# Meridian OFAC SDN Sanctions Screen

> Meridian OFAC SDN Sanctions Screen is a paid API for AI agents from workers.miodiollc.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).

Exact-match screens a single digital-currency wallet address against the OFAC Specially Designated Nationals (SDN) list and returns match status, SDN entries, and list freshness metadata.

## Facts

- Endpoint: GET https://workers.miodiollc.com/v1/sanctions/0x0000000000000000000000000000000000000001?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/meridian-ofac-sdn-sanctions-screen-15dbdf11
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_q90RB0nNkvHLy_LldMFNC

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 meridian-ofac-sdn-sanctions-screen-15dbdf11
```

Example prompt: Run an OFAC SDN sanctions screen on the Ethereum address 0xAb5801a7D398351b8bE11C439e05C5B3259aeC9B and tell me whether it's flagged, which SDN entries match if any, and how fresh the list data is.

## When to prefer this

Use this endpoint when you need a fast, cheap ($0.005 USDC), exact-match sanctions screen of a single EVM wallet address against the public OFAC SDN Digital Currency Address list. Prefer it over the full Meridian Deep Passport or Bundle when you only need sanctions data without Aave v3, Lido, or vault risk context. Ideal for pre-trade compliance gates, onboarding checks, or any workflow where OFAC clearance is a required condition before proceeding.

## Known failure modes

- Invalid or malformed address format returns an error response
- Unknown or unsupported chain hint may default to cross-chain exact match or return a warning
- OFAC list temporarily unavailable causes freshness_hours to be null or elevated
- Address with mixed-case checksum issues may fail exact match — normalize address before calling
- Rate limiting or payment failure (x402) if USDC balance is insufficient

## How this service works

Meridian — DeFi risk cards for agents. Aave v3, Lido, vaults, deep passport, OFAC SDN screen, parameter-drift, and transaction simulation via x402 on Base.

## Output

A JSON object containing: the screened address, the chain hint used, a boolean 'match' field indicating SDN presence, an array of matching SDN entries (empty if no match), the OFAC list version and last-updated timestamp, freshness in hours, data sources, a no-match disclaimer note, and any warnings. All data is informational and not a substitute for a compliance program.

## 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"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "Digital-currency address to exact-match against OFAC SDN Digital Currency Address entries"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "chain": {
       "type": "string",
       "description": "Optional OFAC Digital Currency chain hint (ETH, XBT, USDT, TRX, …). ethereum/base map to ETH. Omitted = exact address match across listed chains. Never guessed as risky."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "address",
      "chain",
      "match",
      "sdn_entries",
      "list_version",
      "list_updated_at",
      "freshness_hours",
      "sources",
      "disclaimer"
     ],
     "properties": {
      "card": {
       "type": "string",
       "const": "sanctions_screen"
      },
      "chain": {
       "type": [
        "string",
        "null"
       ]
      },
      "match": {
       "type": "boolean"
      },
      "address": {
       "type": "string"
      },
      "product": {
       "type": "string",
       "const": "mio_dio_defi_risk_passport"
      },
      "sources": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "version": {
       "type": "string"
      },
      "warnings": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "disclaimer": {
       "type": "string"
      },
      "sdn_entries": {
       "type": "array"
      },
      "list_version": {
       "type": [
        "string",
        "null"
       ]
      },
      "no_match_note": {
       "type": "string"
      },
      "freshness_hours": {
       "type": [
        "number",
        "null"
       ]
      },
      "list_updated_at": {
       "type": [
        "string",
        "null"
       ]
      
… (truncated)
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "card": "sanctions_screen",
  "chain": "ETH",
  "match": false,
  "address": "0x0000000000000000000000000000000000000001",
  "product": "mio_dio_defi_risk_passport",
  "sources": [
   "OFAC SDN"
  ],
  "version": "0.7.0",
  "warnings": [],
  "disclaimer": "Informational screening against the public OFAC SDN list only. Not legal or compliance advice and not a substitute for a compliance program.",
  "sdn_entries": [],
  "list_version": "10/14/2026",
  "no_match_note": "No match does not mean the wallet is clean.",
  "freshness_hours": 1.2,
  "list_updated_at": "2026-10-15T06:15:00.000Z"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/meridian-ofac-sdn-sanctions-screen-15dbdf11/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from workers.miodiollc.com](https://www.zero.xyz/host/workers.miodiollc.com/llms.txt)