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

# Magic link

> Passwordless email sign-in (the default)

Magic link is Oxygen Cloud's default sign-in method. Users enter their
email, click the one-time link Oxygen sends them, and land in their
workspace — no passwords, no extra setup.

## How it works for users

1. The user enters their email on the sign-in screen.
2. Oxygen emails them a one-time sign-in link (valid for 15 minutes).
3. They click the link and land in the workspace they were invited to.

## What admins control

From **Manage → Authentication → Magic link** you can:

* Restrict sign-ins to specific email domains (e.g. `@acme.com`).
* Disable magic link entirely if you only want SSO sign-ins.

## Inviting teammates

Magic link works hand-in-hand with the invitation flow:
**Manage → Members → Invite**. Each invited email receives a magic
link that pre-populates the right role and workspace.