Configure s3cmd for AI Object Storage

This guide shows you how to configure the s3cmd command-line tool to connect to CoreWeave AI Object Storage so you can manage buckets and objects from your terminal.

s3cmd doesn’t natively support Workload Identity Federation. For production workloads, consider a tool that supports WIF, such as the AWS CLI or rclone.

s3cmd requires your Access Key, default Region, endpoint, and other information to use AI Object Storage. To start the interactive configuration:

s3cmd --configure

When prompted, provide the following values:

Field	Value
Access Key	The Access Key created by the AI Object Storage API.
Secret Key	The Secret Key created by the AI Object Storage API.
Default Region	The CoreWeave Availability Zone.
S3 Endpoint	`cwobject.com` is the primary endpoint. `cwlota.com` is the LOTA endpoint.
DNS-style template	`%(bucket)s.cwobject.com` is the primary template. `%(bucket)s.cwlota.com` is the LOTA template.
Path to GPG program	Defaults to `/usr/bin/gpg`.
Use HTTPS protocol	Boolean value indicating whether to use the HTTPS protocol. Defaults to `True`.
HTTP Proxy server name	Name of the HTTP Proxy server, if applicable.
HTTP Proxy server port	Port number of the HTTP Proxy server, if applicable.

Leave the remaining fields blank or press Enter to accept the default values. Test and save the configuration when prompted. After the configuration is saved, s3cmd is ready to interact with AI Object Storage. By default, s3cmd stores its configuration in $HOME/.s3cfg.

Last modified on May 29, 2026