Slack MCP server: channels, messages, threads, reactions, users, files, and scheduled messages
To add Slack to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 8 environment variables, listed below.
Install
npx -y @mindstone/mcp-server-slack@0.3.3Environment variables
SLACK_CONFIG_PATHSet in your MCP configSLACK_TEAM_IDSet in your MCP configSLACK_CLIENT_IDSet in your MCP configSLACK_CLIENT_SECRETSet in your MCP configSLACK_DISABLE_REFRESHSet in your MCP configSLACK_REQUEST_TIMEOUT_MSSet in your MCP configSLACK_MAX_RETRIESSet in your MCP configMCP_WORKSPACE_PATHSet in your MCP configInstall with your client
claude mcp add slack --env SLACK_CONFIG_PATH=<YOUR_SLACK_CONFIG_PATH> --env SLACK_TEAM_ID=<YOUR_SLACK_TEAM_ID> --env SLACK_CLIENT_ID=<YOUR_SLACK_CLIENT_ID> --env SLACK_CLIENT_SECRET=<YOUR_SLACK_CLIENT_SECRET> --env SLACK_DISABLE_REFRESH=<YOUR_SLACK_DISABLE_REFRESH> --env SLACK_REQUEST_TIMEOUT_MS=<YOUR_SLACK_REQUEST_TIMEOUT_MS> --env SLACK_MAX_RETRIES=<YOUR_SLACK_MAX_RETRIES> --env MCP_WORKSPACE_PATH=<YOUR_MCP_WORKSPACE_PATH> -- npx -y @mindstone/mcp-server-slack@0.3.3
Run this in a terminal to add the server to Claude Code.
What this does
Slack exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.
Requirements
This server needs the following environment variables to be set before it can run:
SLACK_CONFIG_PATH SLACK_TEAM_ID SLACK_CLIENT_ID SLACK_CLIENT_SECRET SLACK_DISABLE_REFRESH SLACK_REQUEST_TIMEOUT_MS SLACK_MAX_RETRIES MCP_WORKSPACE_PATH
Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).
Frequently asked questions
How do I install Slack?
Run the Claude Code command in the install section to add Slack to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.
Which clients work with Slack?
This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to Slack as well.
Does Slack need an API key?
Yes. Before it can run, set these environment variables: SLACK_CONFIG_PATH, SLACK_TEAM_ID, SLACK_CLIENT_ID, SLACK_CLIENT_SECRET, SLACK_DISABLE_REFRESH, SLACK_REQUEST_TIMEOUT_MS, SLACK_MAX_RETRIES, MCP_WORKSPACE_PATH. They go in the env block of your MCP config.
Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.
Is this your MCP server?
Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.
Add this badge to your README
Show visitors this server is listed in the ClaudeRules directory. The badge links straight to this listing.
[](https://clauderules.net/mcp/io-github-mindstone-mcp-server-slack)<a href="https://clauderules.net/mcp/io-github-mindstone-mcp-server-slack" target="_blank" rel="noopener noreferrer"><img src="https://clauderules.net/api/badge/io-github-mindstone-mcp-server-slack" alt="Listed on clauderules.net" /></a>More Files MCP servers
Awesome MCP Servers by punkpeye
A curated, community-maintained list of Model Context Protocol (MCP) servers, organized by category, with sections for MCP clients, tutorials, and community resources. The repository is a directory of production-ready and experimental servers that extend AI capabilities through file access, database connections, and API integrations; it is a list, not a runnable MCP server itself.
GitHub
Connect AI assistants to GitHub - manage repos, issues, PRs, and workflows through natural language.
eyaltoledano/claude-task-master
📇 ☁️ 🏠 - AI-powered task management system for AI-driven development. Features PRD parsing, task expansion, multi-provider support (Claude, OpenAI, Gemini, Perplexity, xAI), and selective tool loadi
FastMCP
🐍 - A high-level framework for building MCP servers in Python