Big Bull (@BIGBULLapp) on X

What it claims

clauth is a Rust terminal UI that joins two jobs for Claude Code users with several accounts: switching between accounts and watching each account's 5-hour and 7-day usage windows. The two are linked by a fallback chain, which moves the session to another account before the current one hits its limit and Claude Code blocks. The post frames the problem it removes as manual bookkeeping: when a limit hits mid-task, the user has to find an account with remaining capacity and re-point the tool by hand.

How to use it

The source code is at github.com/uwuclxdy/clauth. The post is the only material fetched, so it gives no install or run command, version or licence. Those have to be read from the repository.

The TUI is the main way to use the tool. The post says it is not a config file that is written once and left alone. It supports Claude Pro, Max, Team and Enterprise OAuth accounts and custom API endpoints. It runs on Linux, macOS and Windows.

The post's author (@BIGBULLapp) says it suits people who already use more than one account.

Limits

With auto-switching on, the tool decides when the session moves to another account. A job that must run on one specific account (for example for billing or data separation) needs the user to watch the chain rather than let it run on its own. The post does not say whether the chain can be pinned, ordered per task or turned off for a session.

The source is a single promotional post on X. It gives no detail on how usage is measured, how close to the limit a switch happens, or what happens to an in-flight request during a switch.