Which AWS offering is a browser-based, pre-authenticated shell that you can launch directly from the AWS Management Console?

AWS CloudShell is a browser-based, pre-authenticated shell that provides a command-line interface directly from the AWS Management Console. It's ideal for quickly running AWS CLI commands, scripts, and experimenting with AWS services without needing to install tools locally. AWS API refers to the programmatic interfaces for interacting with AWS services, not a shell environment. AWS Lightsail is a simplified cloud platform for small-scale applications, offering virtual private servers, databases, and more, but it's not a shell. AWS Cloud9 is a cloud-based integrated development environment (IDE) that lets you write, run, and debug code, but it's a full IDE, not just a simple shell.