// MCP TOOL REFERENCE

PROTON-MCP TOOLS

36 tools from the Proton-MCP MCP Server, categorised by risk level.

// ALL 36 PROTON-MCP TOOLS

READ 18 tools

Read calendar__get_event Get a single calendar event by its UID Read calendar__list_events List calendar events in a date range. Can read both Jorgenclaw and Scott calendars. Read drive__download Download a file or folder from Proton Drive to local path Read drive__list List files and folders at a path on Proton Drive Read mail__get_attachments Download attachments from an email. Returns base64-encoded content. Read mail__get_message Get a single email by message ID (sequence number). Includes threading headers. Read mail__get_thread Fetch the full email chain (thread) for a message Read mail__get_unread Get unread emails from Proton Mail inbox Read mail__list_folder_messages List messages in a specific folder (Sent, Drafts, Trash, or any label) Read mail__list_folders List all mail folders and labels Read mail__list_messages List recent emails from Proton Mail inbox Read mail__search_messages Search emails by keyword in subject and body Read pass__get_item Get a credential from Proton Pass by name. Returns username, password, and URLs. Read pass__get_totp Generate the current TOTP authentication code for an item in Proton Pass. Use for autonomous 2FA. Read pass__list_items List credential names in a Proton Pass vault (no passwords returned) Read pass__list_vaults List available Proton Pass vaults Read pass__search_items Search Proton Pass items by keyword (no passwords returned) Read vpn__status Check VPN connection status — shows current IP, location, and whether traffic is routed through ProtonVPN

WRITE 14 tools

Write mail__forward_message Forward an email to another recipient Write mail__star_message Star or unstar an email Write calendar__create_event Create a calendar event. Use for reminders, follow-ups, and deadlines. Write calendar__update_event Update an existing calendar event Write drive__mkdir Create a folder on Proton Drive Write drive__upload Upload a file to Proton Drive Write drive__upload_folder Upload a folder to Proton Drive (copies all contents recursively) Write mail__mark_message Mark an email as read or unread Write mail__move_message Move an email to a different folder (e.g. Trash, Archive, a label) Write mail__reply_message Reply to an email, preserving the thread. Set reply_all=true to include all original recipients. Write mail__send_message Send an email via Proton Mail. Supports CC, BCC, HTML, and file attachments. Write pass__create_item Store a new login credential in Proton Pass Write pass__generate_password Generate a random password using Proton Pass Write pass__update_item Update an existing credential in Proton Pass

DESTRUCTIVE 4 tools

Destructive calendar__delete_event Delete a calendar event Destructive drive__delete Delete a file or folder from Proton Drive Destructive mail__delete_message Permanently delete an email from inbox Destructive pass__trash_item Move a credential to the trash in Proton Pass

// FAQ

How many tools does the Proton-MCP MCP server have? +

The Proton-MCP MCP server exposes 36 tools across 3 categories: Read, Write, Destructive.

How do I enforce policies on Proton-MCP tools? +

Route the Proton-MCP server through the PolicyLayer gateway. Define allow, deny, or approval rules per tool in the dashboard; they are enforced on every call before it reaches the server.

What risk categories do Proton-MCP tools fall into? +

Proton-MCP tools are categorised as Read (18), Write (14), Destructive (4). Each category has a recommended default policy.

Enforce policy on every Proton-MCP tool call.

Start from Proton-MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →

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