the402 endpoint detail

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x402.forgemesh.io email-deliverability-check

https://x402.forgemesh.io/email-deliverability-check

payable

Checks whether an email address is well-formed and whether its domain actually has working mail servers, returning the parsed domain, the sorted list of mail hosts, and a deliverable flag. Doesn't probe the specific mailbox, only the domain's mail setup. Built for lead-list cleaning and signup-form validation agents. Nothing is stored.

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
42 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:17:29.723Z (3d ago)
Category
other

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