Confirm

Last 30 days

Uptime

100%

Response time

382 ms typical, 530 ms slowest 5%

Last check

3 h ago

Next check

any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://livecheck.fly.dev/v1/confirm" \
  -H "content-type: application/json" \
  -d '{"intent":"lead_submit","url":"https://livecheck.fly.dev/demo/thank-you?ref=ABC123"}'

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const client = new x402Client().register(
  "eip155:8453",
  new ExactEvmScheme(privateKeyToAccount(process.env.AGENT_KEY)),
);
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? Preflight it first for $0.005:
// GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Flivecheck.fly.dev%2Fv1%2Fconfirm
const res = await pay("https://livecheck.fly.dev/v1/confirm", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"intent":"lead_submit","url":"https://livecheck.fly.dev/demo/thank-you?ref=ABC123"}),
});
console.log(await res.json());

Example input

{
  "intent": "lead_submit",
  "url": "https://livecheck.fly.dev/demo/thank-you?ref=ABC123"
}

Example output

{
  "canonical_url": "https://livecheck.fly.dev/demo/thank-you?ref=ABC123",
  "confidence": 0.92,
  "effect": {
    "id": "ABC123",
    "type": "lead_submit"
  },
  "evidence_id": "ev_01example",
  "evidence_level": 2,
  "evidence_strength": 2,
  "example": true,
  "fetched_at": "2026-09-06T17:00:00Z",
  "http_status": 200,
  "id": "cfm_01J8Z0K3N4P5Q6R7S8T9V0WXYZ",
  "independent_evidence": true,
  "independent_signals": 1,
  "note": "Illustrative shape of a live POST /v1/confirm. GET /demo/thank-you?ref=ABC123 is HTTP 200 and prints Confirmation number ABC123, so this input is confirmed. A ref that appears only in the URL is not proof.",
  "price_usd": 0.1,
  "receipt": {
    "hash": "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
    "verify_url": "https://livecheck.fly.dev/v1/receipt/cfm_01J8Z0K3N4P5Q6R7S8T9V0WXYZ"
  },
  "route": "confirm",
  "signals": [
    "cookieless_fetch",
    "confirmation_url_token",
    "confirmation_id",
    "level_2"
  ],
  "url": "https://livecheck.fly.dev/demo/thank-you?ref=ABC123",
  "verdict": "confirmed"
}

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