SecurityWorkOS
Developer-first enterprise identity — SAML SSO, SCIM, audit logs and AuthKit behind OpenAI, Cursor and Vercel
Security
SecurityZITADEL
Open-source, multi-tenant identity infrastructure with SSO, MFA, passkeys, and an event-sourced audit trail.
SecurityStytch
Developer-first identity platform with passwordless auth, passkeys, SSO, fraud prevention and AI-agent identity in a single API.
SecurityLogto
Open-source auth infrastructure with multi-tenancy, SSO, and RBAC built on OIDC and OAuth 2.1.