rwatts3/slack-mcp-go

Slack MCP Server (Go)

This project is a Model Context Protocol (MCP) server for Slack, written in Go. It allows you to interact with the Slack API through a set of predefined tools.

Prerequisites

• Go 1.18 or later
• A Slack Bot Token

Installation

You can install the server using go install:

go install github.com/rwatts3/slack-mcp-go@latest

Setup

1. Set the Slack Bot Token:

   Export your Slack bot token as an environment variable:

   export SLACK_BOT_TOKEN="your-slack-bot-token"
   

2. Configure your MCP client:

   Add the server to your MCP client's configuration file.

   VSCode Copilot

   For VSCode Copilot, add the following to your settings.json file. You can open this file by running the "Preferences: Open User Settings (JSON)" command in VSCode.

   Make sure the command points to the location of your slack-mcp-go binary. If you used go install, this will typically be in your GOPATH/bin. You can find your GOPATH by running go env GOPATH.

   {
     "github.copilot.mcp.servers": {
       "slack-mcp-go": {
         "command": ["/Users/rwatts/go/bin/slack-mcp-go"],
         "args": [],
         "type": "stdio",
         "env": {
           "SLACK_BOT_TOKEN": "your-slack-bot-token"
         }
       }
     }
   }
   

   Claude Desktop

   For Claude Desktop, create or edit the ~/.anthropic/mcp_servers.json file.

   Make sure the command points to the location of your slack-mcp-go binary. If you used go install, this will typically be in your GOPATH/bin. You can find your GOPATH by running go env GOPATH.

   [
     {
       "name": "slack-mcp-go",
       "command": ["/Users/rwatts/go/bin/slack-mcp-go"],
       "transport": "stdio",
       "env": {
         "SLACK_BOT_TOKEN": "your-slack-bot-token"
       }
     }
   ]
   

3. Run the server:

   The server will be started automatically by your MCP client when a tool is called.

Available Tools

The following tools are available through the MCP server:

Logging

The server logs to /tmp/slack-mcp-go.log.