# LION Verified Company - OFAC SDN Wallet Screener

> LION Verified Company - OFAC SDN Wallet Screener is a paid API for AI agents from lion-x402-bible.lionmaster-operations.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).

Screens a crypto wallet address against the OFAC Specially Designated Nationals (SDN) list and returns a PASS, WARN, or BLOCK compliance verdict instantly.

## Facts

- Endpoint: GET https://lion-x402-bible.lionmaster-operations.workers.dev/api/x402/wallet-screen-json?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lion-verified-company-ofac-sdn-wallet-screener-96e0c0f7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xm3eK1YakxY3UrjnoPJU-

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-verified-company-ofac-sdn-wallet-screener-96e0c0f7
```

Example prompt: Before I send any USDC to 0x3fC91A3afd70395Cd496C647d5a6CC9D4B2b7FAD, can you run an OFAC sanctions screen on that wallet address to make sure it's not blocked?

## When to prefer this

Use this endpoint when you need instant, low-cost ($0.001) OFAC SDN screening for a single EVM wallet address before executing a crypto transaction, onboarding a counterparty, or releasing a payment. Prefer this over manual lookups or full KYC bundles when you need a fast PASS/WARN/BLOCK signal without the overhead of a full compliance suite. Ideal for autonomous agents that need keyless, micropayment-gated compliance checks at transaction time.

## Known failure modes

- Invalid or malformed wallet address format returns an error response
- Address not in EVM 0x format may be rejected
- Network or Cloudflare Worker downtime causes unavailability
- Payment of $0.001 USDC on Base via x402 must succeed or the request is rejected
- Non-EVM addresses (e.g. Bitcoin, Solana) may not be supported

## How this service works

Is this crypto wallet sanctioned? Instant OFAC SDN address screen for AI agents. Returns PASS/WARN/BLOCK. $0.001 Base USDC, keyless x402. Ed25519-attested. Upsell: full counterparty bundle $0.05.

## Output

Returns a JSON object containing a compliance verdict of PASS, WARN, or BLOCK for the submitted EVM wallet address, indicating whether the address appears on the OFAC Specially Designated Nationals list. The response is Ed25519-attested for authenticity. An upgrade path to a full counterparty bundle is available for $0.05.

## 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": "Crypto wallet address to OFAC SDN screen (EVM 0x…)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lion-verified-company-ofac-sdn-wallet-screener-96e0c0f7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from lion-x402-bible.lionmaster-operations.workers.dev](https://www.zero.xyz/host/lion-x402-bible.lionmaster-operations.workers.dev/llms.txt)