80trust / 100

Email Verify

by Tanod dnspeek in Email & messaging

x402 APIPassing, checked 2 h ago

Verify an email address: check its syntax and DNS (MX) to see whether it can receive mail, no SMTP. Input: email. Returns a verdict, MX hosts and disposable, role and free-provider flags. Use when an agent must decide whether an email address looks deliverable before sending or storing it.

POST https://tanod.dev/v1/email/verify

Last 30 days

All checks passedSome failedAll failedNot checked
Uptime
100%
Response time
272 ms typical, 383 ms slowest 5%
Last check
2 h ago
Next check
any minute now

How to call it

# See the payment challenge (nothing is charged)
curl -i -X POST "https://tanod.dev/v1/email/verify" \
  -H "content-type: application/json" \
  -d '{"email":"[email protected]"}'
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%2Ftanod.dev%2Fv1%2Femail%2Fverify
const res = await pay("https://tanod.dev/v1/email/verify", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({"email":"[email protected]"}),
});
console.log(await res.json());

Example input

{
  "email": "[email protected]"
}

Example output

{
  "disposable": false,
  "domain": "gmail.com",
  "email": "[email protected]",
  "free_provider": true,
  "has_mx": true,
  "implicit_mx": false,
  "local_part": "someone",
  "mx_hosts": [
    "gmail-smtp-in.l.google.com",
    "alt1.gmail-smtp-in.l.google.com"
  ],
  "normalized": "[email protected]",
  "notes": [
    "DNS-only check: the mail server was not contacted, so mailbox existence is not verified"
  ],
  "null_mx": false,
  "reasons": [
    "free_provider"
  ],
  "role_account": false,
  "smtp_checked": false,
  "syntax_valid": true,
  "verdict": "deliverable_likely"
}

Security scan

  • No findings. We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402383 ms$0.001
5 h agoPassed402272 ms$0.001
10 h agoPassed402258 ms$0.001
13 h agoPassed402275 ms$0.001
16 h agoPassed402831 ms$0.001
21 h agoPassed402270 ms$0.001

History

11 Oct 2026Price changed from $0.002 to $0.001