Slack

About Slack

Use Slack with your agent

claude mcp add slack -- npx -y @mindstone/mcp-server-slack

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": [
        "-y",
        "@mindstone/mcp-server-slack"
      ]
    }
  }
}

Frequently asked questions

What is Slack?

Slack is an MCP (Model Context Protocol) server by mindstone in the Communication category. Slack MCP server: channels, messages, threads, reactions, users, files, and scheduled messages

How do I connect Slack to Claude, Cursor, or another MCP client?

Install Slack from its npm package (@mindstone/mcp-server-slack) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is Slack open source?

Yes — the source code is public at github.com/mindstone/mcp-servers, with 8 GitHub stars.

Can AI agents pay to use Slack?

Not yet through Loomal — Slack is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.