Real-time device intelligence for modern merchants

Stop risky sessions before they become chargebacks.

Leonix combines device device intelligencee, request-level intelligence, and server-side fraud scoring to help merchants detect suspicious traffic in milliseconds.

Single script install Real-time risk scoring Built for API-first teams
Risk score
78
Review
Suspicious device + network mismatch detected
Decision generated in 184 ms
Visitor IDStable
Proxy / VPNDetected
Request IDVerified
ActionStep-up
Why Leonix

Built like a startup product, not a clunky fraud rules engine.

Fast integration, clean architecture, and decision-ready telemetry for checkout, account creation, login, and high-risk account events.

Real-time scoring

Evaluate session risk in milliseconds using request-linked device intelligence and backend decisioning.

🛡️

Higher signal quality

Use device intelligence, visitor consistency, request telemetry, and server-side validation to reduce blind spots.

🔌

Simple integration

Start with one script tag, then expand into APIs, workflows, and tenant-specific policies as you scale.

How it works

From browser signal to fraud decision.

Leonix keeps the frontend lightweight while pushing decisioning and validation into your backend stack.

1

Install one script

Merchants add a single Leonix widget to their site with a tenant key.

<script src="https://cdn.leonix.io/fraudwidgetV1.js"
  data-tenant-key="YOUR_TENANT_KEY"></script>
2

Collect trusted signals

The widget loads device intelligencelligence, retrieves visitor and request identifiers, and sends them to Leonix.

3

Return a decision

Your fraud API evaluates risk, applies rules, and returns allow, review, or block in real time.

Architecture

Clean domain separation for a modern SaaS stack.

Keep marketing, dashboard, CDN, and decision APIs isolated so the platform stays flexible as you grow.

Merchant websiteEmbeds Leonix widget
cdn.leonix.ioWidget + proxied device intelligence agent
api.leonix.ioRisk engine and decision API
Fraud decisionAllow, review, or block
1 scriptto get started
ms latencyready for real-time flows
API-firstbuilt to scale with merchants
Launch faster

Turn Leonix into a real startup homepage today.

Use this page as your marketing front door, then connect signup, docs, and the dashboard as each part goes live.

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