Calculate & compensate CO₂ emissions - via API

Join 500+ companies using KlimAPI to integrate sustainability into their daily operations.

Test & implement for free – no credit card required.

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klimapi.pendingByCalculation({
  pendingByCalculationRequest: {
    calculationOptions: [
      {
        "type": "freighting_goods",
        "departure": "Berlin, Germany",
        "destination": "Munich, Germany",
        "weight": 5,
        "weight_unit": "kilograms"
      }
    ],
  },
}).then((data) => {
  console.log(data);
});

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100% GHG Compliant

Our system fully adheres to the GHG Protocol.

Latest Emission Factors

We ensure up-to-date and accurate factors for emission calculation.

Lightning-Fast API

We answer more than 95% of API requests in under 100ms.

Secure Compensation

Through comprehensive due diligence, only the top 5% of projects are selected.

Our API

Calculate emissions

Compensate emissions

Rely on Our Robust API Infrastructure

We make calculating and compensating easier for you than ever before, so you can fully concentrate on your core business.

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API Availability

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Requests/day

Available Languages

+

Currencies

Receive Individual CO₂ Offsets with Just One API Call

An individual, brandable certificate is issued for each compensation. You can also host the certificates on your own domain. Optionally, you can query all certificate details via API and create your own completely custom certificate page.

View sample certificate

Industry-Leading Number of Automated Calculation Options

Flight

Car journey

Ferry

Hotel stay

Bus trip

Train journey

Fuel

Freight

Cloud Computing

Electricity

Food

Water consumption

Textiles

Electronics

Real estate

Furniture & Furnishings

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Full Transparency

Our Compensation Projects

Globally Distributed Projects

Our project portfolio spans all continents and includes a variety of technologies and project types, ensuring we have a suitable project for everyone.

Hand-Selected

Our in-house team of compensation experts carefully selects projects and ensures they meet the highest standards. Additionally, all projects are certified by independent third parties.

Technology First

To ensure maximum impact, our projects utilize the latest technologies for combating climate change. We enable solar parks, wind farms, biogas plants, and much more.

Learn more about our portfolio

Our Standards & Certifications

Resources for getting started

Getting Started

Use our wizard to quickly and easily find the right starting point for you.

CodeNo-Code

API

Our API offers you all extensive options for calculation and compensation.

Code

Emissions Database

Discover our constantly growing database for calculating individual CO2 emissions.