$0.01
per call · USD Coin on Base
Give this tool a list of domain names and it will instantly check each one's DMARC email security record. DMARC is a standard that tells email providers how to handle fake or spoofed emails pretending to come from your domain. For each domain you submit, you get back whether a valid record exists, what the policy is (none, quarantine, or reject), whether reporting addresses are set up, and the full raw record text. Perfect for auditing many domains at once without any setup.
Endpoint
POST https://dmarc-lookup.underscoredone.com/dmarc-lookup3
Calls / 30d
3
Unique payers / 30d
Sep 1
Last called
exact
Payment scheme
Call this service
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://dmarc-lookup.underscoredone.com/dmarc-lookup", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"domains": [
"onescales.com",
"hillms.com",
"google.com"
]
}),
});
const data = await res.json();curl -X POST \
"https://dmarc-lookup.underscoredone.com/dmarc-lookup" \
-H "Content-Type: application/json" \
-d '{"domains":["onescales.com","hillms.com","google.com"]}' \
-H "X-PAYMENT: <signed x402 payment>"Example response
{
"api_version": "1.0.0",
"invalid_count": 0,
"not_found_count": 1,
"results": [
{
"domain": "onescales.com",
"domainPolicy": "reject",
"rawRecord": "v=DMARC1;p=reject;rua=mailto:3e873edd60aa449aa519421775786d39@dmarc-reports.cloudflare.net,mailto:dmarc@onescales.com,mailto:27da9b4b47@rua.easydmarc.us;ruf=mailto:27da9b4b47@ruf.easydmarc.us;fo=1;",
"recordStatus": "Valid",
"reportingEnabled": true
},
{
"domain": "hillms.com",
"domainPolicy": "reject",
"rawRecord": "v=DMARC1;p=reject;rua=mailto:info@hillms.com;",
"recordStatus": "Valid",
"reportingEnabled": true
},
{
"domain": "nodmarc-example.com",
"domainPolicy": "",
"rawRecord": "",
"recordStatus": "Not Found",
"reportingEnabled": false
}
],
"total": 3,
"valid_count": 2
}Payment details
0xe9740820225b3918b4ddd1292c7ca4ca0e2c2f08USD Coin · 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913Is this your API?
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