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

# Authentication

## Authentication

The **Sign-in Methods** section in your [**Account Settings**](https://app.treasury.sh/settings/account) lets you manage how you sign in to Treasury. Treasury is **passwordless** — you sign in with a passkey or a connected account, never a password to remember or leak.

<Frame>
  <img className="block dark:hidden" src="https://mintcdn.com/treasury/OmhP8gkUyyErM0vq/images/account/settings-full-light.png?fit=max&auto=format&n=OmhP8gkUyyErM0vq&q=85&s=681ac2fbf31597657294dc134cf182eb" alt="The Account settings page with the Sign-in Methods section: passkey, connected accounts, and add buttons" width="2880" height="1800" data-path="images/account/settings-full-light.png" />

  <img className="hidden dark:block" src="https://mintcdn.com/treasury/OmhP8gkUyyErM0vq/images/account/settings-full-dark.png?fit=max&auto=format&n=OmhP8gkUyyErM0vq&q=85&s=6e50598dcf060a0efc96a04ab3624f3f" alt="The Account settings page with the Sign-in Methods section: passkey, connected accounts, and add buttons" width="2880" height="1800" data-path="images/account/settings-full-dark.png" />
</Frame>

You can use any combination of the following secure sign-in methods — **Passkey**, **Google**, and **Apple**:

<Tabs>
  <Tab title="Passkey">
    Passkeys let you sign in without using a password.

    They’re a modern, secure login method that uses your device — such as Face ID, Touch ID, or your computer’s built-in authentication system.

    #### Add a Passkey

    1. Click **Add Passkey** under the **Authentication** section.
    2. Follow your device’s prompt to create a passkey.
    3. Once created, it will appear in your authentication list (for example, “Mac (Chrome)”).

    You can have multiple passkeys (for different devices) or remove one at any time by clicking the **×** icon next to it.

    <Warning>
      Removing a passkey means you won’t be able to use that specific device to sign in until a new
      passkey is created.
    </Warning>
  </Tab>

  <Tab title="Google Authentication">
    Google OAuth allows you to sign in using your existing Google account.\
    It’s quick, secure, and doesn’t require you to remember another password.

    #### Connect Google Authentication

    1. Click **Sign in with your Google account** under the **Authentication** section.
    2. Follow the prompts to link your Google account securely.
    3. Once connected, you’ll see it listed as **Google OAuth**.

    You can disconnect Google authentication at any time by clicking the **×** next to it.
  </Tab>
</Tabs>

***

### Using Multiple Sign-In Methods

You can enable both **Passkey** and **Google Authentication** for added security and flexibility.

For example, use a passkey for quick sign-ins on your personal device and Google sign-in when accessing Treasury from another location.

Your authentication list displays the methods currently linked to your account, including when each one was last used.

<Tip>
  It’s a good idea to keep at least two authentication methods connected — for example, Passkey and
  Google — so you can always access your account, even if one method becomes unavailable.
</Tip>

## Related

<CardGroup cols={2}>
  <Card title="Connected Accounts" icon="link" href="/account/security/connected-accounts">
    Manage Google and Apple sign-in.
  </Card>

  <Card title="Passwords" icon="lock" href="/account/security/changing-password">
    Why Treasury doesn't use passwords.
  </Card>

  <Card title="Account Security" icon="shield-check" href="/account/security/two-factor-auth">
    How passkeys keep your account safe.
  </Card>

  <Card title="Profile" icon="user" href="/account/profile">
    Update your name and email.
  </Card>
</CardGroup>