the402 endpoint detail

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402sentinel.com api compliance

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

payable

Pre-pay COMPLIANCE screen for regulated onchain flows. POST {target:{payto_address, agent_id?}, payment_context?:{amount,asset}} returns compliance_decision pass/flag/block, diligence_tier, obligations and checks: OFAC sanctions (hard block), counterparty due-diligence tier, structuring/smurfing detection (many sub-threshold payments aggregating within 24h, needs agent_id), and the FATF Travel-Rul

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
567 ms
Payment options
2 usable of 2
Last checked
2026-08-10T09:18:09.283Z (1d ago)
Category
finance-crypto

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