This guide provides a comprehensive overview of Verisoul’s fraud prevention system and how to integrate it into your application.

​
Integration Flow

1

Initialize SDK

Add the Verisoul SDK to your application and initialize it early in your app’s lifecycle.

Supported platforms: Web, iOS, Android, React Native, Flutter, WebView

2

Collect Signals

After initialization, the Verisoul SDK automatically begins collecting signals in the background with minimal impact on performance:

Network Signals

Fingerprint network interfaces, IP addresses, and geolocation

Device Signals

Fingerprint device properties, hardware, and software

Behavioral Signals

Continuously monitor mouse moves, touches, and keystrokes

3

Get Session ID

Get a unique and short-lived session token for the current user session

  • Required for all API calls to our backend
  • Resistant to replay attacks

Retrieve the session ID at critical points in your user journey such as sign up, login, withdrawal requests, or high-value transactions.

4

Get Decision and Signals

Make a secure call to our API from your backend server with the session_id and optionally user identifiers

Decision

  • Final decision categorized as:

    • Fake: High probability of fraud
    • Suspicious: Elevated risk indicators
    • Real: Legitimate user

Signals

  • Proxies, VPNs, Tor, Datacenters
  • Impossible Travel
  • Emulators and Fake Devices
  • Automated Bots
  • Linked Accounts
5

Take Action

Based on the Verisoul response, segment users based on your use case:

Fake Users

Block access or implement step-up verification for users with high probability of fraud

Suspicious Users

Monitor activity closely and consider additional verification for high-value actions

Real Users

Allow seamless access without unnecessary friction

​
Ready to Begin?

Frontend Integration

Detailed guide for implementing the client-side SDK in web and mobile applications

Backend Integration

Step-by-step instructions for server-side authentication and risk assessment

Example Apps

Complete reference implementation demonstrating best practices