Castle

Add custom user traits or event properties to Castle events for enhanced context and policy evaluation.

Client-side SDKs for iOS, Android, React Native, and Flutter providing device fingerprinting, request tokens, and event tracking for Castle.

Signals are key inputs to Castle's risk score calculation, exposed in API responses for transparent risk analysis.

Add bot detection and fraud prevention to your app in 8 steps.

Machine learning-based risk scores for fraud and abuse detection.

JavaScript client-side SDK for device fingerprinting, behavioral analysis, and client-side event monitoring.

Castle provides a unified bot detection and fraud prevention platform that analyzes behavior across the user journey to combat credential stuffing, fake signups, and in-app fraud.

Standalone API for IP reputation and infrastructure data, offering real-time lookup, batch queries, and downloadable datasets.

Castle's device fingerprinting combines client and server-side technologies for accurate identification, invisible to attackers and privacy plugins.