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

# cast whoami

> Show current authenticated user

# cast whoami

Display information about the currently authenticated user.

## Usage

```bash theme={null}
cast whoami
```

## Output

Shows the user's email address and API key prefix (if an API key is set).

## Example

```bash theme={null}
$ cast whoami
Email: user@example.com
API Key: cast_abc12345...
```

## See Also

* [cast login](/cli/login) — Authenticate with Castari
* [cast apikey](/cli/apikey) — Manage API keys