Stytch

About

Stytch is an authentication and identity platform that gives developers APIs and SDKs to add login, authorisation and security to web and mobile apps. Its features include passkeys, passwords, SAML SSO, SCIM, multi-factor authentication, machine-to-machine authentication, role-based access control and multi-tenant organisation settings, plus an embeddable admin portal for enterprise customers. It also offers bot and fraud protection based on device intelligence, along with tools for authenticating AI agents, such as Connected Apps and support for remote MCP servers. In October 2025 Stytch announced that it had joined Twilio and said it would continue to develop and support the Stytch platform.