CarbonAccounting.ai
01 Vendor comparison

Vendor comparison

Climatiq alternatives, Climatiq pricing and Climatiq API alternatives for teams that need a carbon inventory

Climatiq is an emission factor database, a calculation API and a product carbon footprint tool. It is very good at giving software the right factor for an activity. It is not a corporate inventory: nobody imports a year of supplier invoices into it, reviews the lines and sends a CDP response or a customer questionnaire from it. Its published pricing puts API access in the custom Enterprise plan. If what you actually owe is a Scope 1, 2 and 3 number with an evidence trail, a carbon accounting tool that reads the AP export does that job from $2,340 a year.

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01 Amazon Web Services Cloud infrastructure, annual S3 20,240 kg
02 Con Edison Electricity, 82,400 kWh metered S2 31,312 kg
03 Delta Air Lines Team offsite + client flights S3 24,375 kg

This page is for two kinds of reader at a US company. The first is a controller, FP&A lead or sustainability manager who searched for a way to calculate emissions and landed on Climatiq. The second is an engineering or data lead who has been told to "build the carbon numbers on Climatiq" and is now sizing the project. Both want to know the same things: what Climatiq costs, what it does and does not do, and what the alternatives are.

Everything about Climatiq below comes from climatiq.io, including the pricing page, the data page, the about page and the purchased goods and services page, all read on October 22, 2026. Climatiq prices in euros, so we quote euros. Where Climatiq is the better choice, we say so.

What is Climatiq?

Climatiq is a carbon data company founded in 2021 and a certified B Corp since August 2023. Its core asset is a database it describes as "over a million scientifically-vetted emission factors from over a hundred datasets across 300+ regions," all expressed in CO2e on a 100-year global warming potential basis and compliant with the GHG Protocol. Around that database it sells three things: Data Studio for searching and exporting factors, PCF Studio for product carbon footprints, and an API that software teams call to turn an activity or a spend amount into emissions.

Climatiq says tens of thousands of sustainability professionals use its Studio products, APIs and integrations, and it names integrations with Celonis, Salesforce, Oracle, IFS and IntegrityNext. That last point explains the company well. A lot of Climatiq runs inside other people's software. When a procurement suite or an ESG platform shows a carbon figure next to a purchase, there is often a factor API underneath it.

What Climatiq sells, from climatiq.io (read October 22, 2026)
Product What it does Who it is built for
Data Studio Search, filter and export emission factors with metadata such as region, year, calculation method and quality flags Analysts who need the right factor and will do the arithmetic elsewhere
PCF Studio Product carbon footprints, cradle-to-gate or cradle-to-grave, with a Mapping Agent for bills of materials, AI gap-filling and ISO 14067 audit documentation Manufacturers answering a customer RFP for the footprint of a product
API Data access, AI-powered mapping of text to factors, PCF calculations, and freight, travel and energy calculations Developers building carbon features into their own platform
Spend-based calculations Classification codes (ISIC, MCC, NACE, UNSPSC, NAICS) or factors from EXIOBASE, EPA and DEFRA turned into emissions by supplier, category or region Teams screening purchased goods and services from spend
Excel and Google Sheets add-in Factor lookups inside a spreadsheet Enterprise customers; an Excel integration is an upgrade on Data Pro

How much does Climatiq cost?

Climatiq publishes four plans. Starter is free with a non-commercial license, limited factor metadata and five basic product footprints. Data Pro is €3,000 a year for one user with factor export, aimed at Scope 1, 2 and 3 reporting. PCF Pro starts at €4,900 a year for 25 auditable product footprints. Enterprise is custom, and it is the only plan whose pricing card lists API access and commercial data licensing.

Climatiq pricing plans (climatiq.io/pricing, October 22, 2026)
Plan Price Users What the card includes API access
Starter Free Single user Search and browse factors with limited metadata, non-commercial license, 5 basic PCFs, self-service support No
Data Pro €3,000 a year Single user Factor export, Excel integration as an upgrade, EXIOBASE 3.11 as an upgrade No
PCF Pro From €4,900 a year Single user 25 auditable PCFs, branded PCF exports, Mapping Agent for BoMs, ISO 14067 audit documentation, premium datasets as add-ons No
Enterprise Custom (contact sales) Custom All premium datasets, custom calculation and PCF volumes, commercial data licensing, Excel and Google Sheets add-in, SLA Yes

Two details matter for a buyer. The free Starter license is non-commercial, so a company cannot run its reporting on it. And the API, which is what most "build it ourselves" plans assume, is an Enterprise feature with a quoted price. Premium datasets add to that: Climatiq lists ecoinvent, IEA, Carbon Minds and sustamize as add-ons, and CEDA, the spend-based dataset Climatiq says is provided by Watershed with 60,000 spend-based factors across 148 countries and 400 industries, appears on the Enterprise list.

What a US company pays per year for a first corporate inventory, by route

Watershed, median buyer price

$70,031 a year

Vendr marketplace median for Watershed contracts; Watershed publishes no price

Persefoni Advanced, entry tier

$55,000 a year

AWS Marketplace 12-month tier for companies under $250M revenue

Climatiq Enterprise with API, plus your build

Quoted, plus engineering time

API access is on the Enterprise card only; the inventory application, review workflow and reports are yours to build

Our Compliance

$7,740 a year

Activity-based factors, supplier data requests, CSRD, CBAM and ISSB report packs, audit log

Our Ledger

$2,340 a year

One entity, Scope 1, 2 and spend-based Scope 3 screening from the AP export, CSV and XLSX export

Climatiq API alternatives versus buying a finished carbon ledger

The question behind most searches for Climatiq alternatives is build or buy. A factor API answers one question very well: given this activity, which factor applies and how many kilograms of CO2e does it produce. A corporate inventory needs a great deal more around that answer, and the table below is the honest list of what a team building on any factor API ends up owning.

What a corporate carbon inventory needs, and who provides it on each route
Piece of the job Building on a factor API Carbon accounting tool
Getting a year of AP, card and expense lines in Your pipeline from the ERP, cleaned and deduplicated CSV or XLSX import of the AP or ERP export
Deciding the scope and Scope 3 category of each line Your mapping rules, or the API's text mapping plus your review Classification per line with a reason and a confidence score
Choosing and versioning factors The API returns a factor; you store which one and which version Factor and source stored on each line
Reviewing uncertain lines A queue you design and staff Low-confidence review queue with approve and override
Evidence for an auditor Your own link from each tonne to its source record Every posting linked to its source invoice line
Reports for CDP, SB 253 or a customer Your report layer CSV and XLSX export; report packs on Compliance
Next year Maintain the code, the mapping and the factor updates Re-run the import with the mapping kept
Two routes from supplier invoices to a Scope 1 to 3 number

Build on a factor API

  1. 01 Write the pipeline Pull AP, card and expense lines from the ERP into your own database
  2. 02 Call the API per line Map each line to an activity or spend category and request a factor
  3. 03 Build a review step Design how uncertain mappings are caught, checked and overridden
  4. 04 Build the outputs Totals by scope and category, evidence trail and the formats people ask for

CarbonAccounting.ai route

  1. 01 Export AP lines Supplier invoice lines for the reporting year to CSV or Excel
  2. 02 US factors per line EPA USEEIO spend factors and eGRID electricity, stored on each line
  3. 03 Review the unsure lines Each line gets a scope, one of 15 Scope 3 categories, a reason and a confidence score
  4. 04 Evidenced inventory Each tonne linked to its invoice line, ready for CDP, SB 253 or a customer
Sustainability analyst and accountant reviewing flagged invoice lines together on a laptop in a bright office
Whichever route you pick, someone reviews the uncertain lines. The question is whether you build that step or buy it.

Building makes sense when carbon is part of your product. A procurement platform, a freight marketplace or a fintech app that shows emissions to its own customers needs a factor API, and Climatiq is one of the best known. Buying makes sense when carbon is a reporting obligation of your company. A controller who owes a customer questionnaire in six weeks does not need a factor service; they need the AP export classified, reviewed and evidenced, and they need it again next year without an engineering ticket.

Climatiq alternatives by what you are trying to do

Alternatives to Climatiq for US companies (prices as published or labeled buyer data, October 2026)
Option Best for Price Watch out for
EPA GHG Emission Factors Hub and USEEIO Teams that only need US factors and will do the math themselves Free public data No mapping, no review, no evidence trail; the work is all yours
Climatiq Data Pro One analyst who needs a large multi-region factor library €3,000 a year Single user, no API, the inventory still lives in your spreadsheet
Persefoni Larger companies that want a full platform with consulting Pro free (one user, reports as add-ons); Advanced from $55,000 a year on AWS Reports such as CDP are add-ons on Pro; Advanced is priced by revenue band
Watershed Large enterprises with a sustainability team and a budget No public price; Vendr median $70,031 a year Demo-led sales, multi-year contracts are common
Aclymate Small US companies starting with a directional footprint Navigator $45 a month at 1 to 10 employees, billed yearly, scaling with headcount Aclymate itself avoids audit-ready claims
CarbonAccounting.ai Finance teams with an AP export and a dated request Ledger $390 a month, Compliance $1,290 a month, 50% off billed yearly Not a factor API and not a product footprint tool

Where each option fits

01 Carbon is a feature of your product

Climatiq Enterprise

You are building emissions into software you sell, need commercial data licensing and want an API with a large multi-region factor library.

02 A customer asks for a product footprint

Climatiq PCF Pro

The request is the footprint of a specific product under ISO 14067, built from a bill of materials, from €4,900 a year.

03 Your company owes a Scope 1 to 3 number

Ledger or Compliance

Export the AP lines for the year, classify, review and send. Ledger is $2,340 a year; Compliance adds activity factors and supplier requests at $7,740.

When Climatiq is the better choice

Pick Climatiq if your request is about products rather than the company. PCF Studio is built for the manufacturer whose customer wants the footprint of a part or a SKU, with a bill-of-materials mapper and ISO 14067 documentation, and we do not calculate product footprints. Pick Climatiq Enterprise if you are a software company adding carbon to your own platform, because you need commercial rights to the data and an API, and a ledger tool gives you neither. And pick Data Pro if you are a consultant or analyst who mostly needs to look up factors across many countries.

Pick a carbon accounting tool if the request is a company inventory with a date on it. That covers a supplier questionnaire from a large customer, a CDP response, a lender's sustainability-linked loan, or a parent company that falls under California SB 253, which requires companies with more than $1 billion in revenue doing business in California to report Scope 1 and 2 by November 10, 2026 and Scope 3 from 2027.

Questions to settle before you build on any emission factor API

  1. 01 Who owns the mapping? Every AP line needs a scope and a category. Decide who writes the rules, who reviews the misses and who maintains them when the chart of accounts changes.
  2. 02 Which plan includes the API and the data license you need? On Climatiq that is Enterprise. Get the annual price and the calculation volume in writing before you scope the build.
  3. 03 Which factor version produced last year's number? Factor sets update every year. An auditor will ask which version sits behind each tonne, so store it per line.
  4. 04 What does the report layer look like? A customer template, a CDP response and an SB 253 submission each want totals in different shapes, with a methodology note.
  5. 05 What does year two cost? A built tool needs an owner. Compare the engineering time for maintenance with a subscription that re-runs the same import.

Related pages

If you came here from the spend-based side, read spend-based carbon reporting software and Scope 3 emissions software. For the AI classification step that replaces hand-written mapping rules, see AI carbon accounting software. Price comparisons with the larger platforms are on carbon accounting software cost, Watershed pricing and Persefoni pricing, and the product itself starts at carbon accounting software.

01 What are the best Climatiq alternatives?
It depends on the job. For free US factors only, EPA's Emission Factors Hub and USEEIO. For a full enterprise platform, Persefoni or Watershed. For a small company's first estimate, Aclymate. For a finance team that needs a Scope 1 to 3 inventory from its AP export with an evidence trail, a carbon accounting tool such as ours, from $2,340 a year.
02 How much does Climatiq cost?
Climatiq's pricing page lists Starter free with a non-commercial license, Data Pro at €3,000 a year for one user, PCF Pro from €4,900 a year for 25 product footprints, and Enterprise at a custom price. Enterprise is the plan whose card lists API access and commercial data licensing. Prices were read on October 22, 2026.
03 Is the Climatiq API free?
Not for commercial use. The free Starter plan carries a non-commercial license and its card does not list API access. On Climatiq's current pricing page, API access appears on the Enterprise plan, which is priced by quote. Check the plan details with Climatiq before you design a build around the API.
04 Can Climatiq do Scope 1, 2 and 3 reporting?
Climatiq supplies factors and calculations for Scope 1, 2 and 3, including spend-based purchased goods and services. It does not present itself as an inventory application where you import a year of transactions, review them and file a CDP response or SB 253 report, so that layer is built by you or bought from a carbon accounting tool.
05 Does Climatiq calculate product carbon footprints?
Yes. PCF Studio calculates product carbon footprints from a bill of materials, cradle-to-gate or cradle-to-grave, with ISO 14067 audit documentation on PCF Pro. If your customer asks for a product footprint, Climatiq is a good fit. Our product builds company inventories, not product footprints.
06 Should we build our carbon accounting on an emission factor API?
Build if carbon is a feature of software you sell to customers. Buy if carbon is a reporting obligation of your own company. A factor API covers the calculation; the import pipeline, line mapping, review queue, evidence trail, report formats and yearly maintenance are what a carbon accounting tool already includes.

See your own footprint classified in about a minute.

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