Multi-Tenant Authentication for Modern Apps
Run one authentication backend across many apps while keeping users, tokens, organizations, and roles isolated per app.
Most multi-tenant auth stacks fall apart once every product needs its own redirect rules, providers, and support workflows. 1Auth keeps the infrastructure centralized while the identity boundary stays local to each app.
What teams need from this feature
These are the operational constraints that usually turn a simple auth flow into infrastructure work.
- Shared user directories blur product boundaries when the same company ships multiple apps.
- Running a separate auth service or provider tenant for every product creates operational sprawl.
- OAuth credentials, redirect URLs, and admin policies eventually need to diverge by app.
How 1Auth handles it
1Auth ships the primitive as part of one backend instead of forcing each product to rebuild the same boundary.
App-scoped users and tokens
Users stay unique by app_id plus email, and JWTs carry audience and app_id together so one app cannot quietly accept another app's token.
Per-app provider configuration
Google, GitHub, Apple, email verification, and password recovery can all be configured per app instead of through one global identity pool.
Shared operations without shared identity
One backend serves multiple products, but organizations, roles, OAuth accounts, and admin actions stay inside the requesting app boundary.
Good fit when
The product gets stronger when the auth model matches the boundary of the app, not the convenience of the provider.
- You run multiple products and want one auth backend without forcing SSO between them.
- The same email address may legitimately represent different accounts in different apps.
- You want centralized maintenance, monitoring, and hardening instead of duplicating auth infrastructure.
FAQ
Questions teams ask before they ship
Does multi-tenant authentication here mean shared login across apps?
No. In 1Auth, multi-tenant refers to shared infrastructure with separate identity. Apps can share the backend without sharing user accounts.
Can one company use different providers in different apps?
Yes. Each app can carry its own OAuth credentials, redirect URLs, and auth policy, which is usually the real requirement in multi-product environments.
Related Pages
Keep exploring the 1Auth docs cluster
Each page below connects to the same app-scoped auth model from a different buying or implementation angle.
Keep the same email address isolated across separate apps so users, roles, providers, and tokens never merge by accident.
Support several independent products from one auth backend without forcing shared accounts, shared providers, or accidental SSO.
Design multi-tenant auth around app boundaries, explicit token scope, and operational clarity instead of bolting tenant labels onto a shared user table.