> ## Documentation Index
> Fetch the complete documentation index at: https://docs.gu1.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Address label

> Lookup AML labels and categories for a crypto wallet address.

## Endpoint

```
GET https://api.gu1.ai/api/aml-crypto/address-label?protocol=eth&address=0x...
```

## Query parameters

| Param      | Required | Description      |
| ---------- | -------- | ---------------- |
| `protocol` | Yes      | Address protocol |
| `address`  | Yes      | Wallet address   |

Persists a history snapshot when the response contains useful data and returns optional `checkId`.