the402 endpoint detail

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NetIntel email auth

https://netintel.dev/email-auth

answers 402

Checks SPF, DKIM, and DMARC setup for a domain's email deliverability.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.002
Network
base
Pay to
0xdaDc335482AD545296Fd7b28518A251fFCbEb9Df
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
310 ms
Payment options
2 usable of 2
Last checked
2026-09-06T01:11:49.298Z (21d ago)
Category
infrastructure

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