Nametag is a comprehensive identity verification and authentication platform that provides secure user identification, data sharing, and account protection. It utilizes mobile cryptography, device telemetry, proprietary AI, and other advanced technologies to verify user identities and prevent security threats such as account takeovers, social engineering, injection attacks, and AI deepfakes. Nametag supports document-based verification of over 11,000 types of government-issued identity documents, facial biometrics with liveness detection, and AI-powered deepfake prevention. The platform offers customizable identity verification flows that can be integrated into various systems for self-service account recovery, helpdesk verification, and secure step-up authentication. Nametag implements OAuth 2.0 protocols for authorization flows, supports API key authentication, and provides webhooks for real-time event notifications. It allows organizations to create and manage multiple environments, each serving as a separate privacy domain, and supports integration with external directories such as Azure AD and Okta. The platform also offers Single Sign-On (SSO) integration using SAML 2.0 with identity providers like Microsoft Entra ID and Okta, along with role-based access control and group-based permissions for enterprise applications.