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

# Sign in

> Sign in to ClinZero HMS with email, passkey, or two-factor authentication.

# Sign in

Open [app.clinzero.com](https://app.clinzero.com) and sign in with the account your workspace admin created for you.

## Email verification

Self-serve signup and new accounts must **verify the email address** before you can sign in. This protects your workspace from unauthorized access.

1. After signup you land on **Check your email** — we have already sent a verification link to your inbox (check spam or promotions if needed).
2. Open the email from ClinZero and choose **Verify email**. You can close the verification page at any time; your workspace is saved and the link stays valid.
3. When verification succeeds, go to **Sign in** with the same email and password.
4. If you need another link, use **Resend verification email** on that page, or return there from sign-in when verification is still pending.

Invited users who accept an invite through a trusted workspace link are verified automatically.

## Email and password

1. Enter your **email** and **password**.
2. If your workspace requires two-factor authentication (2FA), enter the code from your authenticator app or a **backup code**.
3. After sign-in, pick a **workspace** if you belong to more than one.

## Passkeys

If you registered a passkey under **Profile → Security**, you can sign in with that device or security key instead of (or in addition to) a password, depending on how your account is set up.

## Forgot password

1. On the sign-in page, choose **Forgot password**.
2. Enter your email and follow the reset link we send.
3. Set a new password, then sign in again.

## Two-factor authentication

Your workspace may require 2FA. See [Account security](/account/security) to enable an authenticator app and save backup codes.

<Note>
  If you lose access to your authenticator and backup codes, contact your workspace admin. They cannot read your codes, but they can help with account recovery through ClinZero support if needed.
</Note>

## Scheduled maintenance

Occasionally ClinZero runs planned maintenance.

* You may see a **yellow banner** at the top of sign-in or the portal. You can usually keep working. Finish critical lab publishes and other important work before the window when a time is shown.
* You can **dismiss** the banner for the current browser session. A compact **Scheduled maintenance** bar (or a construction icon in the portal header) stays available — choose **Show details** or the icon anytime to read the notice again.
* When soft maintenance starts while you are signed in, a short toast may appear once so you do not miss it.
* During a full cutover you may see a full-page **Maintenance in progress** message instead of the sign-in form. Use **Try again** after the window ends, or wait for the page to refresh automatically.

We restore access as soon as the work finishes.

## Next steps

* [Accept an invite](/getting-started/accept-invite) if you have not joined yet
* [Workspaces](/getting-started/workspaces) if you work in more than one hospital
* [Navigation](/getting-started/navigation) to learn the portal chrome