the402 endpoint detail

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api.qonoro.ai email validate

https://api.qonoro.ai/v1/email/validate

payable

Validates email deliverability: syntax check, MX record lookup, and SMTP server reachability. Returns risk score and quality rating. Deterministic, sub-second. x402-native.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0x40B62aa49F4a929760fb2DD0Fcb0642f0AA872eb
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
413 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:08:56.292Z (1d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.qonoro.ai%2Fv1%2Femail%2Fvalidate"