This guide provides a comprehensive overview of Verisoul’s fraud prevention system and how to integrate it into your application.Documentation Index
Fetch the complete documentation index at: https://docs.verisoul.ai/llms.txt
Use this file to discover all available pages before exploring further.

Integration Flow
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
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
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
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
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
