mcp-server

Slack MCP Server Guide

Connect AI agents to Slack workspaces through MCP. Send messages, read channels, manage threads, and automate workflows.

Install
npx -y @anthropic/mcp-server-slack

Overview

The Slack MCP server enables AI agents to interact with Slack workspaces programmatically. Agents can read channel messages, send responses, manage threads, search message history, and trigger workflow automations. This is commonly used in customer support agents, incident response automation, and team productivity tools. Security is critical because Slack workspaces contain sensitive internal communications.

Features

  • -Read and send messages in channels and DMs
  • -Thread management and replies
  • -Message search with filtering
  • -Workflow trigger automation
  • -File upload and sharing

Security Considerations

Slack MCP servers have access to your workspace's message history, which may contain credentials, internal discussions, and PII. Always use OAuth scopes to restrict access to specific channels. Never grant the bot user admin permissions. Monitor for data exfiltration -- an compromised agent could silently read and forward sensitive messages.

Scan for vulnerabilities: npx hackmyagent secure

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