Sorry if this is has already been answered elsewhere, first time using rclone forums.
Is it possible to use rclone to download from supported sites without logging in or making an account? I wanted to use rclone to download public/unlisted folders off of various supported sites, but it looks like rclone wants me to log in. I don't have an account on some of them (like proton) nor do I want to make one. I just saw that rclone could download from them, and I would prefer to download with rclone rather then the browser.
Not sure if this is the only answer but I think as far as I know you need to have an account
You mentioned Proton Drive as an example I have a Proton Drive account and I use Rclone to access it however I don't think you can access someone's data in an account without logging into the account.
Which of the supported Clouds are you trying to access without logging in?
If you're looking to download files from a web page without loading a browser and you have the URL of the file you can use the command line utility wget. I know that it's available for Linux and I have a version of it that I downloaded for Windows.
Right now I'm trying to download from proton, but that doesn't seem like it would work with wget. When I tried with wget, it just downloaded the html formatting and the like (command was wget -mpkKE). I also occasionally download from mega, gdrive, and dropbox. The urls I'm trying to download from are all public, I can download from browser with no account needed, so I figure I should be able to download without an account.
Here is a sample from proton drive. It's a folder with one file in it.
Proton supports end to end encryption and the file and folder must first be decrypted before it can be viewed and I doubt that rclone can handle this. Give it a try and see if you can grab the file.