MAGEN Gate is the entry enforcement point of the MagenTrust runtime. It sits in front of sign-up, onboarding, forms, and API endpoints and evaluates live behavioral signals before a request is accepted. Each request receives a PASS, CHALLENGE, or INTERRUPT decision in under 50 ms. Gate works for human-operated interfaces and for machine-to-machine API calls, where it validates the calling service against policy. Signals are scored ephemerally, no PII is collected, and no biometrics are required or stored. Gate runs inside your perimeter with no data egress and feeds signed decisions to your SIEM.