How do I install Api?

Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.

Does Api need an API key?

The publisher lists these environment variables: GREENCALCULUS_API_KEY.

Api

by com.greencalculus

Sourced carbon emission factors + audit-traced calculations an AI can cite.

Power your agent

Add this server

The publisher's own URL. Not a PlugMCP endpoint.

Server URL

https://mcp.greencalculus.com

Credentials from the publisher

GREENCALCULUS_API_KEY — GreenCalculus API key — free at greencalculus.com/developers. Without one, search_factors and explain_absence still work; the other ten tools are refused.

Provider

Add in Claude

Claude opens with the name and URL filled in. You still confirm it there.

Claude Code

claude mcp add --transport http com.greencalculus-api https://mcp.greencalculus.com

Run in a terminal.

Claude Desktop

{
  "mcpServers": {
    "com.greencalculus-api": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://mcp.greencalculus.com"
      ]
    }
  }
}

claude_desktop_config.json

Step-by-step: add this in Claude

Remote URL or a command on your machine? How the two installs differ

Run on PlugMCP

Host a copy with our keys and logs.

A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.

Launch

Related MCP

Related skills

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Questions

How do I install Api?: Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
Does Api need an API key?: The publisher lists these environment variables: GREENCALCULUS_API_KEY.
What transport does Api use?: Api is reached over HTTP.
When was Api last checked?: Last checked 2026-10-16. Sourced carbon emission factors + audit-traced calculations an AI can cite.

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Api