Quick answer
UsageAtlas is free and open source on Windows, macOS, and Linux, with 14 supported providers. Local-history sources need compatible files on the same computer; credit and quota sources need a supported account connection. Tool availability varies by operating system.
On Windows 10 and Windows 11
Same dashboard as the other desktops: tokens, estimated cost, limits, reset times, history. Available stats depend on the tool and the local files on that Windows machine.
Download the Windows build. If OpenCode is the only tool you care about, OpenCode usage on Windows is the narrower page.
Antigravity CLI, Pi / OMP, and Muse Code add local history, with coverage depending on supported session files. Antigravity IDE history is not included. See the new-source guide for details.
Nothing extra to log into
No UsageAtlas account is required for local tracking. Create a free account only if you want to save and restore usage history. Prompts stay off the dashboard. The optional anonymous install count is separate from cloud save and can be switched off.
Questions, answered
Is there an AI usage tracker for Windows?
Yes. The Windows build supports 14 providers, including local histories from compatible files and connected-account credits or limits. Available statistics depend on the provider.
Does 'open usage for Windows' mean this?
If you meant OpenCode usage on Windows, yes, that is supported. The Windows build covers the other tools too.
Linux and macOS?
Those builds are on the same download page.