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Tanod Web Email Verifier
x402
Tanod Web Email Verifier is a paid API for AI agents from web.tanod.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-13).
Validates an email address by checking syntax, DNS/MX records, and known provider characteristics to assess deliverability.
Price / call$0.001
Success—
StatusUnknown
How this service works
Web tools: search, page to Markdown or screenshot, company profile and jobs, sitemaps, RDAP, IP.
Output
A JSON object containing: the normalized email address and its local part and domain, a deliverability verdict (e.g. 'deliverable_likely'), a syntax validity flag, MX hosts list, flags for disposable provider, free provider, role account, null MX, implicit MX, and SMTP checked status, plus any explanatory notes and reasons list.
Example use cases
Screen sign-up email for fraud
“Before I create an account for this user, can you verify that their email address throwaway123@mailinator.com is real and not from a disposable or fake provider?”
Validate B2B lead list email
“I have a sales lead with the email info@acmecorp.com — can you check if it's a valid deliverable address and whether it's a role-based account I should avoid cold-emailing?”
Pre-send deliverability check
“I'm about to send a newsletter to newsletter@yahoo.com — can you tell me if the email is syntactically valid, has MX records, and is likely to be deliverable?”
Technical details
Endpoint
POSThttps://web.tanod.dev/v1/email/verify?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, DNS-level email validation check without contacting the mail server — ideal for pre-screening user-submitted emails, filtering leads, or flagging disposable/role addresses before sending. Prefer it over SMTP-based verifiers when you want low latency and don't need live mailbox confirmation.
Side effects
- Invalid or missing email input returns a validation error
- Domain with no DNS records may produce has_mx: false with empty mx_hosts
- SMTP is not contacted so mailbox existence cannot be confirmed (smtp_checked: false always)
- Newly registered domains may not yet have MX records even if valid
- Rate limits or payment failures return HTTP 402 or 429
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| string | The email address to check. |
Output
Schema · Response
{
"type": "json",
"example": {
"email": "someone@gmail.com",
"notes": [
"DNS-only check: the mail server was not contacted, so mailbox existence is not verified"
],
"domain": "gmail.com",
"has_mx": true,
"null_mx": false,
"reasons": [
"free_provider"
],
"verdict": "deliverable_likely",
"mx_hosts": [
"gmail-smtp-in.l.google.com",
"alt1.gmail-smtp-in.l.google.com"
],
"disposable": false,
"local_part": "someone",
"normalized": "someone@gmail.com",
"implicit_mx": false,
"role_account": false,
"smtp_checked": false,
"syntax_valid": true,
"free_provider": true
}
}Tags
x402
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