> For the complete documentation index, see [llms.txt](https://tutorial.neoline.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://tutorial.neoline.io/reference/json-rpc-api/wallet_watchasset.md).

# wallet\_watchAsset

Requests that the user track the specified token in NeoLine. Returns a boolean indicating if the token was successfully added. Introduced by [EIP-747](https://eips.ethereum.org/EIPS/eip-747).

## Params

```javascript
interface WatchAssetParameters {
  type: string // The asset's interface, e.g. 'ERC20'
  options: {
    address: string // The hexadecimal Ethereum address of the token contract
    symbol?: string // A ticker symbol or shorthand, up to 5 alphanumerical characters
    decimals?: number // The number of asset decimals
    image?: string // A string url of the token logo
  }
}
```

## Example

### Request

```javascript
await window.NEOLineNeoX.request({
  "method": "wallet_watchAsset",
  "params": {
    "type": "ERC20",
    "options": {
      "address": "0xdAC17F958D2ee523a2206206994597C13D831ec7",
      "symbol": "USDT",
      "decimals": 18,
      "image": "https://cryptologos.cc/logos/tether-usdt-logo.svg?v=032"
    }
  }
});
```

### Result

```
"null"
```


---

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