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How to set up multi-tenant auth with Clerk

Follow these steps in Evonx to implement organization-based multi-tenant auth with Clerk. Use this when B2B SaaS customers need isolated members, roles, and invites.

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Step-by-step

Enable Clerk organizations

Turn on Organizations in Clerk and define roles that match your product permissions.

Wire Clerk into the app

Add Clerk providers and middleware so every request carries user and active organization context.

Mirror orgs in your database

Store organization IDs on domain tables and never trust client-supplied tenant IDs alone.

Scope queries by organization

Enforce organization filters in repositories and APIs for every tenant-owned resource.

Add invites and role changes

Use Clerk invitations and sync membership webhooks into local membership tables.

Preview tenant isolation

Create two orgs in preview and confirm zero data leakage before merging.

Outcome

Clerk-backed multi-tenant auth with organizations, roles, and tenant-scoped data access you can ship.

Related resources

Build with ClerkEvonx does not claim an official Clerk partnership. Build applications that use Clerk for sign-up, sessions, and organizHow to build a CRMFollow these steps in Evonx to a working CRM repository with leads, accounts, opportunities, and activities you can prevHow to build a SaaSFollow these steps in Evonx to a multi-tenant SaaS codebase with organizations, roles, and billing integration hooks.How to build an admin dashboardFollow these steps in Evonx to an admin console with user management, settings, and audit visibility.How to build a customer portalFollow these steps in Evonx to a secure portal where customers manage profile data, tickets, and documents.How to build an inventory systemFollow these steps in Evonx to inventory software tracking SKUs, locations, adjustments, and low-stock signals.How to build an internal toolFollow these steps in Evonx to a focused internal app replacing spreadsheet workflows with approvals and history.

FAQ

Clerk vs Auth0 for multi-tenant SaaS?

Clerk organizations map cleanly to B2B SaaS. Auth0 shines when you need broad enterprise IdP customization.

Do I still need a local users table?

Usually yes for domain foreign keys and profile fields, keyed by Clerk user IDs.

How do billing and tenants relate?

Attach Stripe customers to organizations, not individual users, for B2B subscription plans.

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