# ChartDataPoint

Type: object

Schema: [ChartDataPoint](https://sourcey-firefly.pages.dev/api/models/chartdatapoint/index.md)

- `key` (optional)
  Type: string, string
  
  The key is the label of the value, so for example: '2018-01-01' => 13 or 'Groceries' => -123.
  
  Example:
  
  ```json
  "value"
  ```