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claude-burn

v1.0.5

Published

Monitor Claude Code token usage, burn rate, and session attribution. Zero dependencies.

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

asheronovaasheronova

Keywords

claudeclaude-codetoken-monitorusageanthropicburn-ratedashboardclideveloper-tools

Readme

claude-burn

See which Claude Code sessions are eating your tokens and how fast.

Zero dependencies. Reads local JSONL files. Nothing leaves your machine.

claude-burn dashboard

Quick start

npx claude-burn

Opens a dashboard at http://localhost:8787 with auto-refresh.

To install globally:

npm install -g claude-burn
claude-burn

Features

  • Active session detection — see which sessions are running right now
  • Token breakdown — input, output, cache read, cache write per session
  • Burn rate — recent (last 3 min) and average (active time) tokens/min
  • Active vs idle time — excludes idle gaps from duration calculations
  • Subagent tracking — token usage per agent with model info on hover
  • Session share bar — proportional token distribution across sessions
  • API cost equivalent — what your usage would cost at API pricing (per model)
  • Timeline chart — cumulative token growth over time
  • Search and sort — filter sessions by title, sort by recent/tokens/burn rate
  • Keyboard shortcuts — R refresh, J/K navigate, / search, 1-7 time filter
  • Auto-refresh — every 5s for 24h and under, manual for longer ranges

Options

claude-burn [options]

--port <n>        Server port (default: 8787)
--data-dir <path> Claude data directory (default: ~/.claude/projects)
--no-open         Don't auto-open browser
--version, -v     Show version
--help, -h        Show help

Keyboard shortcuts

| Key | Action | |-----|--------| | R | Refresh data | | J / K | Navigate sessions down / up | | / | Focus search | | Esc | Clear search | | 1 - 7 | Time filter (1h, 6h, 12h, 24h, 3d, 7d, 30d) |

How it works

Claude Code stores a .jsonl file for every session in ~/.claude/projects/. Each line contains timestamps, token usage, model info, and message content. This tool parses those files and displays the data in a local web dashboard.

Pricing is calculated per model: | Model | Input | Output | Cache read | Cache write | |-------|-------|--------|------------|-------------| | Opus 4.6 | $5/M | $25/M | $0.50/M | $6.25/M | | Sonnet 4.6 | $3/M | $15/M | $0.30/M | $3.75/M | | Haiku 4.5 | $1/M | $5/M | $0.10/M | $1.25/M |

Requirements

  • Node.js 18+
  • Claude Code (session data must exist in ~/.claude/projects/)

Privacy

All data stays on your machine. No analytics, no network calls, no telemetry. The server binds to 127.0.0.1 only.

License

MIT