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 (15%), freshness (25%), issue health (25%), contributors (10%), and inbound dependents (25%). Average score across these 8 tools: 68.3.
| # | Repository | Score | Stars | Lang | Updated |
|---|---|---|---|---|---|
| 1 | korotovsky/slack-mcp-server The most powerful MCP Slack Server with no permission requirements, Apps support, GovSlack… | 82.7 | 1.5k | Go | 6d ago |
| 2 | chigwell/telegram-mcp Telegram MCP server powered by Telethon to let MCP clients read chats, manage groups, and … | 77.9 | 811 | Python | 1d ago |
| 3 | resend/resend-mcp The official MCP server to send emails and interact with Resend | 70.2 | 474 | TypeScript | 2d ago |
| 4 | SaseQ/discord-mcp A MCP server for the Discord integration. Enable your AI assistants to seamlessly interact… | 69.6 | 211 | Java | 2d ago |
| 5 | tuannvm/slack-mcp-client A Slack bot and MCP client acts as a bridge between Slack and Model Context Protocol (MCP)… | 64.8 | 165 | Go | 16d ago |
| 6 | ai-zerolab/mcp-email-server IMAP and SMTP via MCP Server | 64.0 | 196 | Python | 2d ago |
| 7 | yunfeizhu/mcp-mail-server A lightweight Model Context Protocol (MCP) server that provides IMAP and SMTP email functi… | 59.1 | 20 | TypeScript | 10d ago |
| 8 | jtalk22/slack-mcp-server Session-based Slack MCP for Claude and MCP clients: local-first workflows, secure-default … | 57.8 | 14 | JavaScript | 6d 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 five 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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