#messaging

Channel management and messaging capabilities

Give Claude full access to your Slack workspace. Read DMs, channels, threads, search messages, and send replies - all with simple browser token auth. No OAuth requirements/rabbit holes.

MCP Server for Mattermost API. Enables Claude and other MCP clients to interact with Mattermost workspaces - list channels, read/post messages, manage threads, reactions, and monitor topics. Supports flexible configuration via CLI args, environment variables, or config files.

The JustCall Model Context Protocol (MCP) Server lets Large Language Models (LLMs) and AI agents make real-world voice calls and send SMS directly through JustCall’s APIs — securely, contextually, and programmatically. It provides a function-calling interface for conversational AI systems, enabling: 📞 AI-powered calling: Let your LLM initiate, manage, or transcribe calls using JustCall. 💬 Smart messaging: Allow your AI agent to send or respond to SMS within conversations. ⚙️ Seamless integration: Use the MCP standard to connect JustCall’s telephony capabilities with any LLM runtime or orchestration framework. In short: It gives your LLMs a voice and a phone number — turning chatbots into truly conversational agents.

🚀 Supercharge your WhatsApp automation driven by AI! Send messages, summarize conversations, and manage chats using natural language from your favorite AI assistant like ChatGPT, Claude, or custom AI agents. ✨ Easily integrate Wassenger WhatsApp API with any MCP-powered AI client including ChatGPT, VS Code Copilot, Claude Desktop, Cursor, Windsurf and many more! 💬 Transform how you communicate - automate responses, analyze chat patterns, and manage customer conversations at scale, manage WhatsApp chats and groups, everything through simple conversational text or voice commands with your AI assistant.

Sinch provides a global, scalable, secure platform for businesses to communicate with their customers - for messaging, voice, verification and email. These communication capabilities are vital for anyone building customer-connected solutions with AI systems. The Sinch MCP server enables customers who build agentic experiences to easily use Sinch services for communication. The Sinch MCP Server provides AI Assistants such as Claude or code builder such as Cursor or agent builders such as Google, with easy access to various Sinch services including Messaging, Voice, Email, Verification and many more. Messaging channels include RCS, SMS, MMS, WhatsApp, Facebook Messenger, Instagram, Viber Business Messages, Telegram Bot, KakaoTalk, LINE, WeChat and Sinch Chat.

unofficial zulip mcp server

MCP Server for SMS.ir messaging services

MCP Server for Messaging using ClickSend

Secure Messages Control Plane (MCP) Server - A robust platform for managing communication between AI agents

MCP server for NATS messaging system using NATS CLI - enabling AI agents to interact with NATS messaging