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The Tandem CLI lets you create and manage tasks, projects, and settings without leaving your terminal. It uses the same AI as the web app — so tandem add has a full conversation with you before saving anything.

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Installation

npm install -g @telltandem/cli
Requires Node.js 18 or later.

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Authentication

tandem login
This opens a browser window to authenticate. Your session is stored locally and stays valid until you log out or revoke the token. 
tandem logout    # clear stored credentials
tandem whoami    # show the current logged-in account

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Self-hosted

If you’re running a self-hosted instance, set the TANDEM_URL environment variable: 
TANDEM_URL=https://your-instance.com tandem login

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Revoking CLI access

CLI tokens can be revoked from Settings → CLI Tokens in the web app. Each device gets its own token — revoking one doesn’t affect others.

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Next steps

Command reference

Full list of every CLI command with examples