co2-tracker vs Tern EV-Charging Analytics (dev)
co2-tracker is a plugin bundle for AI coding tools published by gwittebolle. Marketplaces we read that list it: 1 (Claude Code: claude-plugins-community). Tern EV-Charging Analytics (dev) is an MCP server published by useternai. Marketplaces we read that list it: 1 (Official MCP Registry). As of our marketplace pass on 2026-10-25. This pair was picked by a reader, not by our comparison rule, so search engines are asked not to index the page.
Where each is published
| Marketplace |  co2-tracker |  Tern EV-Charging Analytics (dev) |
|---|---|---|
| Claude Code: claude-plugins-community | Listed Version: 1.1.2 Forks (GitHub): 18 Stars (GitHub): 226 Not marked · First seen |
Not listed |
| Official MCP Registry | Not listed | Listed Version: 0.1.0 No figure published Not marked · First seen |
Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.
The facts side by side
| Fact | co2-tracker | Tern EV-Charging Analytics (dev) |
|---|---|---|
| Marketplaces that list it | 1 | 1 |
| Stars (GitHub) (differs) | 226 | No figure on GitHub |
| Forks (GitHub) (differs) | 18 | No figure on GitHub |
| Last release | Not published | Not published |
| Where it runs (differs) | Installs as a plugin bundle | Remote server (tern-mcp-dev-537572042041.europe-west4.run.app/mcp) |
| Transport (differs) | Not stated | Streamable HTTP |
| Tools it declares | Not published | Not published |
| Environment variables it asks for | Not published | Not published |
| Hooks it runs (differs) | 2 | Not published |
| Parts of the bundle (differs) | 5 | Not a bundle |
| Licence (differs) | MIT | Not stated |
| Repository (differs) | github.com/gwittebolle/claude-carbon | Not stated |
| Changes in the last 7 days | 0 | 0 |
| First seen | 2026-10-11 | 2026-10-11 |
| Endpoint at the last check (differs) | no remote endpoint we check | Responded 5 days ago |
Lines where the two differ have a tinted background and bold values. Where the data itself says which value is better (more marketplaces, a larger figure of the same marketplace, a fresher release, a verified mark on a marketplace that lists both), the better one is also marked green with ▲ and the worse one red with ▼. Where it runs, the transport, the tools, the settings, hooks, the bundle's parts, the licence and the week's changes are marked only as different: more or fewer is not better in itself.
What each says it does
co2-tracker
Track the carbon footprint of your Claude Code sessions. Adds a live CO2 estimate to the status line, persists sessions to a local SQLite database, and generates shareable PNG report cards. Based on peer-reviewed emission factors from Jegham et al. 2025.
Tern EV-Charging Analytics (dev)
EV-charging site analytics: utilization, demand, peak saturation and corridor benchmarks.
How to run each
co2-tracker As a Claude Code plugin
/plugin marketplace add anthropics/claude-plugins-community
/plugin install co2-tracker@claude-communityTern EV-Charging Analytics (dev) As a remote MCP server
claude mcp add --transport http usetern-dev https://tern-mcp-dev-537572042041.europe-west4.run.app/mcp --header "X-API-Key: <YOUR_X_API_KEY>"Requires: X-API-Key header
Commands built only from what the marketplaces declare; the full set for every client is on each card.
Only Tern EV-Charging Analytics (dev) has a remote endpoint we check. How we check endpoints
Tools each declares
Neither one's marketplaces publish a list of tools, so there is nothing to compare.
Settings each asks for
Neither one's marketplaces publish the settings it asks for.
What it can do: co2-tracker · What it can do: Tern EV-Charging Analytics (dev) · Compare two other plugins
Data comes from the public marketplace file https://github.com/anthropics/claude-plugins-community/blob/HEAD/.claude-plugin/marketplace.json. Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.