Overview
Castle is a suite of APIs for bot detection and abuse prevention.
Castle stops bots and fraud through behavioral analysis - no puzzles for your users to solve.
Choose your path
Protect logins
Detect account takeovers and credential stuffing
Stop fake signups
Block bot registrations and human multi-accounting
Secure transactions
Block or review high-value transactions in real time
Full integration - Want end-to-end setup? Start with the Integration guide.