the402 endpoint detail

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x402.forgemesh.io mx-record-email-check

https://x402.forgemesh.io/mx-record-email-check

payable

Validate an email address's syntax and confirm its domain has live mail servers configured (MX records, falling back to A record), returning the parsed domain and sorted mail hosts. For cleaning contact lists, pre-checking signup forms, and CRM enrichment agents that need to filter out addresses that can never receive mail.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.003
Network
base
Pay to
0x850363a27F0aC6fEb9C7a3eC4C1d295262dF9432
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
38 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:17:29.722Z (3d ago)
Category
data

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402.forgemesh.io%2Fmx-record-email-check"