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

# updateMachineUser

> Updates the name, description, or avatar of an existing machine user. At least one of `fullName`, `publicName`, `description`, or `avatar` must be provided. Requires the `machineUser:edit` permission.