Slack MCP Server

Post messages, read channels, manage threads.

List channels, read history, post messages and reply in threads. Useful for agents that report results where the team already works instead of in a terminal nobody is watching.

Install Slack MCP Server

Paste this into your MCP client config — Claude Desktop, Claude Code, Cursor, VS Code and Windsurf all read the same shape — then restart the client.

npx -y @modelcontextprotocol/server-slack

Config for each MCP client

The same server, in the shape each client expects. Copy the block for yours, restart it, and Slack MCP Server appears in your next session.

Claude Desktop

claude_desktop_config.json
{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ]
    }
  }
}

Full Claude Desktop setup guide

Claude Code

terminal
claude mcp add slack -- npx -y @modelcontextprotocol/server-slack

Full Claude Code setup guide

Cursor

.cursor/mcp.json
{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ]
    }
  }
}

Full Cursor setup guide

VS Code

.vscode/mcp.json
{
  "servers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ]
    }
  }
}

Full VS Code setup guide

Windsurf

mcp_config.json
{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-slack"
      ]
    }
  }
}

Full Windsurf setup guide

Details

Repository
https://github.com/modelcontextprotocol/servers
Homepage
https://github.com/modelcontextprotocol/servers
Category
Communication
Stars
3100
Installs per month
38000
Last checked

Frequently asked questions

How do I install Slack MCP Server?

Add it to your MCP client's config with the command `npx -y @modelcontextprotocol/server-slack`, or paste the ready-made JSON block above into Claude Desktop, Cursor, VS Code or Windsurf. Claude Code users can run `claude mcp add slack` instead. Restart the client and the tools appear in the next session.

Does Slack MCP Server need an API key?

No credential is recorded for this listing, which usually means it runs against something local or public rather than an authenticated API. Check the repository's README before assuming, and if you find otherwise, tell us and we will correct the listing.

Which clients work with Slack MCP Server?

Any MCP client. Claude Desktop, Claude Code, Cursor, VS Code with Copilot, Windsurf, Zed, Cline and Continue all speak the Model Context Protocol, so a server written once works in all of them — only the location of the config file differs.

Is Slack MCP Server free?

The server itself is free and open source, and you run it yourself. If it connects to a paid third-party API, that service's pricing applies to the calls it makes.

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