# Wallet Safety Checks – OFAC SDN Sanctions Screener

> Wallet Safety Checks – OFAC SDN Sanctions Screener is a paid API for AI agents from onchaincheck.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).

Screens a crypto address against the US Treasury OFAC SDN list and identifies whether it is a wallet or contract on EVM chains or Solana

## Facts

- Endpoint: GET https://onchaincheck.dev/address/screen?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/wallet-safety-checks-ofac-sdn-sanctions-screener-01d1bb7a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Jsy6iw9CXq8shGy5hBzge

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability wallet-safety-checks-ofac-sdn-sanctions-screener-01d1bb7a
```

Example prompt: Can you check whether the Ethereum address 0x098B716B8Aaf21512996dC57EB0615e2383E2f96 is on the OFAC sanctions list, and tell me if it's a wallet or a smart contract?

## When to prefer this

Use this endpoint when you need a fast, low-cost ($0.005 USDC) per-address OFAC SDN sanctions screen for crypto addresses across EVM chains (Ethereum, Base, Arbitrum, Optimism, Polygon) or Solana, combined with on-chain account type classification. Prefer it over general blockchain explorers when you specifically need OFAC SDN compliance data with entity, program, and listing date details in a single call.

## Known failure modes

- Address format invalid or too short (pattern mismatch) — 400 error
- Chain enum value not recognized — 400 error
- Address not found on SDN list returns result: 'not found' with sanctioned: false (not an error)
- List may be a few days old (listAgeDays field indicates staleness)
- Payment not completed or insufficient USDC — 402 Payment Required
- Endpoint only covers addresses explicitly published by OFAC for digital currencies, not all sanctioned entities

## How this service works

Is this address sanctioned? Screens a crypto address against the US Treasury OFAC SDN list's published digital currency addresses (ETH, USDC, USDT, XBT, SOL, TRX and others): the listed entity, programs and listing date on a match, or not found as of the list date. Adds whether it is a wallet (EOA) or contract on Base, Ethereum, Arbitrum, Optimism or Polygon, or a wallet or program-derived address on Solana. Not legal advice.

## Output

Returns whether the address is found on the OFAC SDN list (sanctioned: true/false), matched entity name, OFAC programs, listing date, the currency type matched, plus the account classification (EOA wallet vs contract on EVM chains, or wallet vs program-derived address on Solana). Also includes the date and age of the SDN list copy used.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "chain": {
       "enum": [
        "base",
        "eth",
        "arbitrum",
        "optimism",
        "polygon",
        "solana",
        "other"
       ],
       "type": "string",
       "description": "Chain for the wallet/contract check; defaults to base for 0x addresses, solana for Solana addresses, otherwise other (list check only)"
      },
      "address": {
       "type": "string",
       "pattern": "^[A-Za-z0-9:._-]{14,128}$",
       "description": "Address to screen: 0x (EVM), base58 (Solana), or any other currency's address with chain=other"
      }
     },
     "additionalProperties": false
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": "eth",
  "notes": "Screens only the digital currency addresses that OFAC publishes on its SDN list, from a copy dated listAsOf. It is not legal advice and not a complete sanctions or AML check: it doesn't cover addresse… (240 chars, truncated in this example)",
  "result": "on the OFAC SDN list",
  "account": {
   "kind": "wallet (EOA) or empty address",
   "isContract": false
  },
  "address": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
  "matches": [
   {
    "entity": "Lazarus Group",
    "currency": "ETH",
    "entityId": 27307,
    "programs": [
     "DPRK3"
    ],
    "listedAddress": "0x098B716B8Aaf21512996dC57EB0615e2383E2f96",
    "entityListedOn": "2019-09-13"
   }
  ],
  "listAsOf": "2026-10-21",
  "sanctioned": true,
  "listAgeDays": 2,
  "listAddresses": 1065
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/wallet-safety-checks-ofac-sdn-sanctions-screener-01d1bb7a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from onchaincheck.dev](https://www.zero.xyz/host/onchaincheck.dev/llms.txt)