A macOS menu-bar number that tells you whether your Claude subscription will last until the reset — and what to change if it won't.
⏱ 133 — the worst limit window's projected % at its reset, at the speed you've shown so far. 100 = you run out exactly at reset. Green ≤ 80, amber ≤ 100, red above.
Click it:
● Session 44% used 54 at reset
● Week 16% used 133 at reset
● Fable week 12% used 116 at reset
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To fit the week: use Fable about 58% less
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On the API this would have cost $62 today · $410 this week
Every other menu-bar tool shows the percent. Pacer shows the speed: where you land at reset if you keep going like this. 16% used sounds fine — until you notice it's 10% into the week.
One sentence of advice. Computed from your actual model mix: stop/reduce Fable, move X% of Opus work to Sonnet, or do less. "On pace — nothing to change" when you're fine.Per-model weights measured on your own account. Anthropic doesn't publish how Opus/Sonnet/Fable count against the limits. Pacer joins the official usage % with your local transcripts and fits the weights from the data (and whether cache reads are discounted). Until there's enough data it uses API price ratios.API-equivalent cost, so you know what the subscription is worth to you.** Notifications**when the pace crosses 100, when it comes back, and when any window passes 90%.- Tiny. One Node script (no dependencies) + one Swift file. The data is a JSON file other tools can read.
Requires macOS 13+, Node ≥ 18, Xcode Command Line Tools (xcode-select --install
), and a Claude Code login (it reads the same credential /usage
uses).
brew install dkremsa/tap/claude-pacer
brew services start claude-pacer # samples every 10 min, survives reboots
cp -R "$(brew --prefix)/opt/claude-pacer/Claude Pacer.app" /Applications/ && open "/Applications/Claude Pacer.app"
Or from source: git clone https://github.com/dkremsa/claude-pacer.git ~/.claude/pacer && cd ~/.claude/pacer && ./build.sh
— compiles the app into /Applications
and installs a launchd agent that samples every 10 minutes.
Start at login: System Settings → General → Login Items & Extensions → + → pick Claude Pacer from Applications. The sampler already runs at boot; this is for the menu-bar icon.
~/.claude/pacer/status.json
is refreshed every 10 minutes: pace
, level
, advice
, windows[]
(used %, speed, projected, hours left), cost
, fit
. node pacer.mjs status
prints the same.
- Week windows:
projected = used% / fraction of the window elapsed
. - The 5-hour session: rate over the last 45 minutes, projected to the reset (a session is bursty; an average since it opened lags).
- The headline is the worst window.
Works on Pro, Max and Team. Claude only. Nothing leaves your machine.