Tach

A tachometer for your Claude Code spend.

Your live spend rate sits in the menu bar as $/h, with your 5-hour and weekly limit meters right beside it. Click for the full picture.

Download for macOS Free. v0.1.2 · macOS 11+, Apple Silicon & Intel.
Claude usageupdated just now
Weekly limit
96% left
4% used
Resets
6d 16h
Sat 2am
Usage this week63 readings
window startreset
On track to last until the limit resets.
Session limit
86% left
14% used
Resets
2h 38m
12:10pm
Usage this session62 readings
window startreset
On track to last until the limit resets.
Today
$71.13
227.8M tokens
Last hour
$30.66/h
avg $36/h active
Spend ratelast 3h · 5-min rolling
$9.76/hnow · 5-min rate
-3h-2h-1hnow
Efficiencycache hit 97%
~$3.80 likely avoidable today
PourLog · Context bloatedSUB~$3.80
By model today
Opus 5.567%$47.66
Sonnet 5.533%$23.47
Period totals
Today$71
This week$73
This month$792
Input3k
Output1.0M
Cache write6.0M
Cache read220.8M
API-equivalent cost at Anthropic list prices, not your bill. Subscription usage is tracked by the limit meters.

Everything you want to know, one glance up.

Live $/h in the menu bar

Your current spend rate, like a needle on a tach. See when a session starts to rev.

Limit meters

5-hour and weekly usage rings with reset countdowns, so a limit never sneaks up on you.

Spend-rate chart

The last three hours at 5-minute resolution, plus today's spend, tokens and last-hour rate.

Efficiency checks

Cache-hit rate and flags for wasteful patterns: expired caches, bloated context, retry loops.

Models and totals

Breakdown by model, and today, week and month split into input, output, cache write and cache read.

Local and quiet

Reads Claude Code's session data on your Mac. No account, no Dock icon, optional open at login.

Put a tach on it.

Free, signed and notarized, and it updates itself. Needs the claude CLI signed in for limits. Costs shown are API-equivalent estimates at list prices, not your bill.

v0.1.2 · macOS 11+ · Apple Silicon & Intel (universal) · all releases