# ChainAnalyzer Transaction Fund-Flow Tracer

> ChainAnalyzer Transaction Fund-Flow Tracer is a paid API for AI agents from chain-analyzer.com, paid per call via x402, $3/call, status unknown (last checked 2026-09-16).

Traces multi-hop fund flows for a given transaction hash across 8 blockchains using ML-powered anomaly detection, returning a full graph, counterparties, and risk classification.

## Facts

- Endpoint: GET https://chain-analyzer.com/api/v1/x402/tx/:hash/trace
- Price: $3/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chainanalyzer-transaction-fund-flow-tracer-3c6775d5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_L-Fkg9WC1MbhBQG-z4WAa

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 chainanalyzer-transaction-fund-flow-tracer-3c6775d5
```

Example prompt: Can you trace the fund flow for Ethereum transaction hash 0xabc123...def456 — I need to see the full multi-hop graph, all counterparties, and any risk flags or anomalies ChainAnalyzer detects?

## When to prefer this

Use this endpoint when you need to follow money movement from a specific transaction across multiple hops rather than just scoring a wallet address. It is the right choice when you need a graph of fund flows, intermediate counterparties, and per-transaction anomaly detection. Prefer the wallet-level AML score endpoint for address-level risk, and use this endpoint when the starting point is a transaction hash and the goal is tracing or forensics.

## Known failure modes

- Transaction hash not found on the specified chain — returns 404
- Unsupported blockchain (e.g. BNB Smart Chain on self-serve tier) — returns 400 or 402
- Invalid transaction hash format — returns 400 with validation error
- Payment not settled — returns 402 requiring $3 USDC via x402
- Rate limit exceeded — returns 429
- Tracing timeout for very deep or complex graphs — returns 503 or partial result

## How this service works

Transaction fund-flow tracing with ML-powered anomaly detection across 8 live chains (Bitcoin, Ethereum, Polygon, Base, Arbitrum, Optimism, Avalanche, Solana; BNB Smart Chain on Enterprise rollout). Returns multi-hop graph, counterparties, and risk classification.

## Output

Returns a multi-hop fund-flow graph showing how funds moved from the input transaction, a list of counterparty addresses at each hop, ML-generated anomaly detection signals, and an overall risk classification for the transaction.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "properties": {
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   }
  },
  "output": {
   "properties": {
    "example": {}
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chainanalyzer-transaction-fund-flow-tracer-3c6775d5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from chain-analyzer.com](https://www.zero.xyz/host/chain-analyzer.com/llms.txt)