# MistTrack Risk Score API

> MistTrack Risk Score API is a paid API for AI agents from openapi.misttrack.io, paid per call via x402, $1/call, status unknown (last checked 2026-09-15).

Returns AML risk score and labels for a blockchain address or transaction, helping detect suspicious or high-risk crypto activity

## Facts

- Endpoint: GET https://openapi.misttrack.io/x402/risk_score
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/misttrack-risk-score-api-b053912b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WRGvkyABEL33MPV2XADbQ

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 misttrack-risk-score-api-b053912b
```

Example prompt: Can you check the AML risk score for this Ethereum address 0x1234abcd... on MistTrack and tell me if it's linked to any scams, sanctions, or high-risk activity?

## When to prefer this

Choose this endpoint when you need real-time AML risk scoring and entity labeling for blockchain addresses or transactions, especially for compliance screening, fraud detection, or due diligence workflows. It is particularly valuable when you need MistTrack's proprietary threat intelligence database covering exchanges, mixers, darknet markets, and sanctioned entities across multiple blockchains. Prefer this over generic blockchain explorers when risk classification, not just transaction data, is the primary need.

## Known failure modes

- Missing required 'coin' parameter returns validation error
- Invalid or malformed address format returns error or empty result
- Unsupported coin/token symbol returns no data
- Payment failure via x402 protocol blocks the request
- Unknown or very new address may return minimal or no label data
- Rate limiting if too many requests are made in a short period

## How this service works

Blockchain address labels and risk detection API with x402 payment protocol

## Output

An object containing a risk score indicating the threat level of the queried blockchain address or transaction, along with labels identifying the entity type (e.g. exchange, mixer, darknet, sanctioned), risk category flags, and associated metadata about detected illicit activity patterns.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "coin"
 ],
 "properties": {
  "coin": {
   "type": "string",
   "description": "Coin/token symbol"
  },
  "txid": {
   "type": "string",
   "description": "Transaction hash to query"
  },
  "address": {
   "type": "string",
   "description": "Blockchain address to query"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/misttrack-risk-score-api-b053912b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from openapi.misttrack.io](https://www.zero.xyz/host/openapi.misttrack.io/llms.txt)