greencalculus.com MCP server by greencalculus.com
MCP server · indexed, not reviewed
HostedLocalvendor's own
Not reviewed
No score, grade or rank. This listing is facts from the official MCP registry and our own checks, and it stays out of the rankings until the panel reviews it.
Sourced carbon emission factors + audit-traced calculations an AI can cite.
Facts
- MCP registry
com.greencalculus/api· 1.0.4- Endpoint
https://mcp.greencalculus.com- Packages
npmgreencalculus-mcp stdio- Website
- greencalculus.com/developers
- npm / week
- 46
- Registry entry
- updated 16 Sep 2026
From the official MCP registry, the package registries and our own checks. JSON · Markdown
Why it's listed
- It's published in the registry under greencalculus.com, a namespace the registry only gives to whoever proves they control that domain.
Being indexed says nothing about quality, and nobody can pay for it. Is this yours? Ask for a review.
Tools it lists 12 · about 2,838 tokens of context · checked 23 hours ago
| Tool | What it does | Hint |
|---|---|---|
lookup_factor | Look up a single greenhouse-gas emission factor by its canonical key. Returns the value plus an audit envelope: provenance (publisher, exact source reference, retrieval date, LICENCE and whether it may be redistributed,… | |
search_factors | Find emission factors by section, key prefix, or free text. Returns each match with its key, name, section, VALUE, unit and gas — enough to choose between them or read a few numbers without a second call. For one… | |
lookup_factors | Look up SEVERAL emission factors by key in one call, each with the same audit envelope lookup_factor returns — provenance (publisher, exact source reference, retrieval date, licence, redistribution) and verification.… | |
calculate_activity | Turn activity data into greenhouse-gas emissions: emissions = activity × factor. Give an amount + unit and a factor key; the unit engine converts to the factor basis (MWh→kWh, tonne→kg, gallon→litre, mile→km) and… | |
calculate_embodied | Whole-life embodied carbon for materials, per EN 15978. Give a material key + quantity (+ optional boundary A1-A3 / A1-A4 / A1-A5 / A1-C); it assembles the declared lifecycle modules (A1-A3, B, C1-C4, D) into stages,… | |
calculate_pcaf | Compute PCAF Part A financed emissions for a portfolio. Returns each holding's attribution factor and financed emissions, the portfolio total, the outstanding-weighted data-quality score, and the audit trail (formula +… | |
calculate_electricity | GHG Protocol Scope 2 for purchased electricity, both methods. Always returns location-based (grid-average) emissions; also returns market-based when you supply a contractual supplier_factor (e.g. a green tariff / REC =… | |
calculate_freight | Freight & logistics emissions (Scope 3 Cat 4 & 9), GLEC framework. THE FACTOR'S DENOMINATOR PICKS THE METHOD — check the factor's unit before choosing the input. Per tonne-km: emissions = tonnes × km × factor, send… | |
calculate_spend | Spend-based (EEIO) Scope 3 screening: emissions = spend × economic-intensity factor. Spend must be in the factor's own currency/year (no FX). Find sector factors via search_factors (section "spend_based"), e.g.… | |
calculate_business_travel | Business travel emissions (Scope 3 Cat 6), distance method: emissions = km × passengers × factor. Air factors come in with_rf / without_rf (radiative forcing) variants. Find factors via search_factors (section… | |
resolve_factor | Find the best emission-factor key(s) for a plain-language description — the hardest step is picking the right key out of ~16,000. Returns ranked matches, each carrying the key, value, unit and a confidence score; feed… | |
explain_absence | Ask why a factor is NOT in the corpus. The reasoned counterpart to coverage: where a country reports zero rows for an inventory family, this says whether that is the world's limit or our backlog. Five classifications:… |
What https://mcp.greencalculus.com answered to tools/list, asked without credentials. answered without the initialize handshake. The token figure is the size of the list as sent, divided by four; a model sees about that much before it calls anything. Full definitions, input schemas included, are in the listing's JSON under mcpTools.
How its tools read to an agent 0 errors · 21 warnings · 1 note
- warnTC11calculate_pcaf1 parameter without a description: asset_class
- warnTC13calculate_activityactivity (object with no properties)
- warnTC13calculate_business_traveldistance (object with no properties)
- warnTC13calculate_electricityconsumption (object with no properties), supplier_factor (object with no properties)
- warnTC13calculate_embodiedmaterials[] (object with no properties)
- warnTC13calculate_freightdistance (object with no properties), mass (object with no properties), teu (object with no properties)
- warnTC13calculate_pcafholdings[] (object with no properties)
- warnTC13calculate_spendspend (object with no properties)
- warnTC14explain_absenceallowed values are in the description, not an enum: classification
- warnTC16calculate_activityno readOnlyHint or destructiveHint
- warnTC16calculate_business_travelno readOnlyHint or destructiveHint
- warnTC16calculate_electricityno readOnlyHint or destructiveHint
- warnTC16calculate_embodiedno readOnlyHint or destructiveHint
- warnTC16calculate_freightno readOnlyHint or destructiveHint
- warnTC16calculate_pcafno readOnlyHint or destructiveHint
- warnTC16calculate_spendno readOnlyHint or destructiveHint
- warnTC16explain_absenceno readOnlyHint or destructiveHint
- warnTC16lookup_factorno readOnlyHint or destructiveHint
- warnTC16lookup_factorsno readOnlyHint or destructiveHint
- warnTC16resolve_factorno readOnlyHint or destructiveHint
- warnTC16search_factorsno readOnlyHint or destructiveHint
- noteTC24server12 of 12 tools have no outputSchema
The checks from /check and anchor check, run each day on the list above: about 2,838 tokens of definitions. Not part of the score yet. Check your own server.