GreenCalculus

Sourced greenhouse-gas emission factors and audit-traced carbon calculations. Every value returns with its exact source cell and data version - reproducible and citable. REST API with bearer-token auth; endpoints for factor lookup, resolution, and GHG activity, embodied, PCAF, electricity, freight, spend-based and business-travel calculations.

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Score Breakdown

Latency 8/10

Consistency 7/10

Error Clarity 5/10

Auth Simplicity 5/10

Token Efficiency 5/10

Parseability 5/10

Documentation 2/10

First-Try Success 0/10

Agent Readiness

x402 Payments

Not supported

Streaming

Sandbox

None

Agent Auth

Unknown

SDKs

None listed

MCP Support

Vendor Profile

Sourced greenhouse-gas emission factors and audit-traced carbon calculations over a REST API. Every value returns with its exact source cell and data version, so a number an agent produces can be traced back to the published row it came from and cited. The corpus carries roughly 17,000 canonical factor keys across fuels, grid electricity, freight, refrigerants, embodied materials, spend-based EEIO and business travel. Where a factor does not exist, the API returns a structured absence record explaining why rather than an empty result or a silent zero - an agent can tell 'we do not publish this' apart from 'your request was ignored'. Base URL is https://api.greencalculus.com/v1; the OpenAPI 3.1 spec is at https://api.greencalculus.com/openapi.json and an MCP surface at https://mcp.greencalculus.com.

Features

every value carries its source id, cell reference and retrieval datestructured absence records instead of empty results or substituted zerosnatural-language resolution from a description to ranked factor keysunit conversion and the arithmetic working returned with each resultGHG Protocol scope and category stated per factorbatch endpoint for up to 100 mixed-methodology calculationsdual location-based and market-based Scope 2 reporting in one call

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