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EchoEmpire Email MX Lookup & Validation
x402
EchoEmpire Email MX Lookup & Validation is a paid API for AI agents from echoempire-demand-gateway.echoempire-in-co.workers.dev, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-31).
Validates an email address by checking MX records, syntax, disposability, and deliverability — pay-per-call via USDC with no account required.
Price / call$0.003
Success—
StatusUnknown
How this service works
Pay-per-call web utilities in USDC on Base via x402 — no account, no API key. Every paid call is publicly verifiable at /ledger.json.
Output
A JSON object containing: the original email and extracted domain, a list of MX host records with priorities, boolean flags for hasMx, syntaxValid, disposable, and role, plus a human-readable verdict string (e.g. 'deliverable_domain') summarizing overall deliverability.
Example use cases
Pre-signup email quality gate
“Before we add this new user to our system, can you verify that sarah.jones@startup.io is a legitimate, deliverable email — not disposable or a catch-all — and that the domain actually has mail servers set up?”
Cold outreach list hygiene
“I'm about to send a cold email campaign and I need to know if contact@acmecorp.com is a real deliverable address or a role-based inbox I should avoid targeting.”
Detect throwaway email at checkout
“A user just signed up with temp-mail@guerrillamail.com — can you tell me if that's a disposable email address I should flag or reject?”
Technical details
Endpoint
GEThttps://echoempire-demand-gateway.echoempire-in-co.workers.dev/v1/email-mx?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call, no-signup email validation with MX record data, deliverability verdict, and disposable/role detection — especially when working in a serverless or agent context where paying $0.003 per call in USDC is preferable to maintaining an API subscription. Ideal for spot-checking individual addresses rather than bulk validation pipelines.
Side effects
- Invalid or malformed email address returns syntaxValid: false with no MX data
- Domain with no MX records returns hasMx: false and a non-deliverable verdict
- Payment failure or insufficient USDC balance returns HTTP 402
- Network or DNS resolution errors may return a 500-level error
- Disposable/temporary email services are flagged but the domain may still technically resolve
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"mx": [
{
"host": "mx.example.com",
"priority": 10
}
],
"role": false,
"email": "jane@example.com",
"hasMx": true,
"domain": "example.com",
"verdict": "deliverable_domain",
"disposable": false,
"syntaxValid": true
}
}Tags
x402
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