social

Slack MCP Server

Check and send Slack messages without leaving your terminal. Search channels, catch up on threads, post updates, and dig through conversation history. Stealth mode means no admin approval required.

Pricing: free — Open source with 1,400+ GitHub stars. No Slack API fees.

View on GitHub

slack-mcp-server

Website

Features

Pull messages and thread replies from any channel you're in
Post messages to channels and DMs directly from Claude
Search your whole workspace by keyword
Fetch history by date range or a specific number of messages
Stealth mode — no Slack app install or admin approval needed
Handles DMs and group DMs too
Works on Enterprise Grid and GovSlack workspaces

Setup Instructions

1. Copy your Slack cookies (stealth mode) or set up a Slack app (OAuth mode) 2. Add this to your Claude MCP settings: ``

json
{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": ["-y", "slack-mcp-server"],
      "env": {
        "SLACK_TOKEN": "your_token",
        "SLACK_COOKIE": "your_cookie"
      }
    }
  }
}

`` 3. Restart Claude. You can read and post to Slack right from your terminal

Added: 2026-03-08