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@cloud9-labs/mcp-slack

by cloud9-labs
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@cloud9-labs/mcp-slack

MCP server for Slack API integration - 14 messaging and channel management tools.

Installation

{
  "mcpServers": {
    "slack": {
      "command": "npx",
      "args": ["-y", "@cloud9-labs/mcp-slack"],
      "env": {
        "SLACK_BOT_TOKEN": "xoxb-your-bot-token"
      }
    }
  }
}

Related MCP server: Slack MCP Server

Tools

Tool

Description

slack_post_message

Send a message to a Slack channel

slack_update_message

Edit an existing message

slack_delete_message

Delete a message from a channel

slack_list_channels

List all channels in the workspace

slack_get_channel_info

Get detailed information about a channel

slack_get_channel_history

Retrieve message history from a channel

slack_get_replies

Get threaded replies for a message

slack_join_channel

Join a Slack channel

slack_list_users

List all users in the workspace

slack_get_user_info

Get user profile information

slack_add_reaction

Add emoji reaction to a message

slack_remove_reaction

Remove emoji reaction from a message

slack_search_messages

Search messages across channels

slack_upload_file

Upload files to Slack

Configuration

Set your Slack bot token as an environment variable:

export SLACK_BOT_TOKEN="xoxb-..."

To create a Slack bot:

  1. Go to https://api.slack.com/apps

  2. Create a new app

  3. Enable Bot User OAuth Token

  4. Grant required scopes (messages:write, channels:read, users:read, etc.)

  5. Copy the Bot User OAuth Token

License

MIT

This server cannot be installed

A
license - permissive license
-
quality - not tested
D
maintenance

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Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
Commit activity

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