# HyperD Mixer-Adjacency Risk Screener

> HyperD Mixer-Adjacency Risk Screener is a paid API for AI agents from api.hyperd.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-11).

Returns a 0-100 risk score with structured evidence for an EVM address's proximity to major privacy mixers (Tornado Cash, Railgun, Privacy Pools, Aztec Connect) across 7 chains within 2 graph hops.

## Facts

- Endpoint: GET https://api.hyperd.ai/api/privacy/mixer-risk?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hyperd-mixer-adjacency-risk-screener-81762175
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Hd4WN7jQP6RRXD5fWjUv_

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 hyperd-mixer-adjacency-risk-screener-81762175
```

Example prompt: Can you run a mixer-adjacency risk check on 0xAbCd...1234 across all 7 EVM chains using full 2-hop graph traversal — I need the 0-100 risk score and any evidence of Tornado Cash or Railgun interactions for compliance review?

## When to prefer this

Use this endpoint when you need defensible, multi-chain mixer-adjacency screening for a single EVM address without an enterprise contract — especially when you need structured evidence (not just a binary flag) of Tornado Cash, Railgun, Privacy Pools, or Aztec Connect exposure within 2 graph hops. Prefer over generic wallet risk endpoints when privacy protocol proximity is the specific compliance concern.

## Known failure modes

- Invalid or non-0x address format returns a 400 error
- Address with no on-chain history may return a risk score of 0 with empty evidence
- Unsupported chain value returns validation error
- Graph depth value outside [1,2] is rejected
- Rate limiting or payment failure returns 402
- Timeout on deep graph traversal for highly active wallets

## How this service works

Mixer-adjacency risk screening. Returns 0-100 risk score + structured evidence for an EVM address's interactions with major privacy protocols (Tornado Cash, Railgun, Privacy Pools, Aztec Connect) within 2 graph hops across 7 EVM chains. Defensible compliance-screening signal for DeFi protocols and AI agents — alternative to enterprise contracts. Information service, not transaction facilitation.

## Output

A 0-100 risk score indicating the wallet's proximity to major privacy protocols (Tornado Cash, Railgun, Privacy Pools, Aztec Connect), along with structured evidence including which protocols were touched, at what graph hop distance, and on which of the 7 supported EVM chains (Base, Ethereum, Polygon, Arbitrum, Optimism, Avalanche, BNB).

## 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": [
      "address"
     ],
     "properties": {
      "chain": {
       "enum": [
        "all",
        "base",
        "ethereum",
        "polygon",
        "arbitrum",
        "optimism",
        "avalanche",
        "bnb"
       ],
       "type": "string",
       "description": "Filter response to a single chain, or 'all' (default) for full cross-chain view"
      },
      "depth": {
       "enum": [
        1,
        2
       ],
       "type": "integer",
       "description": "Graph traversal depth: 1=direct only, 2=direct+1-hop indirect (default 2)"
      },
      "address": {
       "type": "string",
       "description": "0x EVM wallet address to screen"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hyperd-mixer-adjacency-risk-screener-81762175/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hyperd.ai](https://www.zero.xyz/host/api.hyperd.ai/llms.txt)