Last ship Sep 2026
claude-carbon is an open source Claude Code plugin that tracks the carbon footprint of your sessions: a live CO2 estimate in the status line, computed locally from your token usage, next to the session cost.
@gwittebolleGenerate a shields.io badge of your Claude Code carbon footprint for your READMEs
@gwittebolleGenerate shareable PNG report cards of your Claude Code carbon footprint
@gwittebollePost the development footprint of the current branch as a sticky PR comment
@gwittebolleDisplay CO2 emissions report for Claude Code sessions
@gwittebolleUpdate claude-carbon to the latest version and re-price history (CO2-only)
@gwittebolleAn opinionated library of Flows. Free. Open source. V1.
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Built for Claude Code · Not affiliated with Anthropic
