the402 endpoint detail

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402sentinel.com api verify

https://402sentinel.com/api/verify

answers 402

Can my x402 service prove it is trustworthy to buyers? 402Sentinel Verified (opt-in trust badge for sellers): deep-audit a service and, if it passes, issue a signed time-boxed 'verified-organic' credential + list it publicly at /api/verified. POST {payto, resource_url?, claimed_buyers?}. Positive-only - failing audits are returned privately, never published.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.02
Network
base
Pay to
0x1A9Fa76f5b420e85DE147C4419638BEbE64D6dE5
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
627 ms
Payment options
2 usable of 2
Last checked
2026-09-06T01:23:02.061Z (19d ago)
Category
identity

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2F402sentinel.com%2Fapi%2Fverify"