# LION OFAC Sanctions Screen

> LION OFAC Sanctions Screen is a paid API for AI agents from lionx402.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).

Screens a blockchain wallet address against the US Treasury OFAC Specially Designated Nationals (SDN) list and returns a sanctioned/not-sanctioned verdict with confidence score and attestation metadata

## Facts

- Endpoint: GET https://lionx402.com/api/x402/sanctions-screen-json
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lion-ofac-sanctions-screen-586199c6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_GFuYkoSqkwu0wEdBBRe00

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 lion-ofac-sanctions-screen-586199c6
```

Example prompt: Before I send funds to 0x8589427373D6D84E98730D7795D8f6f8731FDA16, can you run an OFAC sanctions screen on that wallet address and tell me if it's on the SDN list?

## When to prefer this

Use this endpoint when you need a keyless, pay-per-call OFAC sanctions check on a blockchain wallet address without API key registration. Ideal for AI agents handling crypto transactions that must perform compliance checks before sending funds, onboarding users, or interacting with smart contracts. Prefer this over traditional KYC APIs when you need crypto-native payment (USDC on Base via x402) and Ed25519-attested responses that can be verified offline.

## Known failure modes

- Address not found in snapshot — returns resolved:false with sanctioned:false
- Malformed or non-Ethereum address input — likely 4xx error
- Payment failure via x402 — 402 response requiring USDC payment on Base
- Stale snapshot — as_of date may lag real-time OFAC updates
- No match but address added to SDN after last snapshot — false negative risk

## How this service works

Is this address on the OFAC SDN list? $0.005 detailed sanctions screen for agents (same list as $0.001 wallet-screen, fuller fields + multi-list metadata). Ed25519-attested. Matches: OFAC SDN, AML address screen.

## Output

Returns a JSON object indicating whether the queried wallet address appears on the US Treasury OFAC SDN list, including: the list name, snapshot date, match address, a boolean 'sanctioned' field, a confidence score (0-1), a unique asset_id for attestation, and the total number of sanctioned addresses in the snapshot.

## 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": {
      "address": {
       "type": "string",
       "description": "EVM address to OFAC SDN / sanctions screen"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "asset_id": "LION_OFAC_SANCTIONS_001",
  "resolved": true,
  "sanctioned": false,
  "list_status": "loaded"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lion-ofac-sanctions-screen-586199c6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lionx402.com](https://www.zero.xyz/host/lionx402.com/llms.txt)