@sperax/tool-wallet-trace

Blockchain forensics: trace fund flows across wallets, detect instant exchange hops via timing correlation, and cluster addresses by ownership heuristics.

Wallet Trace is an agent tool from SperaxOS, packaged headless so you can call it from any agent framework. It ships two things: the manifest — a JSON-Schema function definition a model can call — and the executor that runs the call against the real API.

There is no UI layer and no framework lock-in. It works anywhere TypeScript runs.

Install

npm install @sperax/tool-wallet-trace

Usage

Call it directly

import { walletTraceExecutor } from '@sperax/tool-wallet-trace';

const result = await walletTraceExecutor.invoke('traceAddress', {"address":"<address>","chain":"ethereum"}, {
  messageId: 'msg-1',
});

console.log(result.content); // prose summary written for the model to read
console.log(result.state);   // typed data payload for your own UI

Give it to a model

import Anthropic from '@anthropic-ai/sdk';
import { WalletTraceManifest, walletTraceExecutor } from '@sperax/tool-wallet-trace';

const client = new Anthropic();

const response = await client.messages.create({
  model: 'claude-opus-4-8',
  max_tokens: 1024,
  messages: [{ role: 'user', content: 'Ask something this tool can answer' }],
  tools: WalletTraceManifest.api.map((api) => ({
    name: api.name,
    description: api.description,
    input_schema: api.parameters,
  })),
});

for (const block of response.content) {
  if (block.type !== 'tool_use') continue;
  const result = await walletTraceExecutor.invoke(block.name, block.input, { messageId: response.id });
  console.log(result.content);
}

WalletTraceManifest.api is already in JSON-Schema form, so it maps onto any tool-calling API — Anthropic, OpenAI, the Vercel AI SDK, or an MCP server — without translation.

Every executor returns a BuiltinToolResult — { success, content, state }. content is prose written for the model to read; state is the typed data payload for your own code. Executors never throw: a failed call comes back as { success: false, content: '<reason>' }, so a network blip degrades the answer instead of crashing the agent loop.

Configuration — required

This tool needs a backend you control. It will not work on a bare npm install alone.

The upstream API requires a secret key. That key is deliberately not bundled here — shipping it in an npm package would leak it to every consumer. Instead the executor calls a SperaxOS /webapi/* route, which holds the key server-side and injects it. That route is session-authenticated, so the public deployment at https://chat.sperax.io (the default origin) answers 401 to anonymous callers.

To use this tool you need one of:

• a SperaxOS deployment of your own, or
• any HTTP endpoint that implements the same request shape and supplies the key.

Point the package at it before importing the tool — the URL is resolved once, when the module first loads:

SPERAX_API_BASE_URL=https://my-speraxos.example.com

or in code:

import { configureSperaxApi } from '@sperax/agent-tools-core';

configureSperaxApi({ baseUrl: 'https://my-speraxos.example.com' });

// import the tool only after configuring, so the path resolves against your origin
const { walletTraceExecutor } = await import('@sperax/tool-wallet-trace');

Inside a browser that already serves those routes at its own origin, requests stay same-origin and no configuration is needed.

If you want a tool that runs with zero setup, use one of the standalone tools — those call public APIs directly and need no key, no origin, and no backend.

Tool identifier

sperax-wallet-trace

API reference

traceAddress

Trace where funds moved from a wallet address. Detects direct transfers, exchange hops (instant exchanges like ChangeNow/SimpleSwap), and follows the money up to maxDepth hops using timing correlation and amount matching.

| Parameter | Type | Required | Description | | --- | --- | --- | --- | | address | string | yes | Starting wallet address to trace (0x... for EVM, bc1/1/3 for Bitcoin). | | chain | ethereum | bitcoin | bsc | polygon | arbitrum | base | avalanche | no | Blockchain to trace on. | | maxDepth | integer | no | Maximum hops to follow (1–3). Higher values are slower. | | minAmountUsd | number | no | Ignore transfers below this USD value to filter dust. |

getExchangeHops

Identify exchange hops from a wallet — detect when funds passed through an instant exchange (ChangeNow, SimpleSwap, SideShift, FixedFloat, etc.) and find the exit address on the other side using timing correlation.

| Parameter | Type | Required | Description | | --- | --- | --- | --- | | address | string | yes | Wallet address to scan for exchange activity. | | chain | ethereum | bitcoin | bsc | polygon | arbitrum | base | avalanche | no | Blockchain to scan. | | lookbackDays | integer | no | How many days back to scan for exchange activity. |

getAddressClusters

Find other wallet addresses likely controlled by the same entity as the given address, using common-input heuristics (UTXO co-spending), timing correlation, peeling chains, and thin-relay detection.

| Parameter | Type | Required | Description | | --- | --- | --- | --- | | address | string | yes | Wallet address to cluster. | | chain | ethereum | bitcoin | bsc | polygon | arbitrum | base | avalanche | no | Blockchain to analyze. |

Types

Shared types come from @sperax/agent-tools-core: BuiltinToolManifest, BuiltinToolResult, BuiltinToolContext, and the BaseExecutor class every tool executor extends.

Related

• @sperax/agent-tools-core — the tool contract
• All SperaxOS agent tools — tool-wallet-trace is one of many
• SperaxOS — the agent workspace these tools were built for

License

Apache-2.0