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SaaS Platformsmoderate complexity
Multi-Tenant SaaS Starter Architecture
Production-ready architecture for multi-tenant SaaS applications with authentication, billing, team management, and tenant isolation.
Architecture
System Components
Key building blocks of this architecture, layered from infrastructure up
01
Authentication Layer
Multi-provider auth with SSO, MFA, and session management. See the NextAuth setup playbook.
NextAuth.jsOAuth 2.0JWT
02
Multi-tenancy
Shared PostgreSQL with row-level security for tenant isolation. Walk through the multi-tenant playbook for the full pattern.
PostgreSQLRLSPrisma
03
Billing System
Subscription management with usage-based billing. Compare options in Stripe vs Adyen.
StripeWebhooksMetering
04
Team Management
Role-based access control with invitations and permissions. Common across SaaS products.
RBACInvitationsAudit Logs
05
API Layer
RESTful API with rate limiting and API key management. See the API security playbook.
Next.js API RoutesRedisOpenAPI
Planning
Key Considerations
Important factors to keep in mind when implementing this architecture
Plan for data isolation requirements early - schema-per-tenant vs. shared tables
Consider compliance from the start (SOC 2, GDPR) - see healthcare and fintech
Design billing integration to handle upgrades, downgrades, and prorations
Need a build partner? Start a project.
Options
Alternatives to Consider
Other approaches that might fit your specific needs
Clerk for managed auth - see Supabase vs Firebase
Supabase for faster MVP - pair with the MVP service
PlanetScale for global database distribution
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