Sanctions wallet screen — OFAC Digital Currency Address

Exact-match a blockchain address against Digital Currency Address identifiers published in the OFAC SDN XML (the same Treasury list we ingest for name screens). CLEAR or HIT. No third-party chain intel, no clustering, no risk score.

$0.01 per call — paid in USDC on Base over the x402 protocol, settled by Coinbase. No API key, no signup.

Parameters

Call it (any x402 client)

# 1. GET without payment → HTTP 402 with PAYMENT-REQUIRED (price, payTo, scheme "exact")
curl -i "https://agents.nibiashara.biz/shelf/sanctions-wallet-screen?address=0x0000000000000000000000000000000000000000"

# 2. Sign the payment (EIP-3009 transferWithAuthorization, gasless) and retry
#    with the PAYMENT-SIGNATURE header → response body is the delivery.

With the official JS client the whole flow is one wrapped fetch:

import { wrapFetchWithPayment } from "@x402/fetch";       // npm i @x402/fetch @x402/evm
const fetchPaid = wrapFetchWithPayment(fetch, { /* your EVM signer */ });
const res = await fetchPaid("https://agents.nibiashara.biz/shelf/sanctions-wallet-screen?address=0x0000000000000000000000000000000000000000");
const data = await res.json();

Or install the MCP server (https://agents.nibiashara.biz/mcp, registry id biz.nibiashara/shelves) and use the job-named tool for this shelf, or buy_shelf as an escape hatch.

Example response

{
  "query": "0x0000000000000000000000000000000000000000",
  "verdict": "CLEAR",
  "matches": [],
  "match_count": 0,
  "lists_checked": [
    "OFAC SDN XML Digital Currency Address"
  ]
}

Delivers

JSON { query, verdict, matches[], as_of } from OFAC SDN XML Digital Currency Address ids

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