claude auth logout: Safely Log Out on a Shared PC

If you briefly used Claude Code on a company shared PC or a friend's laptop and then walked away, your account is essentially left open. That means the next person could work under your account. In moments like this, the command that tidies things up in one line is claude auth logout.

Definition (What It Is)

claude auth logout is a command that logs out of the currently logged-in Claude Code account.

Here, auth is short for authentication, meaning "the process of verifying that this person really is the owner of that account." When you log in, the authenticated state is maintained, and this command cuts that state off. In other words, it returns to a state where you have to log in again to use it.

How to Use It (By Difficulty)

Basic — Log out

claude auth logout

Type this one line in the terminal (the black window where you enter commands) and you're done. When you run it, the current account's authentication info is erased and you become logged out. It's a simple command that works right away with no special options or extra input.

Common Pitfalls

• Once you log out, you have to log in again to use it. On your personal PC, there's no need to log out every time. Logging out is mainly for "when it's not your PC."
• Logging out doesn't erase the files or work results you created during that time. The only thing cut is the "account connection."

Real-World Example

When you finish work on a company shared PC or a cafe's public computer, running claude auth logout once before you leave keeps your account from being exposed to others. Bundling work-finish → logout into one set is reassuring.

More Ways to Use It

When working in an environment that isn't your PC, it's good to make "log out after using" a habit. Especially on computers used by many people—like external lecture halls, shared offices, or a colleague's briefly borrowed PC—always include a logout at the work-wrap-up step. It's both the most basic part of account protection and the most easily forgotten, so consciously taking care of it matters.

Wrap-Up

claude auth logout is a command for logging out of your Claude Code account. It's done in one line, and using it when finishing work somewhere that isn't your computer—like a shared PC—safely protects your account. Remember work-finish and logout as one bundle.

Reference: Claude Code v2.1.154 (2026.05)