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GreenCalculus

Serves sourced emission factors over an API and MCP, returning each value with its source cell, data version and public URL.

Developer toolsAPIFor developersFree tier
greencalculus.com ↗GitHubLinkedInCrunchbaseWikidata
At a glanceswept 2026-10-13

≈ 287visits/mo

Emerging · estimate, read 2026-10-13

  • GreenCalculus287
  • #1 Microsoft135M
  • Developer tools median25
For
Developers and carbon accounting teams that need sourced emission factors they can trace for reporting
Price
Price not readpricing page, read 2026-10-13 ↗
Activity
Actively maintainedrelease 2 days ago · site updated yesterday
Company
since 2025per Wikidata
Runs as
API
AlternativesSet it up for my teamIs GreenCalculus yours? Claim the card →
What people do with itread off greencalculus.com on 2026-10-13
  • look up emission factors by name, source and geography
  • calculate electricity emissions from consumption with a cited factor
  • check a factor value against its original source cell
The companyeach fact with its source · read 2026-10-13
  • Founded2025per Wikidata
  • HeadquartersSingaporeper their About page
Your datawhat they publish, each line with its page · read 2026-10-13

“We will never use your emissions data for advertising or AI training.”

privacy policy ↗

These are GreenCalculus's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read 2026-10-13

MCP server details →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Developer toolsby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

All Developer tools tools →

Questions this page answers
  • What is GreenCalculus?

    Serves sourced emission factors over an API and MCP, returning each value with its source cell, data version and public URL. It is listed in the Atlas under Developer tools.

  • Who is GreenCalculus for?

    Developers and carbon accounting teams that need sourced emission factors they can trace for reporting

  • Do people use GreenCalculus?

    Emerging: ≈ 287 visits/mo · estimate, 2026-10 · 82 installs/mo (npm).

  • Is GreenCalculus still maintained?

    Actively maintained: release 2 days ago · site updated yesterday.

  • Does GreenCalculus train AI on your data?

    No, per its privacy policy (2026-10-13): “We will never use your emissions data for advertising or AI training.”

  • Is GreenCalculus safe?

    We do not audit vendors. What GreenCalculus publishes, read 2026-10-13: GDPR, CCPA stated on its privacy policy; on training with your data, “We will never use your emissions data for advertising or AI training.”.

  • How do I cancel GreenCalculus?

    In its own words (terms of service, 2026-10-13): “You may cancel at any time from the self-service link on your Stripe receipt where one is provided, or by telling us through greencalculus.com/contact/ .”

  • Does GreenCalculus give refunds?

    In its own words (terms of service, 2026-10-13): “Except as stated in §6a and §6b, no refunds are issued for partial subscription periods unless required by applicable law.”

  • What are alternatives to GreenCalculus?

    In Developer tools, by use: Devart Software, Verifox AI, Invertase, Zinc, Naptha.AI, MCP-Builder.ai.

Not quite it? Describe the job

beta

Five tools from the Atlas that fit it, each judged against what you wrote.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.