AlphaMoatによると、2026-09時点でChrome拡張機能Claude Usage Trackerのユーザー数は50(前月比 -9.1%)で、9,324件のAIブラウザ拡張機能中5,450位、汎用AIでは2,418件中1,361位です。
Real-time usage tracking, trend analytics across Claude Chat, Projects, Cowork, and Design, smart alerts before you hit your limits. A Chrome extension that tracks your token usage across Claude Chat, Projects, Cowork, and Design in real time — with desktop alerts before you run low and full trend analytics.
> **Independent open-source project. Not affiliated with Anthropic.**
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## Features
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## How it works
The extension intercepts `fetch` calls on `claude.ai` and reads the `input_tokens` / `output_tokens` fields from Anthropic's streaming SSE responses. Message content is never read or stored. Since Anthropic does not expose a public quota API, usage is tracked **relative to your own rolling average** rather than against an absolute limit.
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+ 比較データ月:2026-09 · ユーザー数と評価はChromeウェブストアの公開データを月単位で集計したものです。詳しくはデータの方法論をご覧ください。