Best MCP Servers for Communication & Messaging
Top-ranked MCP servers for Slack, email, Discord, Telegram, and messaging integrations. Let your AI agent send and receive messages.
Communication MCP servers give AI agents the ability to send messages, read channels, create notifications, and integrate with messaging platforms. They close the loop between your agent's actions and the humans who need to know about them.
This guide ranks the top communication MCP servers from the AgentRank index — covering Slack, email (SMTP, SendGrid, Mailgun), Discord, Telegram, and webhook-based notification systems.
Top Communication & Messaging MCP servers
Ranked by the composite AgentRank score — a weighted blend of stars (10%), freshness (20%), issue health (20%), contributors (8%), and inbound dependents (22%). Average score across these 8 tools: 91.6.
| # | Repository | Score | Stars | Lang | Updated |
|---|---|---|---|---|---|
| 1 | ag2ai/ag2 AG2 (formerly AutoGen): The Open-Source AgentOS.Join us at: https://discord.gg/sNGSwQME3x | 97.3 | 5.0k | Python | 7d ago |
| 2 | Lifecycle-Innovations-Limited/claude-ops Business operating system for Claude Code — 57 skills, 21 agents, smart daemon. Unified in… | 92.4 | 543 | Shell | 8d ago |
| 3 | kagent-dev/kagent Cloud Native Agentic AI | Discord: https://bit.ly/kagentdiscord | 91.9 | 4.0k | Go | 7d ago |
| 4 | Wh1isper/mcp-email-server Full-featured, multi-account MCP email server for Windows, macOS, and Linux—read, search, … | 91.4 | 355 | Python | 7d ago |
| 5 | smixs/iva-agent AI assistant in Telegram that remembers everything and helps you run your life. Self-hoste… | 90.9 | 237 | TypeScript | 7d ago |
| 6 | nikolausm/imap-mcp-server Full-featured IMAP & SMTP email for AI assistants: search, read, send, organize and clean … | 89.7 | 107 | TypeScript | 8d ago |
| 7 | ErisPulse/ErisPulse Event-driven multi-platform bot framework with Dashboard, Docker, hot-reload & module mark… | 89.7 | 57 | Python | 8d ago |
| 8 | lemonade-sdk/lemonade Lemonade helps users discover and run local AI apps by serving optimized LLMs right from t… | 89.2 | 5.9k | C++ | 7d ago |
Choosing by use case
- Slack
- Post messages, read channels, react to events, and send DMs from within your agent workflow.
- Email (SMTP / SendGrid)
- Send transactional emails, read inbox messages, and manage mailing lists programmatically.
- Discord & Telegram
- Bot integrations for community platforms — post alerts, respond to commands, and moderate channels.
- Webhook notifications
- Push events to external services via webhooks — useful for alerting, Zapier triggers, and custom dashboards.
Quick setup
Most MCP servers follow the same config pattern. Add this to your Claude Desktop, Cursor, or Windsurf MCP config file:
{
"mcpServers": {
"slack": {
"command": "npx",
"args": ["-y", "@modelcontextprotocol/server-slack"],
"env": { "SLACK_BOT_TOKEN": "xoxb-...", "SLACK_TEAM_ID": "T..." }
}
}
}See the integrations page for platform-specific setup guides for Claude Code, Cursor, VS Code, Windsurf, and Cline.
Reading the AgentRank signals
Each tool in this guide is scored on the core signals that predict long-term reliability:
| Signal | Weight | What it means |
|---|---|---|
| Stars | 15% | Raw popularity — how many developers have found and bookmarked this tool |
| Freshness | 25% | Days since last commit — tools with no recent commits decay hard after 90 days |
| Issue health | 25% | Ratio of closed to total issues — measures maintainer responsiveness |
| Contributors | 10% | More contributors = less bus-factor risk, broader review surface |
| Dependents | 25% | How many other repos depend on this — the strongest signal of real-world adoption |
Query this live from your editor: Install AgentRank in Cursor, VS Code, or Claude Code — your AI agent can query live rankings on demand.
Missing a tool? Submit it to the index — new tools are scored in the next nightly crawl.
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