Use Slack from MCP to find channels, read recent messages, and post updates.

What it can do

• list_channels: lists channels the bot can see, with paging and an option to include archived ones.
• fetch_channel_history: pulls recent messages from a channel, plus thread info and paging cursors.
• post_message: sends a new message to a channel or thread.

Setup

This server needs one env var:

• SLACK_BOT_TOKEN: your Slack bot token (xoxb-...). Create or open an app at api.slack.com/apps, install it to your workspace, then copy the Bot User OAuth Token from OAuth & Permissions. Make sure the bot can read the channels you care about and post in the ones you want to use.

Claude Desktop config

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": ["-y", "@universal-mcp-toolkit/server-slack@latest"],
      "env": {
        "SLACK_BOT_TOKEN": "xoxb-your-bot-token"
      }
    }
  }
}

Cursor config

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": ["-y", "@universal-mcp-toolkit/server-slack@latest"],
      "env": {
        "SLACK_BOT_TOKEN": "xoxb-your-bot-token"
      }
    }
  }
}

Quick example

Ask Claude: "List channels that match eng or release, pull the last 10 messages from the release channel, then draft a short update I can post about today's deploy."