# SanctionsScreen – OFAC SDN Screening API

> SanctionsScreen – OFAC SDN Screening API is a paid API for AI agents from sanctions.lonestaroracle.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Screens a name, entity, or crypto wallet address against the US Treasury OFAC Specially Designated Nationals (SDN) list and returns a sanctioned yes/no with confidence level and matched entries

## Facts

- Endpoint: GET https://sanctions.lonestaroracle.xyz/screen
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sanctionsscreen-ofac-sdn-screening-api-b7c318a6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_inPBnIIKESmFHknr9ddSK

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 sanctionsscreen-ofac-sdn-screening-api-b7c318a6
```

Example prompt: Before I send this payment, can you check whether 'Viktor Medvedchuk' is on the OFAC sanctions list and tell me the confidence level and which OFAC program flagged them?

## When to prefer this

Choose this endpoint when you need a fast, pay-per-call OFAC SDN compliance check without a subscription, especially within an agentic payment, trading, or onboarding workflow. It is ideal for AI agents that need to gate transactions or customer onboarding on sanctions status without integrating a full compliance platform. Supports names, entities, and crypto wallet addresses, and returns structured match data with confidence levels suitable for automated decision-making.

## Known failure modes

- Missing required query parameter returns an error — at least one of name, entity, or wallet must be provided
- Ambiguous or very common names may return numerous low-confidence possible matches requiring manual review
- Completely non-Latin script names may not match well due to transliteration differences in the SDN list
- The SDN list is refreshed daily so very recent additions may not yet be reflected
- Network or payment authorization failure returns a 402 or 5xx error

## How this service works

OFAC SDN sanctions screen for a name / entity / wallet (?name=)

## Output

Returns a JSON object with a sanctioned boolean, a confidence rating (exact, strong, or possible), the total number of entries screened, every matched SDN record including the SDN name, entity type, OFAC program, entity number, and per-match score, plus the source identified as US Treasury OFAC SDN plus alternate names.

## Request schema (JSON Schema)

```json
{
 "name": "SanctionsScreen",
 "tags": [
  "sanctions",
  "ofac",
  "compliance",
  "aml",
  "screening"
 ],
 "type": "object",
 "version": "1.0.0",
 "category": "compliance",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "q": {
       "type": "string",
       "title": "Q"
      },
      "name": {
       "type": "string",
       "title": "Name"
      },
      "query": {
       "type": "string",
       "title": "Query"
      },
      "entity": {
       "type": "string",
       "title": "Entity"
      },
      "wallet": {
       "type": "string",
       "title": "Wallet"
      }
     }
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "query": "Vladimir Putin",
     "source": "US Treasury OFAC — SDN + alternate names list",
     "matches": [
      {
       "type": "individual",
       "ent_num": "12345",
       "program": "UKRAINE-EO13661",
       "sdn_name": "PUTIN, Vladimir Vladimirovich",
       "match_name": "PUTIN, Vladimir Vladimirovich",
       "match_score": 90
      }
     ],
     "list_size": 17000,
     "confidence": "strong",
     "sanctioned": true,
     "match_count": 1
    }
   }
  }
 },
 "description": "OFAC sanctions screening made agent-callable. One x402 call screens a name, entity, vessel, or crypto wallet against the US Treasury OFAC SDN (Specially Designated Nationals) list plus its alternate-names list, and returns a sanctioned yes/no with a confidence level (exact / strong / possible), every matched entry (SDN name, type, OFAC program, entity number), and the list size screened against. Token-subset matching handles name reordering (e.g. 'Vladimir Putin' vs the SDN 'PUTIN, Vladimir Vladimirovich'). The compliance / AML check that trading, payment, and onboarding agents need before touching a counterparty, served pay-per-call instead of scraped from a portal. $0.05 in USDC on Base via x402. Source: US Treasury OFAC (public domain), refreshed daily. Companion to WalletIntel and DeFiRisk in the risk cluster."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sanctionsscreen-ofac-sdn-screening-api-b7c318a6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sanctions.lonestaroracle.xyz](https://www.zero.xyz/host/sanctions.lonestaroracle.xyz/llms.txt)