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claudescope

Free command-line tool that opens a browser dashboard on your own machine for searching every Claude Code session and tracking token use, API cost and cache savings. No account and no network calls.

Observability & evalsCommand-line tools
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What it does

ClaudeScope reads the session transcripts that Claude Code already stores on your disk and builds an in-memory view of them. Started with npx, it opens a dashboard at a local address in your browser, where you can search the full text of your prompts, replies and tool calls and open any session to read the whole conversation. Alongside search it shows usage: sessions, messages, tokens, API cost and how much the cache saved, with spend by model, typical session size, an activity heatmap and a daily trend. It can also read session files from Codex, Cursor, Aider, Gemini and Copilot CLI, export to Markdown, CSV or JSON, and print a weekly text report that can be wired to a cron job. Privacy is the main pitch. It makes no network requests, has no dependencies, only reads your files and listens only on the local machine. It needs Node.js 18 or newer.

Capabilities

  • Full-text search across prompts, replies and tool calls, with highlighting
  • Session reader that opens a matching conversation in place
  • Usage panel with tokens, API cost, spend by model and cache savings
  • Activity heatmap, daily trend and a weekly text report
  • Export to Markdown, CSV or JSON
  • Also reads Codex, Cursor, Aider, Gemini and Copilot CLI sessions

When to use it

  • You remember solving a problem in an earlier Claude Code session but not which one
  • You want to see where your tokens and spend go by model or project
  • You want a private, offline way to review your coding-session history