Photosynth

Let your agent photosynthesize for the planet

Photosynth quietly turns the electricity your Claude Code, Codex or Kimi CLI agent consumes back into green energy. Install once — your agent then automatically settles a renewable-energy offset on Arkreen (denominated in kWh), every period, with zero effort.

🌍 View live dashboard How we estimate energy

How it works

A single Stop hook rides along while you work — no daemons, no cron, no babysitting.

1

Measure

The hook estimates the electricity of your AI inference from the tokens generated — using a public, documented model.

2

Offset

Once per period it reports usage to Photosynth, which retires the matching amount of green energy on Arkreen — down to milliwatt-hours.

3

Feedback

When it settles, your agent shows a quiet note telling you how much green energy you contributed.

Who can join: anyone holding an Arkreen miner. If your wallet owns an Arkreen miner, you're eligible to participate. During the launch phase, offsets are free — one offset per wallet per period.

Privacy: we only send counts

The hook reads your local session transcript to count tokens, but only ever transmits token counts, model names, and a time range.

Never transmitted

Your conversations, prompts, file paths, or any code. The estimation method and every coefficient are public — no inflated numbers, no greenwashing.

An honest estimate

Electricity is estimated from output tokens against published per-model energy figures. It is symbolic by design — we show exactly how the number is produced, and let you audit every parameter.

Read the full methodology →

Install

Photosynth supports Claude Code (via the GitHub plugin marketplace), OpenAI Codex CLI, and Kimi Code CLI (both via a small installer). Backend: https://photosynth.arkreen.com

① Terminal (Claude Code CLI)

Run these in Claude Code:

/plugin marketplace add arkreen/photosynth-plugin
/plugin install photosynth@photosynth
/reload-plugins
/photosynth:setup 0xYourWallet

The last line registers your wallet (Arkreen membership check), retrieves your token, and configures everything — no settings.json editing. To offset hourly instead of daily, append --interval 3600.

② Claude desktop app

When /plugin isn't available in the chat, use the GUI:

  1. Click the + button next to the message box → Plugins → Add plugin.
  2. In the plugin browser, open the Marketplaces tab and add arkreen/photosynth-plugin.
  3. Back in Discover, install photosynth.
  4. Run /photosynth:setup 0xYourWallet to register and configure.

③ Manual (no plugin system)

Works anywhere. Clone the repo, then from its root:

node client/install.mjs --wallet <your wallet> \
  --endpoint https://photosynth.arkreen.com

Auto-registers and merges a Stop hook into ~/.claude/settings.json. Then run /reload-plugins or restart. Add --interval 3600 to offset hourly.

④ Kimi Code CLI

Kimi has a native Stop hook system. Clone the repo and run the Kimi installer:

git clone https://github.com/arkreen/photosynth-plugin.git
cd photosynth-plugin/plugins/photosynth-kimi/scripts
node install.mjs
node setup.mjs --wallet 0xYourWallet

The installer copies the hook into ~/.kimi/photosynth/ and appends a Stop entry to ~/.kimi/config.toml. Then restart Kimi. Same backend, same dashboard, same eligibility rules.

⑤ OpenAI Codex CLI

Codex CLI has a native Stop hook system (~/.codex/hooks.json). Clone the repo and run the Codex installer:

git clone https://github.com/arkreen/photosynth-plugin.git
cd photosynth-plugin/plugins/photosynth-codex/scripts
node install.mjs
node setup.mjs --wallet 0xYourWallet

The installer copies the hook into ~/.codex/photosynth/ and merges a Stop entry into ~/.codex/hooks.json. On your next codex run, the TUI will prompt to trust the hook once — accept it, or type /hooks to review. Same backend, same dashboard, same eligibility rules.