Public sandbox

See the receipt flow before connecting a real lead.

Run a fixed, fictional sample through normalization and simulated destination verification. No API key, form fields, external CRM, or payment required.

Run the fixed sample →Inspect the API contract Review reliability terms

Fixed synthetic request

Run one safe sample through the receipt flow.

The button sends only the reserved-domain example shown here. There are no input fields, no external CRM delivery, no sign-in, and no browser storage.

{
  "name": "LeadProof Demo",
  "email": " leadproof-demo@EXAMPLE.INVALID ",
  "phone": "(312) 555-0142",
  "source": "public_sandbox_page"
}

example.invalid cannot receive email. The 555 number is fictional. The result is simulated.

WAITING

Your simulated receipt will appear here.

LeadProof will normalize the fixed fields, verify the sandbox destination, and return one ephemeral receipt.

WHAT THIS PROVES

The sandbox demonstrates LeadProof’s request normalization and receipt shape—not production network delivery.

Production requires a verified identity, an active trial or paid plan, an API key, a stable idempotency key, and an authorized public HTTPS destination. The no-card trial is the next step for testing that real path.

MOVE TO PRODUCTION

Protect 25 live deliveries with no card.

Use the same receipt contract with one authorized source and destination for 14 days.

Start the production trial →Score the workflow first Start Builder · $49/month