Sanctions Screen

{
  "confidence": 0.9,
  "coverage_limitations": "Covered: OFAC SDN + Consolidated, EU, UK (UN via EU/UK). Not covered: other national lists, export-control lists; no ownership/50% Rule analysis...",
  "disclaimer": "Screening aid only, not legal advice and not a compliance approval...",
  "legal": {
    "privacy": "https://sanctions-screen-production.up.railway.app/privacy",
    "terms": "https://sanctions-screen-production.up.railway.app/terms"
  },
  "match_count": 1,
  "matches": [
    {
      "country_match": false,
      "dob_exact": null,
      "dob_match": null,
      "entry_id": "306",
      "exact_name": true,
      "list": "OFAC_SDN",
      "list_version_date": "2026-10-15",
      "match_strength": "name_only",
      "matched_name": "BANCO NACIONAL DE CUBA",
      "primary_name": "BANCO NACIONAL DE CUBA",
      "programs": [
        "CUBA"
      ],
      "score": 1,
      "source_url": "https://sanctionssearch.ofac.treas.gov/Details.aspx?id=306",
      "type": "entity"
    }
  ],
  "review_required": true,
  "sources": [
    {
      "available": true,
      "dataset_version": "2026-10-15",
      "error": null,
      "fetched_at": "2026-10-16T06:00:00.000Z",
      "id": "OFAC_SDN",
      "last_updated": "2026-10-15",
      "name": "OFAC Specially Designated Nationals and Blocked Persons List (SDN)",
      "stale": false
    }
  ],
  "status": "possible_match",
  "status_reason": "Name similarity to one or more list entries without a confirming identifier; verify identity against the source entry.",
  "use_when": "Use when an agent must screen a customer, supplier or payee (person or company) against official sanctions lists (OFAC SDN + Consolidated, EU, UK; UN designations via EU/UK transposition) before onboarding, contracting or paying them."
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://sanctions-screen-production.up.railway.app/v1/sanctions/screen' \
  -H 'content-type: application/json' \
  --data-raw '{"country":"CU","name":"Banco Nacional de Cuba"}'

# 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://sanctions-screen-production.up.railway.app/v1/sanctions/screen' \
  -H 'content-type: application/json' \
  --data-raw '{"country":"CU","name":"Banco Nacional de Cuba"}' \
  | 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 $0.02 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.02" });
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 $0.02 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fsanctions-screen-production.up.railway.app%2Fv1%2Fsanctions%2Fscreen&method=POST
const res = await pay("https://sanctions-screen-production.up.railway.app/v1/sanctions/screen", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "country": "CU",
    "name": "Banco Nacional de Cuba"
  }),
});
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 $0.02 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.02"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://sanctions-screen-production.up.railway.app/v1/sanctions/screen",
        json={
            "country": "CU",
            "name": "Banco Nacional de Cuba",
        },
    )
    print(res.status_code, res.text)