Certificate transparency search · Cert Transparency

import { wrapFetchWithPayment } from "@x402/fetch";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.PRIVATE_KEY);
const fetchWithPay = wrapFetchWithPayment(fetch, account);

const res = await fetchWithPay("https://agent402.tools/api/cert-transparency", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({
    "domain": "agent402.tools"
  }),
});
const data = await res.json();

curl -X POST \
  "https://agent402.tools/api/cert-transparency" \
  -H "Content-Type: application/json" \
  -d '{"domain":"agent402.tools"}' \
  -H "X-PAYMENT: <signed x402 payment>"

{
  "certs": [
    {
      "commonName": "agent402.tools",
      "id": 1234567890,
      "issuer": "C=US, O=Let's Encrypt, CN=E5",
      "notAfter": "2027-02-14T23:59:59",
      "notBefore": "2026-01-15T00:00:00",
      "sans": [
        "agent402.tools"
      ],
      "serial": "0a:1b:2c"
    }
  ],
  "count": 2,
  "domain": "agent402.tools",
  "queriedAt": "2026-06-19T22:00:00.000Z",
  "subdomains": [
    "agent402.tools"
  ],
  "truncated": false
}