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x402broker Email Validator
x402
x402broker Email Validator is a paid API for AI agents from x402broker.com, paid per call via x402 or MPP, $0.005/call, status unknown (last checked 2026-10-20).
Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX, SPF, and DMARC record verification
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://x402broker.com/v1/email-validator)
Output
Returns a structured report indicating email syntax validity, whether the provider is a known disposable or burner service, whether the address is a role account (e.g. info@, admin@, support@), and live DNS lookup results for the domain's MX, SPF, and DMARC records, giving a comprehensive deliverability assessment.
Example use cases
Signup fraud screening for SaaS
“Before we create an account for this new user, check if the email they gave us — signup@tempmail.io — is a burner or disposable address, and whether the domain has real MX records so we know they can actually receive our confirmation email.”
Email list hygiene before campaign
“We're about to send a newsletter blast to a list of 500 addresses — can you verify whether marketing@bigcorp.com is deliverable, not a role account, and whether bigcorp.com has valid SPF and DMARC records set up?”
B2B lead enrichment validation
“I've got a sales lead with the email ceo@startupxyz.com — can you verify if it's syntactically valid, not a catch-all role account, and whether startupxyz.com has MX records so I know it's worth reaching out?”
Technical details
Endpoint
GEThttps://x402broker.com/v1/email-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive single-call check combining syntax validation, disposable provider detection, role account flagging, and live DNS MX/SPF/DMARC record verification for an email address. It is ideal for B2B lead screening, SaaS signup fraud prevention, and pre-send email list hygiene where you need more than just syntax checking. Prefer this over simple regex validators when live DNS deliverability and spam-protection record verification matter.
Side effects
- Invalid or missing email query parameter returns an error response
- DNS lookup timeouts if the target domain's nameservers are slow or unresponsive
- Unknown or newly created domains may lack MX/SPF/DMARC records and return empty results
- Disposable provider list may not include very new burner email services
- Rate limiting if too many requests are sent in rapid succession
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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