SwitchID is a multi-signal identity verification API that helps businesses stop fake signups without forcing ID uploads. With one API call, SwitchID evaluates six verification signals — including phone and email verification, device fingerprinting, and identity consistency checks — to instantly approve, challenge, or deny user registrations. Key features include: real-time risk scoring, configurable verification thresholds, phone and email validation, device fingerprinting, IP intelligence, and identity graph analysis. SwitchID is designed for SaaS platforms, fintech companies, and any business that needs to verify user identities at scale while maintaining a frictionless onboarding experience.