Payguard Batch

{
  "any_sanctioned": true,
  "count": 2,
  "disclaimer": "Informational screening against the public OFAC SDN list (digital currency address identifiers only). Not legal advice. A clear result does not mean an address or its owner is unsanctioned or low-risk; OFAC sanctions also apply to persons and property not listed by address.",
  "engine": "payguard-2026-10-21",
  "list_age_days": 0,
  "list_updated_at": "2026-10-21",
  "results": [
    {
      "address": "0x098b716b8aaf21512996dc57eb0615e2383e2f96",
      "chain": {
        "candidates": [
          "ethereum",
          "base",
          "arbitrum",
          "optimism",
          "polygon",
          "bnb-smart-chain",
          "avalanche-c",
          "ethereum-classic"
        ],
        "checksum": "eip55",
        "checksum_address": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
        "checksum_valid": true,
        "format": "evm-hex20",
        "guess": "evm"
      },
      "input": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
      "match_count": 1,
      "matches": [
        {
          "entity": "LAZARUS GROUP",
          "entity_type": "Entity",
          "list_date": "2019-09-13",
          "listed_as": "Digital Currency Address - ETH",
          "listed_currency": "ETH",
          "programs": [
            "DPRK3"
          ],
          "sdn_uid": 27307
        }
      ],
      "sanctioned": true
    },
    {
      "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
      "chain": {
        "candidates": [
          "ethereum",
          "base",
          "arbitrum",
          "optimism",
          "polygon",
          "bnb-smart-chain",
          "avalanche-c",
          "ethereum-classic"
        ],
        "checksum": "eip55",
        "checksum_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "checksum_valid": true,
        "format": "evm-hex20",
        "guess": "evm"
      },
      "input": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "match_count": 0,
      "matches": [],
      "sanctioned": false
    }
  ],
  "sanctioned_count": 1,
  "sdn_address_count": 1050,
  "source": "US Treasury OFAC Specially Designated Nationals (SDN) list",
  "source_url": "https://sanctionslistservice.ofac.treas.gov/api/PublicationPreview/exports/SDN.XML"
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.youraitools.co/payguard/v1/batch' \
  -H 'content-type: application/json' \
  --data-raw '{"addresses":["0x098B716B8Aaf21512996dC57EB0615e2383E2f96","0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"]}'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - -X POST 'https://api.youraitools.co/payguard/v1/batch' \
  -H 'content-type: application/json' \
  --data-raw '{"addresses":["0x098B716B8Aaf21512996dC57EB0615e2383E2f96","0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"]}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.youraitools.co%2Fpayguard%2Fv1%2Fbatch&method=POST
const res = await pay("https://api.youraitools.co/payguard/v1/batch", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "addresses": [
      "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
      "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
    ]
  }),
});
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.youraitools.co/payguard/v1/batch",
        json={
            "addresses": [
                "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
                "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            ],
        },
    )
    print(res.status_code, res.text)