Best Proton MCP Servers
Proton provides privacy and security products and services to millions of users around the world, including an encrypted email service, VPN, calendar, cloud storage, and password manager.
Why this server?
Supports running Diablo II: Resurrected modding tools under Proton on Steam Deck, including auto-detection of game path.
AlicenseAqualityCmaintenanceDiablo II Resurrected modding toolkit — character builder, mod build/deploy pipeline, save inspector, CASC reader, and MCP server for Claude/Codex/AI integration. Linux/Steam Deck.2234MITWhy this server?
Supports sending and checking emails on ProtonMail via direct SMTP/IMAP or through the ProtonMail Bridge.
AlicenseAqualityBmaintenanceA multi-service email platform for MCP-compatible clients that supports standard email providers, transactional APIs, and local testing environments. It enables users to send and receive emails, monitor service health, and integrate with messaging webhooks like Slack and Discord through natural language commands.102MITWhy this server?
Provides AI assistants with full access to a Proton Mail account, enabling sending, reading, searching, and organizing email over SMTP and IMAP.
AlicenseAqualityCmaintenanceUnofficial MCP server for Proton Mail (not affiliated with Proton AG) — send, read, search & organize email over SMTP/IMAP31883MITWhy this server?
Integrates with Proton Suite, providing tools for Mail (IMAP/SMTP via Bridge), Pass (pass-cli for password management), Drive (CLI for file sync and audit), and Calendar (CalDAV stub). Enables AI agents to manage emails, passwords, files, and calendar events.
AlicenseAqualityAmaintenanceAn MCP server for managing Proton Mail, Pass, Drive, and Calendar through local IMAP/SMTP, pass-cli, and Proton Drive CLI, enabling AI agents to operate the mailbox, manage passwords, sync files, and classify emails.39AGPL 3.0Why this server?
Allows managing ProtonMail accounts via IMAP (requires ProtonMail Bridge), enabling operations such as searching, reading, sending, moving, and deleting emails, as well as folder management.
AlicenseAqualityAmaintenanceEnables Claude to interact with email accounts via IMAP and SMTP, providing tools for searching, reading, sending, and managing emails across multiple providers.4041776MITWhy this server?
Provides interaction with Proton services via the local Proton Bridge, enabling secure access to mailbox data, thread management, and analytics.
AlicenseAqualityAmaintenanceProfessional Proton Mail management with 20+ tools, advanced analytics, and seamless Proton Bridge integration.9513936MITWhy this server?
Provides comprehensive email management capabilities for Proton services via Proton Mail Bridge, enabling folder navigation, searching, reading messages with attachments, and sending or replying to emails.
AlicenseAqualityCmaintenanceEnables full Proton Mail management through the Model Context Protocol by connecting to a local Proton Mail Bridge instance. It allows users to list, search, read, send, and organize emails using natural language commands.81MITWhy this server?
Integrates with ProtonMail email accounts to enable reading, searching, sending, managing, scheduling, and analyzing emails via IMAP/SMTP.
AlicenseAqualityBmaintenanceAn MCP server providing comprehensive email capabilities via IMAP and SMTP, enabling AI assistants to read, search, send, manage, schedule, and analyze emails across multiple accounts.496,494LGPL 3.0Why this server?
Provides tools for managing emails on ProtonMail via IMAP/SMTP (using ProtonMail Bridge), including listing, reading, searching, sending, replying, moving, flagging, and deleting messages.
AlicenseBqualityCmaintenanceUniversal IMAP/SMTP MCP server that works with any email provider, providing tools to read, search, send, and manage emails.101361MIT