Koskamo

GreenCalculus MCP

An MCP server operated by GreenCalculus that enables AI agents to look up sourced greenhouse-gas emission factors and run audit-traced carbon calculations. It provides tools to search the corpus, resolve factors, and calculate emissions for various categories like electricity, freight, and embodied carbon, ensuring all results include exact source references and data versions for reproducibility.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

GreenCalculus MCP logo, by GreenCalculusVendor evidenceLocal stdioSource reviewed; not executedOperated by GreenCalculus
You need:Get a free key (no card) at https://greencalculus.com/developers/welcome/?plan=freeLocal install, if your client cannot reach a remote MCP server: npx -y greencalculus-mcp
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Official MCP Registry namespace is tied to greencalculus.com ·

What you can do with it

  • Look up emission factors with provenance
  • Calculate embodied carbon for construction materials
  • Calculate electricity emissions for grid data
  • Search the emission factor corpus

Source and maintenance

Vendor evidenceRegistry 1.0.4
mcp-registry: com.greencalculus/api@1.0.4Project website

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

greencalculus-mcp 1.0.4

npmnpx
greencalculus-mcp package definition
{
  "version": "1.0.4",
  "transport": "stdio",
  "identifier": "greencalculus-mcp",
  "runtimeHint": "npx",
  "registryType": "npm",
  "environmentVariables": [
    {
      "name": "GREENCALCULUS_API_KEY",
      "description": "GreenCalculus API key — free at greencalculus.com/developers. Without one, search_factors and explain_absence still work; the other ten tools are refused."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "greencalculus-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "greencalculus-mcp@1.0.4"
      ],
      "env": {
        "GREENCALCULUS_API_KEY": "<YOUR_GREENCALCULUS_API_KEY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "greencalculus-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "greencalculus-mcp@1.0.4"
      ],
      "env": {
        "GREENCALCULUS_API_KEY": "<YOUR_GREENCALCULUS_API_KEY>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "greencalculus-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "greencalculus-mcp@1.0.4"
      ],
      "env": {
        "GREENCALCULUS_API_KEY": "<YOUR_GREENCALCULUS_API_KEY>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "greencalculus-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "greencalculus-mcp@1.0.4"
      ],
      "env": {
        "GREENCALCULUS_API_KEY": "<YOUR_GREENCALCULUS_API_KEY>"
      }
    }
  }
}

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