Stytch ranks #6 in Agent Authentication & Identity for AI AI search.

Stytch is a developer-first customer identity and access management (CIAM) platform founded in 2020 and acquired by Twilio in November 2025. Built by former Plaid engineers, it offers an API-first alternative to Auth0 and similar incumbents, covering passwordless authentication, SAML/OIDC SSO, MFA, RBAC, SCIM, and fraud prevention in a single platform. Stytch serves both B2C and B2B SaaS use cases with native multi-tenancy, an embeddable admin portal, and machine-to-machine auth. In 2025, the company expanded into AI agent identity with its Connected Apps product, enabling OAuth 2.1-based authorization for MCP-compatible AI agents. It operates a usage-based free tier supporting up to 10,000 monthly active users and agents.

Stytch is an API-first identity platform providing authentication, authorization, and fraud prevention for human users and AI agents. Its core products span passwordless auth methods (magic links, OTPs, passkeys, WebAuthn), enterprise SSO and SCIM, RBAC, native multi-tenancy, device fingerprinting, and bot detection. The Connected Apps product extends Stytch to serve as an OAuth 2.1 identity provider for AI agents and MCP-based integrations, enabling scoped, auditable, user-consented agent access with instant revocation. Stytch is now a subsidiary of Twilio following its November 2025 acquisition.