Stytch

Complete identity platform that handles authentication, authorization, and security for both human users and AI agents. Built for modern applications that need to scale from first user to Fortune 100 customers.

Key features include:

• Pre-built frontend components and headless SDKs for flexible integration
• Multi-tenant architecture with native support for organizations and user management
• Enterprise-ready features like SSO (SAML/OIDC), MFA, RBAC, SCIM, and JIT provisioning
• AI agent authentication and authorization with advanced MCP toolkit
• Real-time fraud protection with industry-leading bot detection
• Embeddable admin portal for customer self-service

Perfect for developers who want full control over their login experience without building auth infrastructure from scratch. The platform offers fine-grained API access, allowing you to customize functionality for every customer and organization while maintaining security best practices.

Advanced security features include device-level traffic shaping, invisible CAPTCHA, intelligent rate limiting, and protection against account takeover and credential stuffing attacks. Built-in enforcement tools ensure legitimate users have seamless experiences while blocking malicious actors.