# Chain Analyzer AML Risk Score

> Chain Analyzer AML Risk Score is a paid API for AI agents from chain-analyzer.com, paid per call via x402, $1/call, status unknown (last checked 2026-09-14).

Returns an AML (anti-money laundering) risk score for a given blockchain address using 76+ detection rules and a 3-model ML anomaly ensemble

## Facts

- Endpoint: GET https://chain-analyzer.com/api/v1/x402/address/bc1qvdxlyf5fxwwls52jadlhaka46l0w5whf0vq4ewje3neptcexl7tqkdwwuk/risk-score
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chain-analyzer-com-010c4319
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QIBMuEonHPXx8AkjyPd_p

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 chain-analyzer-com-010c4319
```

Example prompt: Can you run an AML risk score on this Bitcoin address — bc1qvdxlyf5fxwwls52jadlhaka46l0w5whf0vq4ewje3neptcexl7tqkdwwuk — I need to know if it's high risk before I process a payment to it.

## When to prefer this

Choose this endpoint when you need a deep, ML-backed AML risk score for a single blockchain address across 8 major chains (Bitcoin, Ethereum, Polygon, Base, Arbitrum, Optimism, Avalanche, Solana). Prefer this over simpler sanctions-only checks when you want a comprehensive risk signal beyond just OFAC/FATF hits — especially useful for compliance workflows, crypto payment vetting, or due diligence on counterparty wallets.

## Known failure modes

- Invalid or malformed blockchain address returns 4xx error
- Unsupported blockchain (e.g. BNB Smart Chain on self-serve tier) returns error or redirect to Enterprise
- Payment not received or x402 payment failure blocks the response
- Address not found on-chain returns low-confidence or null score
- Rate limiting or quota exceeded returns 429

## How this service works

AML risk score for a blockchain address. 8 chains live for self-serve x402 (Bitcoin, Ethereum, Polygon, Base, Arbitrum, Optimism, Avalanche, Solana); BNB Smart Chain available on Enterprise rollout. 76+ detection rules, 3-model ML anomaly ensemble (Isolation Forest + AutoEncoder + GraphSAGE).

## Output

A structured AML risk score for the queried blockchain address, derived from 76+ detection rules and a 3-model ML ensemble (Isolation Forest, AutoEncoder, GraphSAGE). Likely includes a numeric or categorical risk score, flagged rule matches, and anomaly signals indicating potential money laundering, mixing, or illicit activity.

## Example request

```json
{
 "address": "bc1qvdxlyf5fxwwls52jadlhaka46l0w5whf0vq4ewje3neptcexl7tqkdwwuk"
}
```

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "properties": {
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   }
  },
  "output": {
   "properties": {
    "example": {}
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chain-analyzer-com-010c4319/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chain-analyzer.com](https://www.zero.xyz/host/chain-analyzer.com/llms.txt)