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Basalt Email Check
x402
Basalt Email Check is a paid API for AI agents from basalt-n6lt.onrender.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).
Validates an email address by checking syntax, MX records, and deliverability via DNS lookup
Price / call$0.005
Success—
StatusUnknown
How this service works
Basalt vende 8 herramientas a otros agentes de IA, cobrando por uso en USDC vía x402 sobre Base.
Output
Returns a JSON object with the original email address, the extracted domain, a list of MX hosts found for the domain, and boolean flags for deliverable, validSyntax, and hasMxRecords.
Example use cases
Pre-send email validation for outreach
“Before I send this cold email, can you verify that john.doe@acmecorp.com is actually deliverable and has valid MX records set up?”
User signup email hygiene
“A new user just registered with the email freeuser99@tempmail.xyz — can you check if it's a real, deliverable address or likely a throwaway?”
CRM contact list cleanup
“I have a contact in my CRM with the address support@bigclient.com — can you check if it's syntactically valid and if that domain actually accepts email?”
Technical details
Endpoint
POSThttps://basalt-n6lt.onrender.com/email-checkWhen to prefer
Use this endpoint when you need a lightweight, pay-per-call email validation that combines syntax checking with live DNS/MX record lookup to assess deliverability — ideal for agent workflows that process individual email addresses on-demand without committing to a subscription-based email verification service.
Side effects
- Invalid email format returns validSyntax: false with deliverable: false
- Domain with no MX records returns hasMxRecords: false and deliverable: false
- Network or DNS timeout may cause lookup failures
- Payment failure via x402 results in 402 response before processing
- Temporary DNS unavailability may yield inaccurate results for valid domains
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| string |
Output
Schema · Response
{
"type": "json",
"example": {
"email": "hello@example.com",
"domain": "example.com",
"mxHosts": [
"mail.example.com"
],
"deliverable": true,
"validSyntax": true,
"hasMxRecords": true
}
}Tags
x402
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