"Setting Up or Using an MQTT Server" matching MCP servers:

Enables interacting with MQTT brokers to publish, subscribe, and manage connections, with a real-time web UI for visual feedback.

Provides MQTT communication capabilities for Large Language Models and other clients, enabling connections to MQTT brokers, publishing and subscribing to topics, and managing real-time messaging workflows.

An MCP server that gives AI agents full access to Follow Up Boss CRM via natural language, enabling CRUD operations on people, deals, appointments, and more through 160 tools.

MCP server for Yahoo Mail over IMAP+SMTP that enables AI assistants to manage emails fully—listing, reading, searching, threading, flagging, moving, archiving, handling attachments, and sending/reply/forward/draft—using an app-specific password.

Send real physical postcards worldwide via AI agents. Supports single and bulk send (up to 500 recipients), balance checking, delivery tracking, and volume pricing from $0.72/card.

An MCP server that integrates with Hunter.io API to find and verify email addresses using domain and name information.

An MCP server that enables interaction with Twist workspaces using the Twist REST API, allowing users to manage their Twist inbox by viewing, archiving, unarchiving, and marking threads as read.

MCP server for the official X API, enabling agents to read and publish posts, look up users, and search posts with safe read-only default and explicit write mode.

A Model Context Protocol (MCP) server implementation that provides EMQX MQTT broker interaction.

Connect AI assistants to your email inbox using the Model Context Protocol (MCP), supporting IMAP, POP3, and SMTP on Windows.

Enables MQTT broker operations like connect, subscribe, and publish through MCP over SSE transport.

An integration server that provides Claude Desktop access to Gmail, enabling users to view recent emails and search their Gmail inbox using natural language commands.

Enables natural language management of Gmail through MCP tools for searching, analyzing, summarizing, drafting, and sending emails, with AI reasoning and user confirmation for actions.

MCP Server for retrieving Signal messages using signal-export logic.

Enables AI assistants to draft content such as PR descriptions, tickets, or messages, with a review window for live preview, editing, and approval before submission.

Enables intelligent monitoring and management of Zoom rooms across multiple sites using smart location resolution and hierarchical discovery. It provides tools for checking room status, retrieving location hierarchies, and accessing detailed room configurations through the Zoom API.

Scans suspicious messages, URLs, and text for scams inside any MCP-compatible AI assistant. No signup or API key needed for anonymous use.

Enables Gmail label management with tools to list, create, delete labels, and modify labels on messages and threads, handling OAuth2 authentication automatically.

Enables remote control of AI coding assistants (Claude Code/Codex) via Telegram, allowing you to manage long-running tasks, send commands, and receive notifications from anywhere. Supports unattended mode with smart polling for up to 7 days and multi-session management.

Email for AI agents. Send and receive as markdown with human oversight.