Userfront is an authentication and identity management platform designed for developers building web applications. The platform provides tools for managing user authentication, authorization, and access control, including support for common protocols and standards such as JWT (JSON Web Tokens) and SAML (Security Assertion Markup Language). Core capabilities include: - User authentication with support for multiple strategies (password-based, multi-factor authentication) - JWT access token issuance and management using RS256 signing (RSA with SHA-256 hashing) - SAML identity provider (IdP) functionality, enabling single sign-on (SSO) integration with third-party service providers - Role-based access control and authorization management - Session management and token lifecycle handling - AI guardrails for managing AI assistant usage policies within organizations Userfront targets software development teams and organizations that need to embed authentication and user management into their applications without building these systems from scratch. The platform emphasizes a "secure by default" philosophy, favoring pre-configured secure options and compliance with security standards. The company was founded through StartX, a nonprofit startup accelerator associated with Stanford University, and has received investment from Stanford University, Heavybit, and WestWave Capital. It offers a developer-focused SDK, REST API, JavaScript client library, and documentation resources for integration.