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Slack

io.github.aaronsb/slack-mcp · version 2.8.1

Community listing. Not installed or verified by cosmic-mcp. Read the source and its permissions before you run it.

Read and write Slack with session tokens — no OAuth, no bot, no admin approval.

https://github.com/aaronsb/slack-mcp

Quick facts

  • Listing: Community
  • Published Oct 21, 03:29 UTC
  • Transport: stdio
  • Package: npm @aaronsb/slack-mcp 2.8.1
  • Listed by cosmic-mcp: Nov 9, 04:25 UTC

Chat and messaging Identity and auth

Setup snippets

Generated from the registry entry. cosmic-mcp has not run or reviewed this server; values in angle brackets are yours to fill in.

Run it locally (npm)

npx -y '@aaronsb/[email protected]'

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "slack-mcp": {
      "args": [
        "-y",
        "@aaronsb/[email protected]"
      ],
      "command": "npx",
      "env": {
        "SLACK_MCP_XOXC_TOKEN": "<your slack mcp xoxc token>",
        "SLACK_MCP_XOXD_TOKEN": "<your slack mcp xoxd token>"
      }
    }
  }
}

Claude Code

claude mcp add 'slack-mcp' -- npx -y '@aaronsb/[email protected]'

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "slack-mcp": {
      "args": [
        "-y",
        "@aaronsb/[email protected]"
      ],
      "command": "npx",
      "env": {
        "SLACK_MCP_XOXC_TOKEN": "<your slack mcp xoxc token>",
        "SLACK_MCP_XOXD_TOKEN": "<your slack mcp xoxd token>"
      }
    }
  }
}

VS Code (.vscode/mcp.json)

{
  "servers": {
    "slack-mcp": {
      "args": [
        "-y",
        "@aaronsb/[email protected]"
      ],
      "command": "npx",
      "env": {
        "SLACK_MCP_XOXC_TOKEN": "<your slack mcp xoxc token>",
        "SLACK_MCP_XOXD_TOKEN": "<your slack mcp xoxd token>"
      },
      "type": "stdio"
    }
  }
}

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