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?
Enables interaction with ProtonMail via the ProtonMail Bridge to list, fetch, and move emails as well as manage drafts.
AlicenseAqualityDmaintenanceA lightweight MCP server for interacting with IMAP email accounts to read messages, manage folders, and compose draft replies. It supports standard providers and local bridges, providing tools for searching, fetching attachments, and organizing mailboxes without the ability to send or delete emails.1911MITWhy 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.961,061 npm84MITWhy 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.
AlicenseAqualityDmaintenanceEnables 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.82MITWhy this server?
Enables interaction with ProtonMail accounts through the ProtonMail Bridge, supporting operations like searching, reading, and sending emails.
AlicenseAqualityAmaintenanceIMAP/SMTP email MCP server with App Passwords. Auto-discovers Gmail, Outlook, Yahoo, iCloud. 5 composite tools, multi-account.5314 npm35Apache 2.0Why 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.10242 npm1MITWhy this server?
Supports sending and checking emails on ProtonMail via direct SMTP/IMAP or through the ProtonMail Bridge.
AlicenseAqualityAmaintenanceA 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.104MITWhy this server?
Provides tools for managing and interacting with ProtonMail via the local ProtonMail Bridge, including reading, searching, sending, replying to, and forwarding emails, managing labels and folders, and downloading attachments.
AlicenseBqualityBmaintenanceEnables AI assistants to read, search, send, reply, and organize ProtonMail emails through a local ProtonMail Bridge, with automatic Bridge discovery and pinned TLS verification.23LGPL 3.0Why this server?
Integrates with ProtonMail email accounts to enable reading, searching, sending, managing, scheduling, and analyzing emails via IMAP/SMTP.
AlicenseAqualityDmaintenanceAn 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.491,176 npmLGPL 3.0Why 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.236MIT