the402 endpoint detail

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ai-data-marketplace-1042299154756.us-central1.run.app v1 pwned_check

https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/pwned_check

answers 402

Check whether a password hash appears in the Have I Been Pwned breach corpus using k-anonymity: the caller sends only the first five hex characters of a SHA-1 hash, so no password or full hash ever leaves the caller. Returns the matching hash range, or a breach count when an optional suffix is supplied.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0x8647F7D7a1368a467Ad1FF757fBc2e7167973558
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
37 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:26:30.240Z (1h ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fai-data-marketplace-1042299154756.us-central1.run.app%2Fapi%2Fv1%2Fpwned_check"