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    For Developers

    Carbon Accounting API

    Embed carbon intelligence directly into your platform. The EcoHedge API provides emission factor lookup, automated spend categorisation and carbon calculations via a simple REST interface.

    • 277,000+ emission factors via REST API
    • Automated spend-to-emissions categorisation
    • Simple integration, comprehensive documentation

    EcoHedge works with...

    20+ accounting integrations, including:

    Xero
    Xero
    Quickbooks
    Quickbooks
    Sage
    Sage
    Zoho
    Zoho

    Building Carbon Features Should Not Mean Building Carbon Infrastructure

    If you are building a platform that needs carbon data, you face a choice: spend months building emission factor databases, categorisation logic and calculation engines from scratch, or use an API that handles it all.

    Maintaining emission factor databases is a full-time job. Factors change annually, new sources are published, and different regions use different methodologies. Getting the categorisation right requires domain expertise that most development teams do not have.

    The EcoHedge API gives developers access to production-ready carbon accounting infrastructure. Focus on building your product while we handle the emission factors, categorisation and calculations.

    Two APIs, One Platform

    Factor API

    Search and retrieve emission factors from our database of 277,000+ factors across 261 countries. Filter by category, country, source and year.

    277k+ factors

    Categorisation API

    Send transaction descriptions and amounts. Our multi-signal classification pipeline returns the correct emission category and calculated emissions.

    Automated classification

    Developer-Friendly

    RESTful API with comprehensive documentation, SDKs and example code. Get started in minutes with our quickstart guide.

    Full documentation

    How It Works

    1

    Get Your API Key

    Sign up and get your API credentials. Free tier includes 100 requests per month.

    2

    Integrate

    Use our REST API to embed carbon data into your platform. Comprehensive docs and examples included.

    3

    Scale

    Move from free to paid tiers as your usage grows. Enterprise pricing available for high-volume use.

    What Our Customers Say

    "The API documentation is excellent. We had carbon data flowing through our platform within a day."
    Developer at fintech startup
    "Building our own emission factor database would have taken months. The EcoHedge API saved us enormous time and effort."
    CTO, sustainability platform
    "The categorisation API is remarkably consistent. It handles edge cases that we expected to need manual review."
    Lead engineer, accounting SaaS

    Start building with the EcoHedge API

    Get your API key and embed carbon intelligence into your platform today.

    Start free today
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