PayPerByte
POST x402.payperbyte.io/feeds/sanctions-screen
Why an agent can trust this route.
Sonar evidence is advisory. Paid delivery is shown as verified only when paid probes are available; otherwise route estimates use the unpaid handshake as a clearly labeled proxy.
Observed outcomes
Know-Your-Agent counterparty screening — sanctions pillar. Signed OFAC SDN + Consolidated screen on an address or name, pinned to the exact list-state (date + sha256). Screens the counterparty you supply — not the calling agent's identity. Full scope: https://x402.payperbyte.io/feeds
Resource: x402.payperbyte.io/feeds/sanctions-screen
Network: eip155:8453 · Asset: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 · Pay to: 0xffFf4B8Da8C165B556326453446F6940C8AFE0DB
Payment methods: — · Last validation: —
{
"input": {
"body": {
"name": "Lazarus Group"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"_note": "Excerpt of a real answer (live service, 2026-07-01); hash/signature elided, signals/consolidated trimmed. Every answer pins the exact OFAC list version (published date + sha256 + entry count) it was judged against. Screening signal, not legal advice. The EIP-712 receipt — domain chainId 421614 = Arbitrum Sepolia, a frozen signing namespace, not a settlement rail — proves who signed these exact bytes (authenticity + tamper-evidence), not that the screening result is correct. Recompute keccak256(canonical answer bytes) and recover the signer before acting.",
"answer": {
"v": "sanctions-screen/v1",
"query": {
"name": "Lazarus Group",
"chain": null,
"address": null
},
"score": 0,
"reasons": [
"name exactly matches OFAC SDN primary name \"LAZARUS GROUP\": entry #27307 \"LAZARUS GROUP\" [DPRK3] — list published 2026-06-30"
],
"verdict": "BLOCK",
"list_state": {
"sdn": {
"stale": false,
"source": "OFAC SDN (Specially Designated Nationals and Blocked Persons)",
"entry_count": 19129,
"content_sha256": "a04efa5d60104ebd35fc08b6891811120d151bf37801fbd3c01e64380198f099",
"published_date": "2026-06-30"
}
},
"methodology": "ss-v1"
},
"attestation": {
"domain": {
"name": "BYTE Library",
"chainId": 421614,
"version": "1",
"verifyingContract": "0x44729bB148F46d8Db509E47b0453edc271e06e95"
},
"signer": "0x344ECaCDe6566294c31397445c98b62a3EEEA456",
"signature": "0x…",
"payloadHash": "0x…"
}
}
},
"paymentRequirements": [
{
"raw": {
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2"
},
"payTo": "0xffFf4B8Da8C165B556326453446F6940C8AFE0DB",
"amount": "100000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 300
},
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"payTo": "0xffFf4B8Da8C165B556326453446F6940C8AFE0DB",
"scheme": "exact",
"network": "eip155:8453",
"amountAtomic": "100000"
}
]
}Source catalog records are retained separately from live endpoint observations. Sonar score, uptime, and latency are advisory metrics. CDP indexing is not inferred from validation.