Proton Drive CLI MCP Server

MCP server for Proton Drive via the official Proton Drive CLI.

Local serverstdioTypeScript

What is the Proton Drive CLI MCP MCP server?

If you already use Proton Drive CLI MCP, the proton drive cli mcp mcp server is the piece that lets your assistant work with it directly. MCP server for Proton Drive via the official Proton Drive CLI.

What the server does

Manage Proton Drive from Claude, Codex, VS Code/Copilot, and any MCP client through Proton's official CLI. Authentication and encrypted Drive behavior stay with Proton's tooling.

Available tools

The toolset is worth reading before you wire it up, because it tells you what the integration is really for:

  • SHA256SUMS — Sigstore JSON attestation bundle
  • Client — Setup
  • Codex — Use the plugin metadata in plugins/proton-drive-cli-mcp
  • Variable — Effect
  • PROTON_DRIVE_CLI_PATH — Use an explicit Proton Drive CLI binary
  • PROTON_DRIVE_CLI_INSTALL_DIR — Override the managed install directory
  • PROTON_DRIVE_AUTH_STATUS_CACHE_MS — Tune successful auth-status caching
  • PROTON_DRIVE_VERSION_CACHE_MS — Tune CLI version caching
  • Area — Tools
  • Files — proton_drive_list, proton_drive_info, proton_drive_create_folder, proton_drive_upload, proton_drive_download
  • Mutations — proton_drive_rename, proton_drive_copy, proton_drive_move, proton_drive_trash, proton_drive_restore, proton_drive_delete, proton_drive_empty_trash
  • Sharing — proton_drive_sharing_status, proton_drive_sharing_invite, proton_drive_sharing_remove, proton_drive_sharing_set_url, proton_drive_sharing_remove_url

Credentials and setup notes

Configuration is passed through the environment: PROTON_DRIVE_CLI_PATH, PROTON_DRIVE_CLI_MANAGE_PATH. Treat anything key-shaped as a real credential — scope it to the minimum the server needs, and rotate it if it ever lands in a shared config.

  • Node.js 22+ for the published package. - Bun 1.3+ for repository development and Bun test coverage. - The official Proton Drive CLI, or network access to Proton's CLI download index for managed install. - Browser access for the official Proton login flow. The CLI is resolved in this order: 1. PROTON_DRIVE_CLI_PATH 2. The managed user-local install path 3. proton-drive or proton-drive.exe

Installation

The server ships on npm as @borealstack/proton-drive-cli-mcp, so your MCP client can launch it on demand — there is no separate build step. Add the server block to your client's configuration, restart it, and the tools register themselves.

Where it fits

This sits in the file and storage access group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. Proton Drive CLI MCP's toolset — SHA256SUMS, Client, Codex and 11 more — is a fair guide to whether it matches your workflow. It is maintained by borealstack; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Proton Drive CLI MCP's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Worth knowing first

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • With 14 tools registered it takes up a noticeable share of the context window; turn it off in projects that never touch Proton Drive CLI MCP.
  • Keep per-call confirmation enabled while you learn its behaviour; it is the cheapest safeguard you have.

Available tools

ToolWhat it does
SHA256SUMSSigstore JSON attestation bundle
ClientSetup
CodexUse the plugin metadata in [plugins/proton-drive-cli-mcp](plugins/proton-drive-cli-mcp).
VariableEffect
PROTON_DRIVE_CLI_PATHUse an explicit Proton Drive CLI binary.
PROTON_DRIVE_CLI_INSTALL_DIROverride the managed install directory.
PROTON_DRIVE_AUTH_STATUS_CACHE_MSTune successful auth-status caching.
PROTON_DRIVE_VERSION_CACHE_MSTune CLI version caching.
AreaTools
Filesproton_drive_list, proton_drive_info, proton_drive_create_folder, proton_drive_upload, proton_drive_download
Mutationsproton_drive_rename, proton_drive_copy, proton_drive_move, proton_drive_trash, proton_drive_restore, proton_drive_delete, proton_drive_empty_trash
Sharingproton_drive_sharing_status, proton_drive_sharing_invite, proton_drive_sharing_remove, proton_drive_sharing_set_url, proton_drive_sharing_remove_url
Invitationsproton_drive_invitation_list, proton_drive_invitation_accept, proton_drive_invitation_reject
GuardrailBehavior

How to install the Proton Drive CLI MCP MCP server

{
  "mcpServers": {
    "proton-drive": {
      "command": "npx",
      "args": ["-y", "@borealstack/proton-drive-cli-mcp"],
      "env": {}
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • Node.js 22+ for the published package. - Bun 1.3+ for repository development and Bun test coverage. - The official Proton Drive CLI, or network access to Proton's CLI download index for managed install. - Browser access for the official Proton login flow. The CLI is resolved in this order: 1. PROTON_DRIVE_CLI_PATH 2. The managed user-local install path 3. proton-drive or proton-drive.exe
VariableDescriptionRequired
PROTON_DRIVE_CLI_PATHFilesystem location the server is allowed to use.Optional
PROTON_DRIVE_CLI_MANAGE_PATHFilesystem location the server is allowed to use.Optional

Example prompts to try

  • Use Proton Drive CLI MCP to SHA256SUMS.
  • Use Proton Drive CLI MCP to Client.
  • Use Proton Drive CLI MCP to Codex.

Frequently asked questions

It connects Proton Drive CLI MCP to MCP-compatible AI assistants such as Claude and Cursor, exposing 14 tools (SHA256SUMS, Client, Codex, and more) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with Proton Drive CLI MCP directly.