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.
Deyaho Phone Calls MCP
Let Claude, ChatGPT, Cursor or any AI agent make real phone calls to Mexico and Spain and get the summary, data and transcript. Telephony included.
QRKit: QR Code, Wi-Fi QR, vCard & Barcode Generator
An HTTP+MCP tool to generate QR codes, Wi-Fi QR setups, vCard contact QRs and retail/logistics 1D barcodes (Code 128, Code 39, EAN, UPC, ISBN) over a single round-trip.
PhoneKit
Validate, normalise and enrich phone numbers for 240+ countries: E.164, line type (mobile/landline/VoIP/toll-free/premium), region, carrier and time zones. Signup/checkout, CRMs, SMS/voice and fraud teams. Bulk validate up to 100 numbers. Also exposed as an MCP server (streamable-HTTP) for AI agents.
DNS Email Authentication Diagnostics
Diagnose a domain's email authentication and DNS health with live lookups: SPF records (with include-chain DNS-lookup counting against RFC 7208's 10-lookup limit), DMARC policy enforcement, MX records (incl. null-MX detection), plus RDAP registration expiry, DNSSEC DS-record presence, and nameserver redundancy. Uses Cloudflare/Google DNS-over-HTTPS and rdap.org. No API key needed.
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.
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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