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agentdiet Email Validator
x402
agentdiet Email Validator is a paid API for AI agents from agentdiet.dev, paid per call via x402 or MPP, $0.005/call, status unknown (last checked 2026-10-20).
Validates email addresses for syntax, disposable/burner status, role account detection, and live DNS MX/SPF/DMARC record checks to assess deliverability.
Price / call$0.005
Success—
StatusUnknown
How this service works
Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records. (Live x402 v2, IETF MPP & MCP endpoint at https://agentdiet.dev/v1/email-validator)
Output
Returns a structured report indicating whether the email passes syntax checks, whether the provider is a known disposable/burner service, whether the address is a role account (e.g. noreply@, info@), and live DNS lookup results for the domain's MX, SPF, and DMARC records — giving an overall deliverability assessment.
Example use cases
Screen signups for fake emails
“Before we onboard this new user, can you verify that their email address burner123@mailinator.com is legitimate and not a throwaway or disposable address, and whether the domain actually accepts email?”
Email list hygiene before campaign
“I'm about to send a marketing email to noreply@bigcorp.com — can you check if it's a real deliverable address, whether it's a role account, and whether the domain has proper SPF and DMARC records set up?”
B2B lead email verification
“I got a lead with the email contact@startupxyz.io — can you verify it's not a burner, check if the domain has MX records and email authentication set up, and tell me if it looks safe to reach out to?”
Technical details
Endpoint
GEThttps://agentdiet.dev/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, single-call check covering both static validation (syntax, disposable provider detection, role account flagging) and live DNS verification (MX, SPF, DMARC) in one step. Prefer it over basic regex-only validators when deliverability and email authentication posture matter, such as before sending transactional email, onboarding new users, or qualifying B2B leads.
Side effects
- Invalid or missing email query parameter returns an error
- DNS lookup failures for domains with no MX records
- Timeout on slow or unresponsive DNS servers
- False negatives on newly created disposable providers not yet in the blocklist
- Rate limiting or payment failure resulting in 402 response
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emailrequired | string | Email address to validate for syntax, MX deliverability, and disposable risk |
Output
Schema · Response
{
"type": "object"
}Tags
x402
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