HyperD Wallet Behavioral Anomaly Detection

x402

HyperD Wallet Behavioral Anomaly Detection is a paid API for AI agents from api.hyperd.ai, paid per call via x402, $0.1/call, status unknown (last checked 2026-10-13).

Detects behavioral anomalies in an EVM wallet by comparing recent activity against its own 180-day baseline, surfacing tx-volume spikes, dormant-wakeup patterns, new-protocol interactions, and counterparty diversification.

Price / call$0.1

Seller volume →—

Success—

StatusUnknown

Output

Returns a structured anomaly report for the wallet including flags for transaction-volume spikes, dormant-wakeup events, new-protocol interactions, and counterparty diversification shifts, all benchmarked against the wallet's own 180-day behavioral baseline.

Example use cases

Example prompt

“Can you check if wallet 0x1234...abcd on Ethereum has shown any unusual behavior in the last 7 days — like a sudden spike in transactions, waking up after being dormant, or interacting with new protocols it's never touched before?”

Technical details

Endpoint

POSThttps://api.hyperd.ai/api/wallet/anomaly?utm_source=zero.xyz

When to prefer

Use this endpoint when you need self-referential behavioral anomaly detection — comparing a wallet against its own historical baseline rather than against population norms. Ideal for detecting compromised hot wallets, dormant whale re-activation, or strategy shifts on a specific address. Prefer over generic risk/sanctions checks when the question is behavioral change over time rather than static risk classification.

Side effects

Invalid or malformed wallet address returns a 400 error
Unsupported chain value returns a 400 validation error
Wallet with no on-chain history may return empty or insufficient baseline data
Payment not included or insufficient USDC causes a 402 Payment Required response
Network timeout or upstream data provider outage returns a 5xx error
Unrecognized window format returns a 400 error

Input

{
  "input": {
    "type": "http",
    "method": "GET",
    "queryParams": {
      "chain": "ethereum",
      "window": "7d",
      "address": "0x1234567890123456789012345678901234567890"
    }
  }
}

Schema · Request body

Field	Type	Description
inputrequired	object
output	object

Output

{
  "band": "unusual",
  "query": {
    "chain": "ethereum",
    "window": "7d",
    "address": "0x1234567890123456789012345678901234567890",
    "windowSeconds": 604800
  },
  "current": {
    "newProtocols": 0,
    "windowTxCount": 5,
    "preWindowGapDays": 6.7,
    "newCounterparties": 2,
    "newProtocolAddresses": [],
    "windowUniqueCounterparties": 2
  },
  "sources": [
    "Etherscan v2 multichain API (transaction history)"
  ],
  "baseline": {
    "longestGapDays": 20.12,
    "establishedFrom": {
      "days": 165,
      "txCount": 28,
      "earliestTxTimestamp": 1766423267,
      "latestBaselineTimestamp": 1780631903
    },
    "typicalDailyTxCount": 1.47,
    "typicalDailyTxStdDev": 0.94,
    "uniqueCounterparties": 22,
    "contractsTouchedCount": 0
  },
  "anomalies": [
    {
      "type": "tx_volume_spike",
      "metric": {
        "z_score": 3.76,
        "windowTxCount": 5,
        "baselineDailyMean": 1.47
      },
      "severity": "medium",
      "description": "Window tx count is moderately elevated (3.8σ above daily baseline). Worth monitoring."
    }
  ],
  "timestamp": "2026-06-18T04:55:17.266Z",
  "disclaimer": "Anomaly detection is heuristic. Compare-to-self statistics over the wallet's own ~180-day history. High scores warrant investigation, not automatic action. Combine with sanctions check + persona for full risk picture.",
  "anomalyScore": 15,
  "possibleCauses": [],
  "actionRecommendations": [
    "Monitor the wallet over the next few hours for further deviation"
  ]
}

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