al-mo.de › mcl

Every Claude Code login.
One command.

Stop logging out and back in. mcl gives each account its own isolated config, history and settings — and runs them side by side.

Get it on GitHub How it works
uv tool install git+https://github.com/mkalmousli/mcl
Terminal showing mcl creating and listing instances

Manage multiple Claude Code accounts without logging out

Truly isolated

Separate login, history and settings per instance via CLAUDE_CONFIG_DIR. Nothing leaks between work and personal.

Side by side

Run two accounts in two terminals at the same time. No logout, no lost context.

Share what you want

--share links your settings, CLAUDE.md, commands, agents and skills while logins stay private.

Always know you are in MCL

Every session shows a bold MCL · name badge in a two-line status bar: model, git branch, cost, context, cache and plan limits. On by default; mcl statusline work off turns it off.

Drop-in

Every claude flag passes straight through. mcl work -c just works.

See everything

mcl ls shows each instance, its account email and when you last used it.

Zero dependencies

Tiny, pure Python, MIT licensed. Linux, macOS and Windows. Installs in seconds with uv or pipx.

How mcl isolates Claude Code logins

mcl maps each instance name to its own config directory and claude session

Frequently asked questions

Can I use two Claude Code accounts at once?

Yes. Each mcl instance sets its own CLAUDE_CONFIG_DIR, so you can run different logins in different terminals simultaneously.

How do I switch Claude Code accounts without logging out?

Create an instance per account with mcl new work, then start it with mcl work. Each one keeps its own login, so there is nothing to switch.

Does mcl share settings between accounts?

Only if you ask. mcl new name --share links settings.json, CLAUDE.md, commands, agents and skills from ~/.claude. Logins and history always stay separate.

How do I know I am inside an mcl session?

The status line starts with a bold MCL badge and the instance name, for example MCL · work. Turn it off with mcl statusline name off.

Where does mcl store my data?

In ~/.mcl/<name> by default. Set MCL_HOME to change it.

Is mcl free?

Yes, fully free and open source under the MIT license.

Which platforms are supported?

Linux, macOS and Windows with Python 3.9 or newer.

Is mcl affiliated with Anthropic?

No. It is an independent open-source tool that launches the official claude CLI.