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

# Update Event

Updates an event in Google Calendar.

## Input

| Property          | Type        | Required | Description |
| ----------------- | ----------- | -------- | ----------- |
| calendar\_id      | SHORT\_TEXT | Yes      | -           |
| eventId           | SHORT\_TEXT | Yes      | -           |
| title             | SHORT\_TEXT | No       | -           |
| start\_date\_time | DATE\_TIME  | No       | -           |
| end\_date\_time   | DATE\_TIME  | No       | -           |
| summary           | LONG\_TEXT  | No       | -           |

## Sample Output

```json theme={null}
{}
```