This is Python frontend to the CRDB, a database with published data from cosmic ray measurements. The official website of the CRDB with online-viewer and documentation on the database is https://lpsc.in2p3.fr/crdb. The frontend also installs a command-line interface called crdb to conveniently download data.
The Python frontend internally uses the REST API of CRDB to download data from the database. A tutorial on using the REST API directly can be found at the CRDB tutorial repository. The repository also contains example code on how to make standard plots using the crdb Python frontend.
pip install crdb
The official website of the CRDB has documentation on the database, see https://lpsc.in2p3.fr/crdb. To obtain documentation for the crdb Python package, just use help(crdb) in the Python interpreter. The command-line frontend comes with built-in help, just run:
crdb --help