Authentication
Authentication and user management platform with prebuilt UI, sessions, organizations, and MFA. Clerk has official SDKs and quickstarts for TanStack React Start and React Router.
Clerk is a current TanStack partner, and we think they are a strong option for teams building in this part of the stack.
Resources for using Clerk with TanStack.
Clerk packages the painful parts of auth, including sign-in, sign-up, sessions, organizations, and MFA, into a well-documented product with good UI primitives.
Their official TanStack React Start and React Router support makes it easier to add auth without fighting route protection, session handling, and user flows.