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Email Verification API (api-production-17e1)
x402
Email Verification API (api-production-17e1) is a paid API for AI agents from api-production-17e1.up.railway.app, paid per call via x402, $0.001/call, status down (last checked 2026-08-24).
Verifies an email address by checking syntax, MX records, disposable domain status, and role-address flags, returning a deliverability classification.
Price / call$0.001
Success—
StatusDown
How this service works
Email verification for AI agents — checks syntax, whether the domain accepts mail (MX), and flags disposable and role addresses, returning deliverable/risky/undeliverable. Pay-per-call in USDC via x402 — no signup, no API key. Use to clean lists and qualify contacts before sending outreach.
Output
Returns a deliverability classification (deliverable / risky / undeliverable) along with individual check results: syntax validity, whether the domain has MX records, whether the domain is a known disposable provider, and whether the address is a role-based address.
Example use cases
Pre-outreach contact email qualification
“Before I send my sales sequence to the leads I scraped this week, can you run through each of their email addresses and flag any that are undeliverable, disposable, or role-based accounts like sales@ or noreply@? I only want to reach out to real, deliverable contacts.”
Clean email list before campaign
“I've got a CSV of about 200 newsletter subscribers I want to email next week — can you check all of them for deliverability issues, pull out any that are from throwaway domains or have bad syntax, and give me a clean list of only the ones that are safe to send to?”
Flag throwaway signup emails
“A new user just signed up with the email temp-user@mailinator.com — can you check if that's a real deliverable address or just a disposable throwaway account someone used to avoid giving their real email?”
Technical details
Endpoint
GEThttps://api-production-17e1.up.railway.app/email/verifyWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call email validation with no signup or API key — ideal for one-off contact qualification, pre-send list hygiene, or when building an agent pipeline that needs to screen email addresses for deliverability, disposable providers, and role-account risk before outreach.
Side effects
- Invalid or malformed email address input returns syntax error or undeliverable status
- Domain has no MX records — classified as undeliverable
- Payment not received or insufficient USDC — request rejected with 402
- Network timeout when querying MX records for the domain
- Unknown or newly registered domain may produce uncertain results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| urlrequired | string | The page URL to unfurl. |
Tags
x402
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