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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.

Go to Sandbox

sandbox.heify.com
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.

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Login flow

1

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.
2

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.
You can paste the full 6-digit code directly into the input field — it will be distributed automatically across all boxes.
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.
3

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.

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OTP keyboard shortcuts

When entering the 6-digit code, the following keyboard interactions are supported:
ActionResult
Type a digitFills the box and moves focus to the next one
Backspace on an empty boxMoves focus to the previous box
← / →Moves focus between boxes
Paste (Ctrl+V / Cmd+V)Distributes clipboard digits across all boxes

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Error reference

ErrorWhen it occurs
User not foundThe email is not registered in the system
Error sending the codeGeneric failure when requesting the OTP
Incorrect codeThe entered code does not match the one sent
Too many attemptsExcessive failed attempts — the system resets to Step 1 automatically
Code expiredMore than 3 minutes have passed since the code was sent
Error verifying the codeGeneric failure when checking the OTP
Must accept Terms and ConditionsSubmission attempted without checking the T&C checkbox

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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.

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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.

Sandbox Overview

Learn about the Sandbox and its core workflow

API Keys & Team

Manage API keys and invite team members