Sourced greenhouse-gas emission factors and audit-traced carbon calculations, as an MCP server. Every value comes back with its exact source reference and a pinned data version — so an agent hands…
greencalculus-mcp is an MCP project maintained in the jeremiahsay/greencalculus-mcp repository. The maintainer describes its purpose as “Sourced greenhouse-gas emission factors and audit-traced carbon calculations, as an MCP server. Every value comes back with its exact source reference and a pinned data…”. Read the project documentation for the complete scope.
The maintainer’s configuration uses https://mcp.greencalculus.com. Check the project’s account and authentication instructions when adding the endpoint to your client.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| lookup_factor | Fetch one emission factor by key, with its source and version |
| lookup_factors | Fetch many factors by key in one call — a portfolio is one request, not one per factor |
| search_factors | Search the corpus by free text |
| resolve_factor | Map a messy real-world description to the best-matching factor |
| explain_absence | Say why a factor does not exist, rather than returning nothing |
| calculate_activity | Activity → emissions, with unit conversion and GHG Protocol scope |
| calculate_electricity | Location-based and market-based electricity |
| calculate_embodied | Embodied carbon (EN 15978), explicit about missing lifecycle stages |
| calculate_pcaf | PCAF financed emissions, with the audit trail |
| calculate_freight | Freight by mode, distance and load |
| calculate_spend | Spend-based EEIO |
| calculate_business_travel | Business travel across modes |
{
"mcpServers": {
"greencalculus": {
"url": "https://mcp.greencalculus.com",
"headers": {
"Authorization": "YOUR_AUTHORIZATION"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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