Handling results

Never trust the client result alone. The token (vyt) is proof, not a verdict; it exchanges for 30 minutes, secret key only. Do it inside the handler that performs the gated action so the proof and the action never exist apart.

With the token
Without a token

const VY_SK = process.env.VY_SK;

const res = await fetch(`https://trust.verifyyou.com/v3/confirmations/${token}`, {
  headers: { Authorization: `Bearer ${VY_SK}` },
});

if (!res.ok) {
  // 404 token_invalid  not a token we issued, or not yours; never let them through
  // 410 token_expired  older than the confirmation window; have them run it again
  throw new Error(`verifyyou confirm: ${res.status}`);
}

const { verified, status, reasons } = await res.json();

// use verified for the gate; when it's falsy they failed
if (!verified) {
  // status is "denied", or "approved" with reasons (flagged)
  // `reasons` says why, e.g. ["collision_company"]
  return { allowed: false, status, reasons };
}

return { allowed: true };

const VY_SK = process.env.VY_SK;

const res = await fetch("https://trust.verifyyou.com/v3/confirmations", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${VY_SK}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ email: user.email }),
});

if (res.status === 404) {
  // no_settled_pass: this credential has never finished a run with you
  return { allowed: false, status: "none", reasons: [] };
}
if (!res.ok) {
  // 400 one_identifier_only / identifier_unrecognized: send exactly one, well formed
  throw new Error(`verifyyou lookup: ${res.status}`);
}

// Same body as the token read. It IS a pass, just the latest one.
const { verified, status, reasons } = await res.json();
return { allowed: verified, status, reasons };

The token-free read needs a credential to match on. An anonymous verification binds none, so it answers 404 no_settled_pass every time. On those checks the vyt is your only route to the verdict. See Anonymous checks.

With the token is the stronger check: it proves this run just finished, names exactly one pass, and puts no email in your request logs. Without a token is a recovery path: it answers whether the email or phone has verified, and lets a returning person skip another redirect. What it cannot tell you is whether they just did a check. We report verified: true | false. Pass or fail is your decision, and routing lives in your code, next to the action.

Gate on verified. vyc in the URL is a UI hint.
Fail closed on 404, 410, or a timeout. Fresh session, try again.
Test keys read test runs only. Never point a live action at a test key.
Consume each token once. Prefer your own idempotency over lock unless you mean one pass per human, ever.
Strip vyt and vyc from the URL after handoff.

Response fields and reasons: GET /v3/confirmations/{token}.

Integrating

Server API

Browser SDK

Reference