# ARAKEL OFAC Wallet Preflight Screening

> ARAKEL OFAC Wallet Preflight Screening is a paid API for AI agents from proof.arakelproof.space, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).

Screens a crypto wallet address against OFAC sanctions lists before a transfer, returning machine-verifiable evidence of whether the address is observed on the list.

## Facts

- Endpoint: GET https://proof.arakelproof.space/v1/ofac-wallet-preflight?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/arakel-ofac-wallet-preflight-screening-3dfe11ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AbKw7WHC2UCdm07kTyh-C

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-preflight-screening-3dfe11ac
```

Example prompt: Before I send 500 USDC to 0x1234abcd...ef56, run an OFAC sanctions preflight check on that wallet address to make sure it's not flagged — I need the machine-verifiable evidence result.

## When to prefer this

Choose this endpoint when you need machine-verifiable, cryptographically signed evidence of OFAC sanctions status for a specific crypto wallet address — especially in automated compliance workflows where human-readable reports are insufficient and auditable, tamper-evident records are required. Prefer this over manual OFAC list lookups when you need a programmatic, repeatable pre-transfer check at $0.005 per call scale, and when your workflow requires Ed25519-signed evidence bundles for regulatory audit trails.

## Known failure modes

- Missing required 'q' query parameter returns a 400 error
- Invalid wallet address format may return INCONCLUSIVE result
- Payment not completed via x402 USDC returns 402 Payment Required
- OFAC source temporarily unavailable may return INCONCLUSIVE
- Date range parameters in wrong format return validation error
- Rate limiting may occur on repeated rapid calls

## How this service works

$0.001 OFAC destination-wallet preflight for autonomous agents, plus machine-verifiable official-source evidence over x402 USDC on Base.

## Output

A JSON object containing: a result field with one of OBSERVED, NOT_OBSERVED, or INCONCLUSIVE; a schema version identifier (arakel.machine-evidence.v2); source metadata (OFAC); an array of evidence objects; an Ed25519 digital signature for machine verification; and an observed_count integer indicating how many matches were found.

## 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": "Pre-transfer OFAC wallet screening designed for repeated checks before crypto payments."
      },
      "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-preflight-screening-3dfe11ac/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)