carbon-txt-validator 0.0.2

A validator for carbon.txt files, by the Green Web Foundation

Carbon.txt validator

This validator reads carbon.txt files, and validates them against a spec defined on http://carbontxt.org.

Usage

With the CLI

Run a validation against a given domain, or file, say if the file is valid TOML, and it confirms to the carbon.txt spec.

The following commands assume you are working in a virtual environment:

# parse the carbon.txt file on default paths on some-domain.com
carbon-txt validate domain some-domain.com

# parse a remote file available at https://somedomain.com/path-to-carbon.txt
carbon-txt validate file https://somedomain.com/path-to-carbon.txt

# parse a local file ./path-to-file.com
carbon-txt validate file ./path-to-file.com

# pipe the contents of a file into the file validation command as part of a pipeline
cat ./path-to-file.com | carbontxt validate file

Using UV

If you are not using a virtual environments, but running uv, in a project you can run it with uv run carbon-txt your args

With the HTTP API

You can also validate carbon.txt files sent over an HTTP API.

# run the carbon-txt validator as a server using the default django server. Not for production
carbon-txt serve

For production, Granian, a performant webserver is bundled. Pass the flag --server granian to use it.

# run the carbon-txt validator as a server using the production granian server
carbon-txt serve --server granian