Communication MCP Servers — Slack, Discord, Email
Connect AI to your communication tools. Browse MCP servers for Slack, Discord, email, and more. Send messages, manage channels, read conversations, and automate team communication using natural language with communication MCP servers.
Google Admin for Workspace
Multi-Tenant SaaS MCP Server for Google Admin Directory - 1) Enables multi-account management for users, devices, security, and workspace settings across multiple Google Workspace tenants. 2) Empowers AI assistants (Claude, Gemini, Antigravity) to manage users, device security policies, SKUs, and domain configurations via the Google Admin Directory API.
rebar-recurrence
MCP server: RFC-5545 RRULE recurrence math â expand, next, describe, validate. Pure, stateless compute; never throws on a bad rule.
rebar-semver
MCP server: semantic-version math, compare, satisfies, parse, sort, increment, diff, range-match, validate. Pure compute, deterministic where LLMs guess.
rebar-finance
Market hours, trading-day math, option-symbol parsing, and Black-Scholes greeks — the deterministic finance math LLMs get wrong, offline, no market-data API key.
rebar-datetime
Deterministic business-day, holiday & timezone math for 100+ countries — the reliable date logic LLMs hallucinate. No API key, instant answers.
gmail-dna
by VibeDNA
The Gmail MCP that finally works. Anthropic's official Gmail is read-only and returns snippets only on HTML emails. No body content even on FULL_CONTENT mode. Super Gmail fixes both. HTML-aware parsing on every read. Full send, threaded replies, drafts, labels, archive, trash. Plus an AI layer for inbox summaries, action items, and AI-drafted replies. 20 tools, freemium.
social-orders-inbox-mcp
social-orders-inbox-mcp MCP server provides access to inboxes for orders received via social media channels like DMs on Instagram or Facebook Messenger. It enables programmatic retrieval and management of order messages. E-commerce developers and automation engineers use it to integrate social sales into backend systems.
myGmailData
Provides access to Gmail API for listing, reading, sending, and searching emails using OAuth refresh token authentication. Developers integrate it to automate inbox management, extract message data, or send programmatic replies. Data analysts use it for querying email histories in reporting tools or scripts.
Featured Communication MCP Servers
Popular open-source and community communication MCP servers.
Slack MCP Server
Full Slack workspace integration for AI-powered team communication
Discord MCP Server
Gmail MCP Server
Microsoft Teams MCP
What Can Communication MCP Servers Do?
Send Messages
Post to Slack channels, Discord servers, or send emails using natural language.
Manage Channels
Create, archive, and organize Slack channels or Discord servers with AI.
Email Automation
Compose, send, and manage emails through Gmail or Outlook MCP servers.
Notifications
Send automated alerts and notifications to any communication platform.
Communication MCP Best Practices
- Use OAuth tokens with minimal required permissions for security
- Test message sending in a sandbox channel before production use
- Implement rate limiting to avoid API throttling on messaging platforms
- Review AI-generated messages before sending to sensitive channels
Compare Communication MCP Servers
| Feature | Slack | Discord | |
|---|---|---|---|
| Send Messages | ✓ | ✓ | ✓ |
| Read History | ✓ | ✓ | ✓ |
| Manage Channels | ✓ | ✓ | — |
| File Sharing | ✓ | ✓ | ✓ |
| Best For | Business | Community | Formal |
Communication MCP Server FAQ
What is a Slack MCP server?
A Slack MCP server connects AI assistants like Claude to your Slack workspace. It enables sending messages, reading channels, searching conversations, and managing workspace settings using natural language commands.
Can I send emails with an MCP server?
Yes, email MCP servers like Gmail MCP and Outlook MCP allow AI to compose, send, and read emails. You can manage your inbox, search messages, and automate email workflows through natural language.
Which communication MCP server is best for teams?
Slack MCP Server is ideal for tech teams, while Microsoft Teams MCP is better for enterprise organizations using Microsoft 365. Both support channels, direct messages, and integrations.
Is Discord MCP server safe for my server?
Yes, Discord MCP servers use OAuth and bot tokens with configurable permissions. You control exactly what actions the AI can perform on your Discord server.
Can I automate notifications with communication MCP?
Absolutely. Communication MCP servers can send automated notifications to Slack channels, Discord servers, email, or SMS based on triggers from other MCP servers or workflows.
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