# MistTrack Transactions Investigation API

> MistTrack Transactions Investigation API is a paid API for AI agents from openapi.misttrack.io, paid per call via x402, $1/call, status unknown (last checked 2026-09-13).

Investigates a blockchain address's transaction history and returns risk labels, counterparty info, and AML signals for a given coin/address pair

## Facts

- Endpoint: GET https://openapi.misttrack.io/x402/transactions_investigation
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/misttrack-transactions-investigation-api-103d9aa8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2T3_uobSUKjQx6GxxdKgO

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 misttrack-transactions-investigation-api-103d9aa8
```

Example prompt: Can you investigate the Ethereum address 0x3f5CE5FBFe3E9af3971dD833D26bA9b5C936f0bE for me using MistTrack? I want to know its risk level and what entities it's been transacting with.

## When to prefer this

Choose this endpoint when you need detailed transaction-level investigation of a specific blockchain address, including counterparty tracing and AML risk labeling. It is especially suited for compliance teams, exchanges, and fraud investigators who need to understand the full risk context of a wallet — not just a simple risk score. Prefer this over simpler address-screening tools when depth of transaction investigation matters, or when you need MistTrack's specific entity labeling database.

## Known failure modes

- Unsupported coin symbol returns an error or empty result
- Invalid or malformed blockchain address returns a validation error
- Address has no transaction history and returns minimal data
- API returns HTTP 402 if x402 payment fails or USDC balance is insufficient
- Rate limiting or quota exceeded if many requests are made rapidly
- Network-specific address formats may be rejected if the coin/address combination is mismatched

## How this service works

Blockchain address labels and risk detection API with x402 payment protocol

## Output

Returns a structured report on the investigated blockchain address including risk labels (e.g. exchange, mixer, darknet, ransomware), associated entity names, transaction risk signals, and AML classification data that help determine whether the address poses a compliance or fraud risk.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "coin",
  "address"
 ],
 "properties": {
  "coin": {
   "type": "string",
   "description": "Coin/token symbol"
  },
  "address": {
   "type": "string",
   "description": "Blockchain address to query"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/misttrack-transactions-investigation-api-103d9aa8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from openapi.misttrack.io](https://www.zero.xyz/host/openapi.misttrack.io/llms.txt)