> ## Documentation index
> Fetch the complete documentation index at: https://arize.com/llms.txt
> Ask it with GET https://arize.com/ask?q=<keywords or question>. Short keywords rank best.
> Use these to discover all available pages before exploring further.

# Can I add other users to my Phoenix Instance?

Yes. Phoenix supports multiple users through [authentication](/docs/phoenix/self-hosting/features/authentication), with role-based access control, API keys, and OAuth2/SSO.

Enable authentication on your deployment, then invite team members and assign roles from the **Settings** page. See [Authentication](/docs/phoenix/self-hosting/features/authentication) for setup instructions.