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orbit Web Tools: Email Address Validator
x402
orbit Web Tools: Email Address Validator is a paid API for AI agents from orbit-web.orbit-builder.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-29).
Validates an email address for RFC syntax, MX/DNS records, disposable domain, role account, free provider, typo suggestions, SPF/DMARC, and returns a valid/risky/invalid verdict — without sending any mail.
Price / call$0.001
Success—
StatusUnknown
How this service works
Web utilities for agents, computed live at call time: URL health/redirect/x402 check, web page to Markdown (robots.txt honoured), DNS lookup with SPF/DMARC, email address validation (MX, disposable, role, typo), HTTP security-header audit and AI-agent readiness audit (llms.txt, AI crawler rules, x402, MCP, OpenAPI). $0.001 per call. By orbit-builder.
Output
A JSON object containing: the email and domain, syntax_ok boolean, mx records array, verdict string (valid/risky/invalid), reasons array explaining the verdict, disposable boolean, role boolean, free_provider boolean, suggestion for typo correction (or null), and SPF/DMARC presence flags.
Example use cases
Block disposable emails at signup
“Before I add this new user to our database, check if their email throwaway9231@mailinator.com is from a disposable domain and whether it gets a valid, risky, or invalid verdict.”
Fix typos in collected emails
“A user submitted the email john.doe@gmial.com in our form — can you check it for typos and tell me what the correct domain should be?”
Qualify leads before email campaign
“I'm about to send a campaign to sales@bigcorp.io — check if it's a real deliverable address, whether it's a role account, and if the domain has proper MX and SPF records set up.”
Technical details
Endpoint
GEThttps://orbit-web.orbit-builder.workers.dev/v1/email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a comprehensive, non-intrusive email validation that goes beyond simple regex — covering MX/DNS, disposable detection, role accounts, free providers, typo suggestions, and SPF/DMARC, all without sending a probe email. Ideal for pre-validating leads, signups, or contact lists at scale at $0.001 per call. Prefer alternatives if you need actual mailbox probing (SMTP RCPT TO) or real-time deliverability confirmation.
Side effects
- Missing or malformed email query param returns an error or runs example input
- Domain has no MX and no A record fallback — may return invalid verdict
- Disposable domain list may not cover all providers (false negatives possible)
- SPF/DMARC checks depend on DNS availability at call time
- Network timeouts to DNS-over-HTTPS resolvers could cause intermittent failures
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"mx": [
"1 aspmx.l.google.com."
],
"role": true,
"email": "info@github.com",
"domain": "github.com",
"reasons": [
"role account"
],
"verdict": "risky",
"syntax_ok": true,
"disposable": false,
"suggestion": null,
"free_provider": false
}
}Tags
x402
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