# Onchain Risk Checks – AML Crypto Address Screener

> Onchain Risk Checks – AML Crypto Address Screener is a paid API for AI agents from agent-data.centorprat.workers.dev, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-28).

Screens a crypto address across 13 chains for OFAC sanctions matches and direct on-chain exposure to sanctioned counterparties, returning a risk band as a screening aid.

## Facts

- Endpoint: GET https://agent-data.centorprat.workers.dev/crypto/address-risk?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/onchain-risk-checks-aml-crypto-address-screener-99b56643
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fnDd8tB_aQm424gCXWqfN

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 onchain-risk-checks-aml-crypto-address-screener-99b56643
```

Example prompt: Can you run an AML and OFAC sanctions screen on this Bitcoin address bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh and tell me its risk band?

## When to prefer this

Choose this endpoint when you need a fast, multi-chain AML/OFAC sanctions screen of a specific crypto address before transacting, onboarding a user, or conducting compliance due diligence. It covers 13 chains and provides Bitcoin-specific on-chain exposure analysis to sanctioned counterparties — making it more thorough than simple address blacklist lookups. Prefer it over generic blockchain explorers when you need a structured risk band output suitable for compliance workflows.

## Known failure modes

- Invalid or malformed address returns an error
- Address on an unsupported chain may return no results or an error
- OFAC list may have propagation lag so very recently added addresses might not be flagged immediately
- Rate limiting or payment failure (x402) if USDC payment is not processed
- Network timeout if the underlying chain data is temporarily unavailable

## How this service works

Pay-per-call data and tools for AI agents, $0.002-0.01 per call in USDC via x402 (Base, Polygon or Solana), no account or API key; MAX tiers ($0.05-0.25) run deeper jobs. Agent toolkit: web search, search + read top pages, any page as clean markdown with a prompt-injection check, which-x402-API-to-call recommender, seller check. Data: Google Maps places with contacts, YouTube video data and transcripts, job listings (Indeed, LinkedIn, 13 boards), Google Ads Transparency, TikTok comments, Pinterest, Airbnb, Redfin, AliExpress, app stores, live sports, website and SEO checks, Shopify store tech stacks, and onchain token / address risk checks.

## Output

Returns whether the address matches any OFAC-sanctioned address, and for Bitcoin, whether it has direct on-chain exposure to sanctioned counterparties, along with a risk band (e.g. low/medium/high). Presented as a screening aid, not a definitive legal verdict.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "Any BTC / ETH / EVM / Solana / Tron / XRP / LTC ... address"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": "BTC",
  "signal": "some-risk-indicators",
  "address": "bc1qa5wkgaew2dkv56kfvj49j0av5nml45x9ek9hz6",
  "findings": [
   {
    "code": "large-throughput",
    "severity": "low"
   }
  ],
  "riskBand": "low",
  "riskScore": 8,
  "sanctionedListSize": 1047,
  "sanctionedCounterparties": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/onchain-risk-checks-aml-crypto-address-screener-99b56643/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent-data.centorprat.workers.dev](https://www.zero.xyz/host/agent-data.centorprat.workers.dev/llms.txt)