the402 endpoint detail

← All endpoints

x402.payperbyte.io feeds address-reputation

https://x402.payperbyte.io/feeds/address-reputation

answers 402

Agentic-payments go/no-go verdict: synchronous signed ALLOW/WARN/BLOCK for (domain, receiving address, amount, chain) BEFORE releasing USDC. ar-v1 ruleset over RDAP/TLS/DNS/Wayback domain signals + on-chain receiving-address signals + curated known-bad blocklist. The verdict carries an embedded EIP-712 PayloadAttestation — recompute keccak256(answer) and recover the signer before acting.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.10
Network
base
Pay to
0xffFf4B8Da8C165B556326453446F6940C8AFE0DB
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
219 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:22:02.930Z (5d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fx402.payperbyte.io%2Ffeeds%2Faddress-reputation"