Seal

Seal Sandbox, controlled beta

Approve one payment, then watch Seal allow exactly that payment once and refuse everything else, with a signed record you check yourself.

Request sandbox access

We review within one business day and email your sandbox key. We first email you a six-digit code to confirm the address.

What you will see

  1. Approve EUR 4,800 to Harbour Print, once

    ApprovedWith a key only you hold.

  2. Pay as approved

    AllowedUse 1 of 1.

  3. Same payment to a new account

    RefusedThe reason names the account.

  4. Pay again

    RefusedThe approval is spent.

Check every record offline with the published verifier. See it in the demo console

What the sandbox is
  • A controlled beta. We review each request within one business day.
  • Your sandbox key is separate from production and works only in the sandbox.
  • Records are signed with a separate test key, not Seal’s issuer key, and are not in the public log.
  • Limits: 60 decisions a minute and 2,000 a day.
  • A key lasts 30 days from approval, and we can revoke it at any time.
  • A work email is required. Personal addresses are not accepted.
  • Sessions, your own policies and the evidence pack a reviewer accepts are not in the sandbox.

Real workflow

To use Seal on one of your own workflows, start with a free evidence review.

Book a free evidence review

Request sandbox access | Seal