greencalculus/greencalculus-mcp

Overview

GreenCalculus MCP is a JavaScript server that runs over stdio using the Model Context Protocol. It supplies carbon emission factors from sources and produces audit-traced calculations an AI can cite.

Best for

Best for
Developers building AI assistants that need citable carbon footprint data.

Use cases

• Integrate carbon calculations into AI assistants
• Retrieve sourced emission factors for queries
• Generate audit-traced carbon estimates for reports

How to use

Tools exposed

• lookup_factor
• lookup_factors
• search_factors
• resolve_factor
• explain_absence
• calculate_activity
• calculate_electricity
• calculate_embodied
• calculate_pcaf
• calculate_freight
• calculate_spend
• calculate_business_travel
• GREENCALCULUS_API_KEY
• GREENCALCULUS_MCP_URL
• GREENCALCULUS_MCP_TIMEOUT_MS

Example client config

{\n  "mcpServers": {\n    "greencalculus": {\n      "url": "https://mcp.greencalculus.com",\n      "headers": { "Authorization": "Bearer YOUR_KEY" }\n    }\n  }\n}

Notes

GreenCalculus MCP is a JavaScript server that runs over stdio using the Model Context Protocol. It supplies carbon emission factors from sources and produces audit-traced calculations an AI can cite.

0 stars on GitHub. Last updated 2026-09-16. Licensed MIT.

Use cases

• Integrate carbon calculations into AI assistants
• Retrieve sourced emission factors for queries
• Generate audit-traced carbon estimates for reports

Pros

• Sourced emission factors improve trust
• Audit-traced calculations allow verification
• Simple stdio interface for MCP clients

Cons

• No GitHub stars yet, suggesting limited traction
• Maintenance responsibility is unclear with vendor listed as Various
• Only useful within MCP-compatible environments

Indexed from awesome-mcp-servers-punkpeye and enriched against its public facts.