
Claude Desktop
Desktop · Freemium · Proprietary
Anthropic's official Claude AI desktop application. Supports MCP servers to extend functionality.
Communication · Developer Tools

amotivv/protonmail-mcp
This MCP server provides email sending functionality using Protonmail's SMTP service. It allows both Claude Desktop and Cline VSCode extension to send emails on your behalf using your Protonmail credentials.
See repository
Setup steps are in the repository README.
Send emails to one or multiple recipients
Support for CC and BCC recipients
Support for both plain text and HTML email content
Comprehensive error handling and logging
Details on this page are taken from the project's README. Open README
Clients mentioned in this server's README:

Desktop · Freemium · Proprietary
Anthropic's official Claude AI desktop application. Supports MCP servers to extend functionality.

Desktop · Free · MIT
An AI coding assistant integrated into the IDE. Supports MCP servers for enhanced functionality.
Desktop · Freemium · MIT
VS Code integrates MCP with GitHub Copilot through agent mode, allowing direct interaction with MCP-provided tools in your agentic coding workflow. Configure servers in Claude Desktop, workspace, or user settings, with guided MCP installation and secure handling of secrets in input variables to avoid leaking hardcoded keys.

elie222/inbox-zero
To help you spend less time in your inbox, so you can focus on what matters most.

lharries/whatsapp-mcp
This is a Model Context Protocol (MCP) server for WhatsApp.

Dhravya/apple-mcp
Apple MCP toolset is a collection of Apple native tools based on the MCP protocol, providing integration services for Messages, Notes, Contacts, Mail, Reminders, Calendar and other Apple ecosystem features.

supercorp-ai/supergateway
Supergateway runs MCP stdio-based servers over SSE (Server-Sent Events) or WebSockets (WS) with one command. This is useful for remote access, debugging, or connecting to clients when your MCP server only supports stdio.

line/line-bot-mcp-server
Model Context Protocol (MCP) server implementation that integrates the LINE Messaging API to connect an AI Agent to the LINE Official Account.

resend/mcp-send-email
Connect your AI agent to the Resend platform. Send and receive emails, manage contacts, broadcasts, domains, and more, directly from any MCP client like Claude, Cursor, or Claude Code.