We use analytics to improve the site

We use analytics to understand what's working and where things can be clearer, so we can make the site easier to use for everyone.

Privacy & cookies

EcoHedge Infrastructure

The compliance-aligned emissions engine for regulated software.

Two APIs, shared infrastructure. Use the Factor API for emission factor lookup and calculation, or the Categorisation API to classify raw financial transactions into auditable emissions automatically.

Get API key View documentation

277k+

emissions factors

source databases

261

countries covered

2 APIs

factors + categorisation

Every calculation returns source, licence, methodology and timestamp metadata.

Why teams choose EcoHedge Infrastructure

Built for regulated environments

Designed for financial software, accounting platforms, procurement systems and enterprise tools that require audit transparency.

Defensible numbers

Every response includes source database, year, licence, attribution and reproducible formula context.

Keep your UX

Run carbon calculations inside your own interface. No tool switching. No white labelling required.

Ship faster

Production-ready endpoints for search, lookup, calculate and batch processing. No factor wrangling.

Not just an emissions API

Most APIs return a number.
EcoHedge Infrastructure returns audit context.

We align factor metadata with real-world reporting frameworks such as SECR and UK Sustainability Reporting Standards. That means your outputs are structured for compliance from day one.

Source provenance on every factor

Licence and attribution visibility

Version and year traceability

Categorisation API

From raw transactions to categorised emissions

Send financial transactions — supplier name, description, amount — and receive structured emission results with category classification, confidence scoring, and review flags. No manual mapping required.

Operation modes

Auto

mode: "auto"

Classify and calculate emissions in a single call. Best for production pipelines where you want results immediately.

Suggest

mode: "suggest"

Returns ranked category suggestions with confidence scores. Ideal when a human reviews before committing.

Classify only

mode: "classify_only"

Returns the matched category and metadata without running the emissions calculation. Useful for enrichment workflows.

Example request

curl -X POST https://app.ecohedge.ai/api/v2/categorize \
  -H "X-API-Key: YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "transactions": [
      {
        "id": "txn_001",
        "supplier": "ABC Office Supplies",
        "description": "A4 paper and toner cartridges",
        "amount": 284.50,
        "currency": "GBP"
      }
    ],
    "mode": "auto"
  }'

Example response

{
  "results": [
    {
      "transaction_id": "txn_001",
      "category": "Office supplies and stationery",
      "confidence": 0.94,
      "review_flag": false,
      "emissions": {
        "co2e_kg": 112.38,
        "factor_id": "ef_desnz_2024_office_supplies",
        "source": "UK DESNZ 2024",
        "methodology": "spend-based"
      }
    }
  ],
  "meta": {
    "transactions_processed": 1,
    "flagged_for_review": 0
  }
}

Transactions with a confidence score below your configured threshold are automatically flagged for human review.

Quickstart

From zero to first calculation in minutes

Four steps to your first audit-ready output.

Register for a key

Search factors

curl "https://app.ecohedge.ai/api/v1/public/factors/search?q=electricity&country=GB&limit=5" \
  -H "X-API-Key: YOUR_API_KEY"

Calculate with API key

curl -X POST https://app.ecohedge.ai/api/v1/public/calculate \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{
    "factor_id": "exiobase_gb_computer_programming_consultancy_and_related_activities",
    "amount": 10000
  }'

Batch calculate

curl -X POST https://app.ecohedge.ai/api/v1/public/calculate/batch \
  -H "Content-Type: application/json" \
  -H "X-API-Key: YOUR_API_KEY" \
  -d '{
    "calculations": [
      { "factor_id": "exiobase_gb_computer_programming_consultancy_and_related_activities", "amount": 10000 },
      { "factor_id": "exiobase_gb_legal_and_accounting_activities", "amount": 5000 }
    ]
  }'

Every response is audit-ready

Calculation outputs include input context, factor details and audit metadata so your downstream reporting remains transparent and reproducible.

{
  "success": true,
  "data": {
    "input": {
      "factor_id": "exiobase_gb_computer_programming_consultancy_and_related_activities",
      "amount": 10000,
      "unit": "unit"
    },
    "result": {
      "kgCO2e": 1234.5678,
      "tCO2e": 1.2346
    },
    "factor": {
      "factorId": "exiobase_gb_computer_programming_consultancy_and_related_activities",
      "name": "Computer programming, consultancy and related activities",
      "unit": "kgCO2e/gbp"
    },
    "audit": {
      "factorSource": "EXIOBASE",
      "factorYear": 2024,
      "licence": "CC-BY-SA 4.0",
      "timestamp": "2026-01-01T12:00:00.000Z"
    }
  }
}

Endpoint Reference

All endpoints use base URL https://app.ecohedge.ai

Endpoint	Method	Auth	Purpose
Factor API
/api/v1/public/factors/search	GET	X-API-Key	Full-text search factors
/api/v1/public/factors/{factorId}	GET	X-API-Key	Get one factor
/api/v1/public/factors	GET	X-API-Key	Browse/filter factors
/api/v1/public/sources	GET	Public	Source and licence metadata
/api/v1/public/countries	GET	Public	Countries with factor counts
/api/v1/public/sectors	GET	Public	Sectors and categories
/api/v1/public/stats	GET	Public	Dataset summary stats
/api/v1/public/calculate	POST	X-API-Key	Single calculation
/api/v1/public/calculate/batch	POST	X-API-Key	Up to 100 calculations
/api/v1/public/openapi.json	GET	Public	OpenAPI spec
/api/v1/developers/register	POST	Authenticated	Create free API key
/api/v1/developers/usage	GET	X-API-Key	Check usage/quota
/api/v1/developers/rotate	POST	X-API-Key	Rotate key
/api/v1/developers/revoke	POST	X-API-Key	Revoke key
Categorisation API
/api/v2/categorize	POST	X-API-Key	Categorise transactions and calculate emissions

Where EcoHedge Infrastructure fits

Built for teams that already have software.

Carbon features in SaaS

Embed compliant emission estimates directly into dashboards your customers already trust.

ERP and accounting enrichment

Use the Categorisation API to auto-classify transactions at import or reconciliation, turning raw spend into auditable emissions without manual mapping.

Procurement and supplier tooling

Score purchase orders and supplier carbon intensity inside your existing workflow.

Consulting and reporting outputs

Generate reproducible, auditor-verifiable carbon results backed by full metadata traceability.

Spend-based Scope 3

Process bulk financial transactions through the Categorisation API to produce organisation-wide Scope 3 estimates with confidence scoring and review flags.

Built for audit scrutiny

Designed to withstand internal governance review, client challenge and external audit.

What you receive

Factor source database

Factor year and unit

Licence information

Methodology context

Timestamped calculation

What stakeholders can verify

Source database

Year and region

Unit mapping

Calculation formula

Attribution requirements

Pricing

Simple, predictable pricing

Start free. Scale when you need to.

Free

£0/month

500 requests/month

Explore and prototype with full API access.

All endpoints
Full factor library
Community support

Get started

Starter

£29/month

10,000 requests/month

For teams integrating carbon data into production.

All endpoints
Full factor library
Email support
Usage dashboard

Start building

Growth

£99/month

100,000 requests/month

High-volume access for scaled applications.

All endpoints
Full factor library
Priority support
Usage dashboard
SLA guarantee

FAQ

Build carbon intelligence into your platform.

Start with a free key. Scale to enterprise compliance infrastructure.

Get API key Talk to us