentication on your terms with Hanko
Covers 3 of 15 key features and is open source.
Free planOpen source55 out of 100 match$29/mo- 55 out of 100 match$49/mo