# Sign in with an email code
Source: https://docs.aden.space/docs/help/more/email-code-sign-in

Passwordless sign-in and sign-up with a one-time code sent by email. The window an AI app opens to connect Aden leads with it.
{/* Generated by `bun docs:publish` from docs/features/email-code-sign-in.md: edit the spec, not this file. */}

## What it is [#what-it-is]

Type your email and Aden sends you a code. Enter it and you are in. No
password. It works for a new account too: the code proves the inbox is
yours, then you add your name and accept the terms.

## Using it [#using-it]

**Connecting Aden to ChatGPT, Claude or another AI app.** The sign-in window
the app opens starts with your email. Enter the code from the email (or tap
**Paste**), and you are back on the Connect screen.

**On the login page.** Open **...** next to the sign-in buttons and choose
**Email me a code**. **Use a password instead** switches back.

The email's subject starts with the code, so it shows in the notification.
**Open Gmail** (or your mail app) opens the message for you. The email also
carries a link that signs you in the same way.