# LION x402 Sanctions Screen (JSON)

> LION x402 Sanctions Screen (JSON) is a paid API for AI agents from lion-x402-bible.lionmaster-operations.workers.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-16).

Performs a sanctions screening check on a given asset and returns a JSON result indicating whether it is resolved/cleared.

## Facts

- Endpoint: GET https://lion-x402-bible.lionmaster-operations.workers.dev/api/x402/sanctions-screen-json
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/lion-x402-sanctions-screen-json-8eb06607
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wTRcGMBP2xGd0ADsvLRbP

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-x402-sanctions-screen-json-8eb06607
```

Example prompt: Can you run a sanctions screen on the asset with ID 'LION' and tell me whether it's resolved and clear to use?

## When to prefer this

Choose this endpoint when you need a fast, keyless, pay-per-call sanctions screening result for a blockchain asset and want to pay in USDC on Base via the x402 micropayment protocol. Ideal for autonomous agents that need programmatic compliance checks without managing API keys or subscriptions.

## Known failure modes

- Payment not received or insufficient USDC — returns 402 Payment Required
- Unknown or malformed asset_id — may return resolved: false or an error response
- Network/worker timeout on Cloudflare edge — transient 5xx error
- Rate limiting or quota exceeded — request rejected

## How this service works

Keyless attested data for autonomous agents. USDC on Base via x402. Official @x402/* middleware.

## Output

A JSON object containing the asset_id that was screened and a boolean 'resolved' field indicating whether the asset passed the sanctions check (e.g. {"asset_id":"LION","resolved":true}).

## 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",
  "resolved": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/lion-x402-sanctions-screen-json-8eb06607/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)