> ## Documentation Index
> Fetch the complete documentation index at: https://devkit4ai.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Multi-Tenant Patterns

> Keep project data isolated while sharing the event-sourced backend.

The Starter Kit inherits multi-tenancy from the backend event store:

* Every authenticated request includes the project ID and API key headers that the backend projectors expect.
* Read models in the Cloud API scope responses by project, so your UI receives only the data associated with the keys in use.
* When extending functionality, continue emitting events and projecting read models per the guidance in `devkit4ai/backend-api/SPECS.md` to preserve isolation.

We will back this page with diagrams and database examples sourced directly from the production schema.