# she-llac/claude-counter

A minimal browser extension that shows token count, cache timer, and usage bars on claude.ai.

Repository: https://github.com/she-llac/claude-counter
Canonical: https://ross.abutalabs.com/products/claude-counter
Language: JavaScript
License: MIT
License Family: permissive
Last push: 2026-03-21T00:21:01+00:00

## Health v2 (maintenance only)
Score: 56/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 73, release rhythm 56, longevity 18
- inputs: {"age_days": 259, "days_push": 166, "days_rel": 214, "gap_med": 43, "n_releases_24m": 2}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2366, forks 262 (observed 2026-08-28T04:06:40.897233+00:00)

## What it is
A minimal browser extension (and userscript) that overlays token counts, cache countdown timers, and session/weekly usage bars on claude.ai. It works by intercepting Claude's API responses and using a vendored o200k_base tokenizer, with all data kept local.

## Use cases
- show token count for my claude.ai conversation
- track how long my claude conversation stays cached
- see accurate claude usage limits with reset countdowns
- monitor context window usage against the 200k limit
- browser extension to display claude rate limit usage bars
- userscript to track claude token usage locally

## When to choose
- you use claude.ai in the browser and want live token and usage visibility
- you need more precise usage fractions than Claude's rounded /usage page
- you want a privacy-friendly tool with no external servers or tracking

## When to avoid
- you use Claude via API or desktop app rather than claude.ai
- you need exact token counts rather than approximations
- you need a tool that works outside Chromium/Firefox browsers

## Facets
- artifact type: plugin
- maturity: active
- function: browser-extension, analytics, developer-tools
- domain: large-language-models, browser-extensions, developer-tools
- platform: browser, browser-extension
- tags: claude, token-counting, usage-tracking, userscript, claude-ai

## Member repositories
- she-llac/claude-counter (main) score 56

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:40.897233+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:35:58.552504+00:00, confidence not recorded.
  - readme: https://github.com/she-llac/claude-counter (fetched 2026-08-28T04:06:40.897233+00:00, sha 58899ee2a69e)
- Data as of 2026-08-30T08:39:29.467469+00:00.