Discover our API

Quickly and easily calculate and offset CO2 emissions with our API.

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Response Time

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API Uptime





Calculate emissions

We calculate emissions using so-called emission factors. These usually come from authorities of different countries or NGOs. All emission factors are carefully checked and compared with other sources to ensure their plausibility. Visit our API documentation to learn more about the sources of individual "CALCULATION OPTIONS".

View API doc


Air travel

2 people


1,400 kWh




via emissions

5,212 kg CO2e

via amount


via calculation

2 flights

Quilleco Hydroelectric Power Plant

5,212 kg CO2e ‱ €11.64

Fiji Nadarivatu Hydropower Plant

5,212 kg CO2e ‱ €11.64

Gangwon Wind Park

5,212 kg CO2e ‱ €11.64

Request compensation

Sustainable and verified projects in developing and emerging countries are compensated for avoided or reduced CO2 emissions. The compensation is made through the sale of certificates for CO2 offsetting. By buying and retiring the verified certificates, you offset your own emissions that could not be avoided in the past and thus contribute to global climate protection.

View API doc


Sidrap Wind Energy Park

Biodiversity Project Yarra Yarra

Betulia Hydropower Plant


Emissions offset

1,654,212 kg CO2e

Certificates issued

59,743 Certificates



$client = new Client([
   'base_uri' => '',

$response = $client->get(
   'order/' + $order_id,
      "X-LOCALE" => "EN", 
      "X-API-KEY" => "secret"

$body = $response->getBody();

State-of-the-art technology: Our API

Our cloud-first systems are designed for maximum stability and accessibility, while still maintaining their integrity and ensuring data protection with the latest technologies. Our API scales with each request, so we can always guarantee low query latencies.

Explore our API solutions
  • Data centers in Europe

  • German & English support

Solid data & reliable projects

European Environment Agency Logo
UK Government Logo
NR Canada Logo
CCF Logo
BMU Logo
UN CC Logo
Verra Logo
Gold Standard Logo

Resources to get started:

Ready to start? Contact us or create an account directly.

Create an account and start directly with the calculation and compensation of CO2 emissions via our API. You still have questions or need an individual offer? Use the chat or make an appointment with our sales team.