ZBS Index What actually exists in applied AI, with the source next to it

mcp server

sustainability-auditor

Website carbon footprint auditor. CO2/page, grade A–F, green hosting check, and recommendations.

Description as published by the maintainer. Source

  • version 1.0.0
  • slowing

slowing — Registry entry last updated 2026-04-06.

What this server can do

The server requires authentication before it will list its tools (HTTP 401). We do not hold an account for it, so its functions are unknown to us. The functions below are the last successful declaration, not a fresh answer.

Endpoint status observed on . Source: https://mcp.climateux.net/mcp.

4 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.

audit_website(url)
Audit a website for its digital carbon footprint. Returns sustainability score (A-F), CO2 grams per page view, green hosting status, page weight, and recommendations. Results cached 24h. New audits take ~45-90 seconds. Data source: ClimateUX (climateux.net). Required: url.
get_benchmark_stats
Get aggregate benchmark statistics from ClimateUX's database of 500+ audited websites. Includes average CO2 per page view, average sustainability score, green hosting rate. No API key required. Data source: ClimateUX (climateux.net).
get_domain_history(limit, domain)
Get historical carbon audit data and trend for a domain. Returns audits ordered newest first, plus trend: improving / stable / declining. Data source: ClimateUX (climateux.net). Required: domain.
register_api_key(name, email)
Register for a free ClimateUX API key (10 audits/month, no credit card). Idempotent — same email always returns the same key. Required: email.

Last successful function declaration observed on . Source: https://mcp.climateux.net/mcp. We list what the server declared; we do not call any of these functions.

Signals

These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.

Signal Value What it measures Window Observed Source
Latest published version 1.0.0 Latest version string the maintainer published to the registry. as of fetch Model Context Protocol
Registry record last updated 2026-04-06 When the registry record was last updated by its maintainer. point in time Model Context Protocol
First listed in the MCP Registry 2026-04-06 Date this server was first published to the official MCP Registry. Not a usage or quality measure. point in time Model Context Protocol
mcp tools declared 4 tools Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. as of probe mcp.climateux.net
mcp endpoint status auth_required The server requires authentication before it will list its tools (HTTP 401). We do not hold an account for it, so its functions are unknown to us. as of probe mcp.climateux.net

Where to get it

This record as data

Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.

GET /api/v1/entries/mcp_server.json

Sources

  1. Tools declared by the MCP server at https://mcp.climateux.net/mcp — mcp.climateux.net, observed , trust tier 4.
  2. Official MCP Registry — Model Context Protocol, observed , trust tier 1.