Measure CO2 emissions of your APIs
Have you ever wondered about the carbon footprint of your API? This week, the 27th climate summit takes place in Egypt. This inspired us to draw attention to the emissions produced by our online behaviour. We introduced some CO2-related features to our API testing tool: - Calculate carbon emissions of an API call - Set up a check to validate that your API endpoint doesn't cross the limit when it comes to emissions - Test all your API endpoints and get an approximate calculation of your API emissions in total We hope that by using these features, you will become more aware of the carbon…
Measure CO2 emissions of your APIs launched on November 15, 2022 with 20 votes, #1,151 of 3,471 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 3 years on.
In plain words
Measure CO2 emissions of your APIs is an API testing tool that calculates the carbon footprint of individual API calls and entire endpoints. Developers can set emissions limits to validate that their APIs stay within carbon thresholds and test all endpoints to get a total emissions estimate. The tool helps teams understand the environmental impact of their infrastructure and make more sustainable hosting decisions.
written from the facts on this page · September 2026
From the sources
API Testing and Monitoring made simple.
In the maker’s words, at launch
Have you ever wondered about the carbon footprint of your API? This week, the 27th climate summit takes place in Egypt. This inspired us to draw attention to the emissions produced by our online behaviour. We introduced some CO2-related features to our API testing tool: - Calculate carbon emissions of an API call…
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