UseReserve – a free macOS menu bar app for tracking Claude and Codex usage

UseReserve is a free macOS menu bar app for tracking Claude and Codex usage. It was listed on Hacker News under the Claude/Codex/Fable thread with the product site at usereserve.app and the discussion at item id 49012369. At listing time the post had 2 points and 0 comments.

UseReserve lives in the macOS menu bar rather than as a full window app. Its stated job is usage tracking for two AI coding products: Claude and Codex. The free price removes a paywall for developers who already pay for those tools and only need a local readout of how much they are consuming.

For engineers and builders who run Claude and Codex side by side, usage is easy to lose track of across chats, sessions, and billing periods. A always-visible menu bar meter keeps that signal next to the work instead of buried in each vendor’s web dashboard. That matters when you are deciding which model to call, when to stop a long session, or whether a spike came from one tool or both.

Claude and Codex sit in the same daily workflow for many developers, but each has its own account surface and usage story. A single free tracker that covers both is a narrow product bet: not another chat client, just a cross-product meter on the machine where the work happens. On HN the launch is still early (2 points, no comments), so reception and feature depth are still unproven in public discussion.

If you already use Claude or Codex on a Mac, the practical next step is to open usereserve.app, install the free menu bar app, and check whether its usage view matches what you see in each vendor’s own billing or usage pages. Watch whether the HN thread picks up real install feedback and whether the app stays focused on Claude and Codex only or expands the set of tracked tools.