the402 endpoint detail

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netintel.dev breach-check password

https://netintel.dev/breach-check/password

answers 402

Check if a password has appeared in known data breaches using the HaveIBeenPwned Pwned Passwords API with k-anonymity — the full password is never transmitted, only a 5-character SHA-1 hash prefix — returns breach count and a risk classification so agents can enforce password policies without storing or exposing credentials.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0xdaDc335482AD545296Fd7b28518A251fFCbEb9Df
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
91 ms
Payment options
2 usable of 2
Last checked
2026-08-15T14:23:14.139Z (18h ago)
Category
identity

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