onebucket CLI handles authentication and credentials. Data operations (upload, download, list) go through any S3 client pointed at your endpoint — see the Quickstart — or through Claude over MCP.
Commands
onebucket login
Sign in via OAuth in your browser. The CLI stores the resulting login locally and uses it for the commands below.
onebucket keys
List your access keys — the key pairs used for S3 (SigV4) access.
onebucket sessions
List or revoke active sessions, including connector (MCP) authorizations.
onebucket logout
Clear the stored login on this machine.
Related
- Access can also be revoked at any time from your OneBucket console.
- MCP connectors authenticate with OAuth 2.1 + PKCE — see How authentication works.