Privacy Mixer Risk

{
  "band": "low",
  "coverage": {
    "cacheStatus": "miss",
    "chainsFailed": [],
    "chainsScanned": [
      "ethereum",
      "base",
      "polygon",
      "arbitrum",
      "optimism",
      "avalanche",
      "bnb"
    ],
    "depthScanned": 2,
    "mixersScreened": [
      "tornado_cash",
      "railgun",
      "privacy_pools",
      "aztec_connect"
    ]
  },
  "directHits": [],
  "indirectHits": [
    {
      "blockNumber": 18000000,
      "chain": "ethereum",
      "mixer": "railgun",
      "mixerTxHash": "0x...",
      "timestamp": "2026-05-01T00:00:00Z",
      "viaAddress": "0x...",
      "viaTxHash": "0x..."
    }
  ],
  "perMixerScore": {
    "aztec_connect": 0,
    "privacy_pools": 0,
    "railgun": 23,
    "tornado_cash": 0
  },
  "riskScore": 23
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.hyperd.ai/api/privacy/mixer-risk?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&chain=all&depth=2'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://api.hyperd.ai/api/privacy/mixer-risk?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&chain=all&depth=2' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.hyperd.ai%2Fapi%2Fprivacy%2Fmixer-risk
const res = await pay("https://api.hyperd.ai/api/privacy/mixer-risk?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&chain=all&depth=2");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.hyperd.ai/api/privacy/mixer-risk?address=0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045&chain=all&depth=2")
    print(res.status_code, res.text)