"Proton" matching MCP servers:

Enables MCP clients to read and search Proton Mail and create draft-only emails with attachments through the local Proton Mail Bridge, while requiring out-of-band human approval before a draft can be committed.

MCP server that provides full access to Proton Drive via Claude Desktop or CLI, enabling file operations, sharing, and trash management with end-to-end encryption.

Enables AI agents to read a Proton Mail mailbox through a local Proton Bridge instance, listing folders, browsing recent messages, running full-text searches, and reading individual messages with decoded bodies and attachment info. All access is read-only — mailboxes are opened in IMAP READONLY mode, so nothing is ever modified, and the capability model lets operators opt into future draft, organize, send, and delete tools behind explicit confirmations.

Provides a JSON-RPC MCP server that exposes policy-governed agent tools, including paid tools, tool muxing, and OpenAPI-to-MCP conversion, enabling agents to discover, coordinate, and execute tasks within the ProtoOS ecosystem.

An MCP server that gives AI agents permission-gated, audit-logged access to private email providers (Proton Mail via Bridge and plain IMAP), running locally with OAuth-based authentication and human-controlled escalation for destructive operations.

Enables local access to multiple email accounts across Gmail OAuth, IMAP/SMTP, and Proton Mail Bridge, requiring an explicit account ID for each action. It supports listing folders, searching and reading messages, and preparing or sending mail while keeping credentials in the operating system credential store.

MCP server for reading, searching, and sending ProtonMail emails via the ProtonMail Bridge.

MCP server that exposes meetergo's scheduling and CRM API as tools for AI assistants, enabling Proton Calendar-backed booking management and contact operations without Google Workspace.

Enables Google Flights search, complete outbound/return itinerary pairing, deterministic ranking, exact booking-link generation, and Playwright-based price and itinerary verification through MCP tools.

Enables AI assistants to read, search, send, reply, and organize ProtonMail emails through a local ProtonMail Bridge, with automatic Bridge discovery and pinned TLS verification.