CentrailYancy Collective LLC
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The nexus for your AI

See what your AI costs — in dollars, commits, and carbon.

Centrail maps the tokens your AI agents burn to the commits they produce — then to a real environmental footprint.

npx centrail connect
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What is Centrail

The central rail for your AI stack.

One nexus you attach every AI tool to. Copilot brings OpenAI, Claude, and Gemini together. GreenAI is the first module live today — more connect to the same rail over time.

🌱

Claude

Live
🌱

Copilot

Live

Codex

Soon

Gemini

Soon
GreenAI · flagship

Your AI usage, with an environmental outlook.

What you spent, what it produced, and what it cost the planet — side by side.

Me30dModelsProjects
Estimated from 1.2M tokens over the last 30 days
Cost
$16.40
Output
38 commits
Value · $/commit
$0.43
Energy
12 kWh
Water
46 L
CO₂
2.1 kg
How GreenAI works →
How it works

Local-first. Only the numbers leave.

1

Read tokens locally

The CLI reads agent logs on your machine — never source or prompts.

How we parse
2

Map to commits

Usage is matched to the commits it produced, locally.

Git attribution
3

Footprint

Tokens become energy, water & CO₂ next to the dollars.

Methodology
Built to be trusted

Numbers a CFO can use — privately.

Decision-ready

Cost-per-commit, spend by repo/team, efficiency trends, forecastable footprint.

How to read the numbers

Private by design

No API keys, source, or prompts. Only derived counts sync. CLI source — to confirm.

Privacy policy
The bigger picture

Awareness is where it starts.

The footprint of AI is real — and, today, deliberately hard to see. We make yours visible so you can act on it.

“Arguably the most important change will come from speeding up the transition to clean energy, and boosting the amount available so that demand for greener AI does not gobble up the low-carbon electricity also needed to decarbonise other sectors, from transportation to construction.”
The Economist, “The tricky task of calculating AI’s energy use” (2025)

See your AI's real cost & footprint.

Connect in 60 seconds. Free to start.

Get startedRead the docs