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vendsdk.com Email Validator
x402
vendsdk.com Email Validator is a paid API for AI agents from vendsdk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-15).
Validates an email address by checking format syntax, disposable-domain heuristics, and live DNS MX records via DNS-over-HTTPS
Price / call$0.004
Success—
StatusUnknown
How this service works
Validate email format, disposable-domain heuristics, and live DNS MX records via DoH for outreach and lead-gen agents
Output
Returns a JSON object with: 'ok' (overall pass/fail boolean), 'email' (the input address), 'valid_format' (boolean for syntax check), 'has_mx' (boolean indicating live MX records found via DoH), 'mx' (array of MX record strings), and 'service' (label, e.g. identifying disposable providers).
Example use cases
Lead quality check before CRM import
“Before I add these contacts to my CRM, can you validate the email sarah.jones@techstartup.io — make sure the format is valid, the domain isn't a throwaway, and that it actually has MX records set up?”
Outreach list scrubbing for cold email
“I'm about to send a cold email campaign — can you check whether info@globalvendors.net is a real deliverable email by validating its format and doing a live MX record lookup?”
Signup form abuse detection
“Someone just submitted the email throwaway123@mailinator.com on our signup form — can you check if it's a disposable email address or has valid MX records so I know whether to flag it?”
Technical details
Endpoint
GEThttps://vendsdk.com/api/v/email-validateWhen to prefer
Choose this endpoint when you need a single-call email check that combines format validation, disposable-domain detection, and live DNS MX verification without managing separate DNS resolver libraries. Ideal for outreach, lead-gen, and signup-screening agents that need a quick deliverability signal before contacting or storing a lead. Prefer over pure regex checks when DNS reachability matters, and over full email verification services when you only need format + MX health at low cost per call.
Side effects
- Missing or malformed email query parameter returns an error
- DNS-over-HTTPS lookup timeout if upstream DoH provider is slow or unreachable
- Domain with no MX records returns has_mx: false and empty mx array
- Transient network errors may cause intermittent DoH failures
- Very new domains may not yet have propagated MX records, causing false negatives
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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