Create a Scriptivox account with Google, or with an email address and a password. No payment card is required. The form fields are email (required, the address the confirmation is sent to), password (required, minimum 6 characters), confirmPassword (required, must equal password), firstName (required), lastName (optional).
Submitting the form sends a confirmation email — the account is not usable until that link is followed. After confirming you land on onboarding, then the dashboard.