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

# isKeystoreJson

```ts theme={null}
function isKeystoreJson(json): boolean
```

Returns true if `json` is a valid JSON Keystore Wallet.

## Parameters

| Parameter | Type     | Description             |
| :-------- | :------- | :---------------------- |
| `json`    | `string` | The JSON data to check. |

## Returns

`boolean`

True if the JSON data is a valid Keystore Wallet.

## Source

[wallet/json-keystore.ts:64](https://github.com/dominant-strategies/quais.js/blob/c1c12d43f9d34c6baad2b0542bd6d0acd6fefcbf/src/wallet/json-keystore.ts#L64)