一个MCP（模型上下文协议）服务器，用于访问Slack API。该服务器允许AI助手通过标准化界面与Slack API交互。

运输支持

该服务器支持传统和现代MCP传输方式：

• Stdio Transport（默认）：基于进程的本地集成通信
• 可流式HTTP传输：基于HTTP的Web应用和远程客户端通信

特色

可用工具：

• slack_list_channels - 在工作区中列出带有分页的公共通道
• slack_post_message - 向Slack频道发布新消息
• slack_reply_to_thread - 回复Slack中的特定消息线程
• slack_add_reaction - 在消息中添加反应表情
• slack_get_channel_history - 获取频道的最新消息
• slack_get_thread_replies - 在消息线程中获取所有回复
• slack_get_users - 检索工作区中所有用户的基本配置文件信息
• slack_get_user_profiles - 批量获取多个用户的配置文件信息（对批处理高效）
• slack_search_messages - 在工作区中搜索带有强大筛选功能的消息：
• 基础查询搜索

slack-mcp-server

A MCP(Model Context Protocol) server for accessing Slack API. This server allows AI assistants to interact with the Slack API through a standardized interface.

Transport Support

This server supports both traditional and modern MCP transport methods:

• Stdio Transport (default): Process-based communication for local integration
• Streamable HTTP Transport: HTTP-based communication for web applications and remote clients

Features

Available tools:

• slack_list_channels - List public channels in the workspace with pagination
• slack_post_message - Post a new message to a Slack channel
• slack_reply_to_thread - Reply to a specific message thread in Slack
• slack_add_reaction - Add a reaction emoji to a message
• slack_get_channel_history - Get recent messages from a channel
• slack_get_thread_replies - Get all replies in a message thread
• slack_get_users - Retrieve basic profile information of all users in the workspace
• slack_get_user_profiles - Get multiple users’ profile information in bulk (efficient for batch operations)
• slack_search_messages - Search for messages in the workspace with powerful filters:
  • Basic query search
  • Location filters: in_channel
  • User filters: from_user, with
  • Date filters: before (YYYY-MM-DD), after (YYYY-MM-DD), on (YYYY-MM-DD), during (e.g., “July”, “2023”)
  • Content filters: has (emoji reactions), is (saved/thread)
  • Sorting options by relevance score or timestamp

Quick Start

Installation

npm install @ubie-oss/slack-mcp-server

NOTE: Its now hosted in GitHub Registry so you need your PAT.

Configuration

You need to set the following environment variables:

• SLACK_BOT_TOKEN: Slack Bot User OAuth Token
• SLACK_USER_TOKEN: Slack User OAuth Token (required for some features like message search)
• SLACK_SAFE_SEARCH (optional): When set to true, automatically excludes private channels, DMs, and group DMs from search results. This is enforced server-side and cannot be overridden by clients.

You can also create a .env file to set these environment variables:

SLACK_BOT_TOKEN=xoxb-your-bot-token
SLACK_USER_TOKEN=xoxp-your-user-token
SLACK_SAFE_SEARCH=true  # Optional: Enable safe search mode

Usage

Start the MCP server

Stdio Transport (default):

npx @ubie-oss/slack-mcp-server

Streamable HTTP Transport:

npx @ubie-oss/slack-mcp-server -port 3000

You can also run the installed module with node:

# Stdio transport
node node_modules/.bin/slack-mcp-server

# HTTP transport  
node node_modules/.bin/slack-mcp-server -port 3000

Command Line Options:

• -port : Start with Streamable HTTP transport on specified port
• -h, --help: Show help message

Client Configuration

For Stdio Transport (Claude Desktop, etc.):

{
  "slack": {
    "command": "npx",