We’re making our carbon.txt validation API available for public use, allowing anyone to look up, parse and validate carbon.txt files in their own applications.
One of our principal hopes for our carbon.txt project is that it can become supporting infrastructure for a broader green data ecosystem – allowing an easy way for anyone to discover and access sustainability claims, emissions and energy use data for any website, for analysis and reporting, and for use in other products and services.
In order to enable this, we’ve been making tools and services available for developers to work with carbon.txt – including our python package and plugin architecture.
The python package is our reference implementation of the carbon.txt proposed standard, and we use it in our own services – the file builder and validator available on the carbon.txt website, and in the Green Web portal and Green Web checker. However, this doesn’t help developers who work with different languages, and we’re keen that the carbon text infrastructure be as widely usable as possible in order to grow the broader ecosystem of sites publishing their data with carbon.txt, and folks using it in their own products, services, analysis and decision-making.
As a result, we’ve made the carbon.txt validator available as an HTTP API, usable by anyone to find, parse and validate carbon.txt files on the web. The API can be used to check the syntax and contents of carbon.txt files, retrieve parsed sustainability disclosures, and to extract emissions information from linked CSRD reports and AI model cards.
Full documentation and examples are available on our developer documentation site. While access is (for the moment) free, we do require you to register for a Green Web Foundation API key and use it to authenticate – you can do this by logging into the Green Web portal.
We’re excited to see what innovative and creative uses people put the data available through carbon.txt to – please do get in touch with us to share what you make with it, or if you have any comments, questions, or suggestions for improvement!
