# ARAKEL OFAC Wallet Screening

> ARAKEL OFAC Wallet Screening is a paid API for AI agents from proof.arakelproof.space, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Screens a cryptocurrency wallet address against OFAC sanctions lists and returns cryptographically signed machine evidence of whether the address was observed or not observed.

## Facts

- Endpoint: GET https://proof.arakelproof.space/v1/ofac-wallet-screen
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/arakel-ofac-wallet-screening-43e5e02a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_56iIFFzfVwnTou5J3OyBZ

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 arakel-ofac-wallet-screening-43e5e02a
```

Example prompt: Before I send funds, can you screen the wallet address 0x4e9ce36e442e55ecd9025b9a6e0d88485d628a67 against OFAC sanctions and give me the signed machine evidence result?

## When to prefer this

Choose this endpoint when you need cryptographically signed, machine-verifiable OFAC sanctions evidence for a specific wallet address — not just a pass/fail flag. Particularly valuable when you need NOT_OBSERVED proofs for audit trails, when compliance records require a verifiable signature, or when building automated AML pipelines that must produce tamper-evident compliance artifacts. The $0.005 per-call pricing and free preflight make it cost-effective for high-volume screening.

## Known failure modes

- Invalid or malformed wallet address returns an error before billing
- Address format not recognized for a given chain returns INCONCLUSIVE
- OFAC data source temporarily unavailable returns INCONCLUSIVE with source error
- Rate limit exceeded returns 429
- Payment not included or insufficient returns 402 with payment requirements

## How this service works

Machine-verifiable official-source evidence with free preflight and x402 USDC payments on Base.

## Output

A JSON object conforming to arakel.machine-evidence.v2 schema containing: a result field ('OBSERVED', 'NOT_OBSERVED', or 'INCONCLUSIVE'), the OFAC source identifier, an evidence array with supporting detail, an Ed25519 cryptographic signature over the response, and an observed_count. The signed payload allows downstream verification of the evidence without re-querying.

## 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": [
      "q"
     ],
     "properties": {
      "q": {
       "type": "string",
       "description": "Screen a destination crypto wallet address against official U.S. Treasury OFAC sanctions data before sending funds."
      },
      "to": {
       "type": "string",
       "format": "date-time",
       "description": "Optional UTC end. Defaults to now."
      },
      "from": {
       "type": "string",
       "format": "date-time",
       "description": "Optional UTC start. Defaults to the last 1 days."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": "OBSERVED|NOT_OBSERVED|INCONCLUSIVE",
  "schema": "arakel.machine-evidence.v2",
  "source": {
   "id": "ofac"
  },
  "evidence": [
   {}
  ],
  "signature": {
   "alg": "Ed25519"
  },
  "observed_count": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/arakel-ofac-wallet-screening-43e5e02a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proof.arakelproof.space](https://www.zero.xyz/host/proof.arakelproof.space/llms.txt)