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

# Authentication

> How to log in to the Heify Sandbox using email OTP.

The Sandbox uses a **passwordless, OTP-based** authentication flow. Enter your email, receive a 6-digit one-time code, and log in — no password required.

<Card title="Go to Sandbox" icon="arrow-up-right-from-square" href="https://sandbox.heify.com">
  sandbox.heify.com
</Card>

<Info>
  Access is restricted to accounts registered by an administrator. If you don't have access yet, use the **Don't have an account?** link on the login screen or [contact us](https://heify.com/contact).
</Info>

***

## Login flow

<Steps>
  <Step title="Enter your email">
    Type your registered email address and accept the Terms & Conditions. Click **Send Code** to receive your one-time code.

    The button is disabled while the request is in progress or while the T\&C checkbox is unchecked.
  </Step>

  <Step title="Enter the 6-digit code">
    Check your inbox for a 6-digit numeric code. Enter each digit in the verification inputs — focus advances automatically as you type.

    The code is valid for **3 minutes**. A live countdown timer is shown on screen.

    <Note>
      You can paste the full 6-digit code directly into the input field — it will be distributed automatically across all boxes.
    </Note>

    If the timer runs out before you verify, click **Resend code** to receive a new one. Use **Change email** to go back to Step 1.
  </Step>

  <Step title="Access granted">
    After successful verification, the Sandbox loads your workspace and redirects you to the dashboard. Your API key is provisioned automatically in the background.
  </Step>
</Steps>

***

## OTP keyboard shortcuts

When entering the 6-digit code, the following keyboard interactions are supported:

| Action                      | Result                                        |
| --------------------------- | --------------------------------------------- |
| Type a digit                | Fills the box and moves focus to the next one |
| `Backspace` on an empty box | Moves focus to the previous box               |
| `←` / `→`                   | Moves focus between boxes                     |
| Paste (`Ctrl+V` / `Cmd+V`)  | Distributes clipboard digits across all boxes |

***

## Error reference

| Error                            | When it occurs                                                        |
| -------------------------------- | --------------------------------------------------------------------- |
| User not found                   | The email is not registered in the system                             |
| Error sending the code           | Generic failure when requesting the OTP                               |
| Incorrect code                   | The entered code does not match the one sent                          |
| Too many attempts                | Excessive failed attempts — the system resets to Step 1 automatically |
| Code expired                     | More than 3 minutes have passed since the code was sent               |
| Error verifying the code         | Generic failure when checking the OTP                                 |
| Must accept Terms and Conditions | Submission attempted without checking the T\&C checkbox               |

***

## After login

Once the code is verified:

1. Your session is established.
2. Your account and organization information is loaded.
3. The **Sandbox API key is auto-provisioned** — a brief *"Setting up the sandbox…"* notice may appear.
4. You are redirected to `/sandbox`.

***

## Language

A globe icon in the top-right corner of the login screen toggles the interface language between **English** and **Spanish**. The preference is saved in the browser and persists across sessions.

***

<CardGroup cols={2}>
  <Card title="Sandbox Overview" icon="flask" href="/sandbox">
    Learn about the Sandbox and its core workflow
  </Card>

  <Card title="API Keys & Team" icon="key" href="/sandbox/api-keys">
    Manage API keys and invite team members
  </Card>
</CardGroup>