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

# Sparklines

> Learn how to add sparklines to your asset responses

## Overview

Sparklines are a visual representation of price data over a period of time.
They are available for the last 7 days and are returned as a JSON array of price points.
To add them to your response, include the `?sparkline=7d` query parameter.

<Note>
  Sparklines may be added to either the
  [Get Multiple Assets](/api-reference/assets/list) or
  [Get Single Asset](/api-reference/assets/get-single) endpoints.
</Note>

## Example Request

<CodeGroup>
  ```bash cURL theme={null}
  curl -H "x-api-key: YOUR_API_KEY" \
    "https://api.blockworks.com/v1/assets/ethereum?sparkline=7d"
  ```

  ```typescript TypeScript theme={null}
  const res = await fetch(
    'https://api.blockworks.com/v1/assets/ethereum?sparkline=7d',
    { headers: { 'x-api-key': 'YOUR_API_KEY' } }
  )
  const data = await res.json()
  ```

  ```python Python theme={null}
  import requests

  r = requests.get(
    'https://api.blockworks.com/v1/assets/ethereum',
    headers={'x-api-key': 'YOUR_API_KEY'},
    params={'sparkline': '7d'}
  )
  data = r.json()
  ```
</CodeGroup>

## Example Response

```json theme={null}
{
  "id": 2,
  "code": "ETH",
  "title": "Ethereum",
  "slug": "ethereum",
  ... // other asset data
  "sparkline_7d": "[4320.656767290254,4305.000222677031,4378.403865674114,...]"
}
```

### Response Fields

| Field          | Type      | Description                               |
| -------------- | --------- | ----------------------------------------- |
| `sparkline_7d` | Number\[] | Array of price points for the last 7 days |

## See Also

* [List Assets](/api-reference/assets/list)
* [Get Single Asset](/api-reference/assets/get-single)