Proton Drive’s new CLI brings encrypted cloud storage to scripts and servers

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When most people think of “cloud storage,” a website, an app, or a linked folder in your file management system immediately comes to mind. Our interactions with the cloud are mainly through graphical interfaces. But this is, of course, not really necessary. Graphical User Interfaces (GUIs) are there for our benefit. When one computer speaks to another, they can forego all that decoration and get straight down to business.

Which is why Proton has created Proton Drive CLI. It’s a Command Line Interface (CLI) for the company’s excellent, privacy-focused cloud storage service. So, if you’re running a server or managing your storage with scripts, you can skip the mouse-clicking and just issue the commands you need to move your data securely into the cloud and manage it there. You’re not limited to a desktop computer or laptop, either. You can access your files at any time from your phone, a web browser, or a variety of other devices with the right internet connectivity.

Proton Drive now works where power users do

The addition of a CLI to Proton Drive is a game-changing move, because you can do all the normal file management stuff directly from the command line, which is also great if you like to SSH into your server and want to manually change how it interfaces with your cloud drive.

And you can list files and folders, upload and download files, move data around, and perform other common Drive operations directly from a shell. Likewise, files or folders can be uploaded to your drive with a command.

When you use the Proton Drive CLI, you’re using the exact same backend that the Proton Drive apps do. This isn’t some third-party solution; it’s the actual native command structure used to develop the official Proton apps.

Empower your AI with Proton Drive

If you’ve embraced the power of running your own local AI, or agentic AI solution, the Proton Drive CLI opens up many possibilities.

By using the CLI, your AI can save its output directly to shared folders, build projects, or upload code for instant access by your team, and so much more. The Proton Drive CLI removes an entire layer of abstraction between your AI and your cloud storage, making integration much easier and errors less likely.

Your NAS can finally back up directly to Proton Drive

You might think that the Proton Drive CLI only matters for people running public servers or software developers. However, homelabbing is a common hobby these days, with many people running a full NAS at home.

With Proton’s CLI, you can now create custom integrations with your home servers and NAS devices. Scheduling off-site backups for your servers or NAS becomes dead easy. Just create a script that uploads your targeted files at the intervals you specify, and have a mirror of your latest critical data in the cloud, all automatically handled.

Headless servers, Raspberry Pis, NAS devices, and remote Linux machines are suitable uses for the CLI. It can also be combined with tools, such as cron or systemd timers, to automatically run jobs.

This makes Proton Drive much more useful for a homelab or developer environment than another folder syncing service. You can turn your Proton Drive into an off-site target for data generated by devices without a GUI and never have anyone directly sitting in front of them. Basically, if it’s a system you’d use remotely via a command line anyway, you might as well use Proton Drive CLI as your cloud solution.

Proton Drive CLI is available as a standalone binary, and the company also provides a baseline Linux x64 build intended for older or embedded x86-64 hardware that lacks AVX2 support. That's perfect for NAS appliances and low-power home-server hardware that doesn't use a particularly recent CPU.

The same idea works for development and deployment workflows

Scheduled backups are just the most obvious application of the Proton Drive CLI, but its potential is limitless.

Since the Proton Drive CLI can be scripted, you can integrate it into your development tools and deployment pipeline like any other command-line utility you already use.

Let’s take your build server as a prime example. You could script it so that every time your server completes a nightly build or a release archive, it’s synced to your Proton drive. You could set things up so that automated reports are uploaded to a shared folder, which other users can view with the standard GUI apps. And you can set up a deployment script with a cloud safety net, where it archives your configurations before making potentially destructive changes. That makes recovery trivial.

The CLI can return JSON output, which is brilliant for automation. Now a script can just receive structured data directly and act on it with no ambiguity.

For businesses, that can make time-sapping, mundane workflows much easier to reproduce. Instead of documenting a sequence, such as "open Drive, upload this file, create a link, and give this person access," you can turn those steps into a script.

It can automate sharing as well as storage

One of the main reasons anyone wants cloud storage in the first place is the ability to securely share files with the right people, with the right level of access. Since CLI uses the same command set as the actual Proton Drive SDK, you can also manage invitations, set permissions, and generally manage your cloud drive. So, when new data is generated and automatically uploaded using your custom script, you can handle all that management work at the same time. No need to hop on a GUI app and assign people manually.

That could be useful in a business workflow where access needs to follow the life cycle of a project. A script might upload a report and grant a collaborator access when a project begins, for example. When the project is finished, another automated step could revoke that access again.

Automation doesn't mean giving up Proton Drive's privacy model

Proton’s entire service is set apart by its privacy focus. It’s something that already draws technical professionals and businesses that need to protect sensitive information, and using the Proton Drive CLI does nothing to diminish this.

Proton Drive CLI performs end-to-end encryption before uploading your data, just like the GUI apps. So you get the same powerful zero-knowledge security model Proton is known for, but in a scriptable form with flexible custom automation.

CLI also handles authentication in its own way. You don’t have to do something as insecure as putting your account password into a plaintext script. The CLI uses Proton's authentication flow and can store credentials using operating-system facilities such as Windows Credential Manager, macOS Keychain Services, or libsecret on Linux.

Both the CLI and the underlying Proton Drive SDK are also available on GitHub, giving developers the option to inspect the code or build more advanced integrations themselves.

Thanks to the CLI, Proton Drive can live inside the same scripts, scheduled tasks, and workflows you’re already using to manage your headless systems. If you’re using the GUI version of Proton Drive, you can now use the CLI to extend it to all your devices, not just the ones with a screen and seat for a warm body.