Consumer sign-in
Clerk
Fast sign-up, passwordless login, user profiles, and basic org support.
Best when product-led growth matters and you want the quickest path to a polished auth flow.
Identity foundation
A practical auth stack for AI products that need sign-in, sessions, orgs, permissions, and account lifecycle flows without overbuilding identity too early.
Recommended layers
Consumer sign-in
Fast sign-up, passwordless login, user profiles, and basic org support.
Best when product-led growth matters and you want the quickest path to a polished auth flow.
Flexible self-managed auth
Session control, custom account rules, and more direct ownership of auth data.
Best when you want more control and can absorb more implementation work.
B2B identity
SSO, orgs, enterprise login, and stronger identity controls for business customers.
Best once teams, orgs, and enterprise requirements are part of the product.
Decision checks
One clean sign-in path that users can complete without confusion.
One session model that matches the product surface and account lifecycle.
One plan for orgs, roles, or team spaces only if you actually need them.
One fallback path for password reset, magic links, or login recovery.