APPLICATION PROGRAMMING INTERFACE (API)   ICAO has developed a new API for the ICAO Carbon Emissions Calculator (ICEC), allowing automatic integration with software, webpages, or mobile applications released by third-party organizations. The API directly estimates the air travel-related portion of CO2 emissions from these tools.       HOW DO I TRY THE API & ACCESS DATA?   Try the ICEC API Demo (100 calls) per the following steps: 1. Go to this link: ICEC API DEMO; 2. Create an account as per the steps on pages 3-8 of the        End User Guide; 3. Ensure to select and subscribe to the ICEC DEMO icon; 4. Once the subscription is approved, generate a key as per     pages 8-11 of the help guide; 5. Ensure you select to try out the /carbonemission     (not /un/carbonemission). ​

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SERVICE PLANS AND PRICING

Your registration to our API Data Service comes with 100 free calls. After this free trial, you can choose from two different plans.

​API SUBSCRIPTIONS come in five levels, from 1000 calls to unlimited calls. They are offered through our online store. Unlimited calls are best for professionals who need the latest information. It allows for the integration of the APIs of your choice into your software. Stay always up-to-date without any limits.

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FULL DATASET DOWNLOAD are offered for those with extensive data needs as an alternative to the API subscription. We can provide updates (i.e., annual, bi-annual, quarterly) based on your needs.

For inquiries regarding the Full Data-Set Downloads or Unlimited Calls options, please get in touch with icecapi@icao.int. The pricing grid for the use of the ICEC API is available at the bottom of this page. Please note that the prices below may be subject to change without notice. By purchasing any ICEC API options, you agree to the Terms and Conditions.

*Note: Prior to purchasing any ICEC API subscription level of calls or the full dataset downloads, the customer is required to sign a license agreement.

SUMMARY OF THE METHODOLOGY USED

CO2 Emissions per passenger consider the load factor and are based only on passenger operations (i.e., fuel burn associated with belly freight is not considered). ICEC incorporated complex and regularly updated databases on scheduled flights, passengers/cargo load factors and aircraft fuel burn.

The steps for the estimation of CO2 emissions per passenger:

STEP 1: Estimation of the aircraft fuel burn

STEP 2: Calculation of the passengers' fuel burn based on a passenger/freight factor which is derived from RTK data

STEP 3: Calculate occupied seats (assumption: all aircraft are entirely configured with economic seats). Seat occupied = Total seats               * Load Factor

STEP 4: CO2 emissions per passenger = (Passengers' fuel burn * 3.16) / Seat occupied

Note: For flights longer than 3000 km, CO2 emissions per passenger in premium cabin = 2 x CO2 emissions per passenger in economy