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korotovsky/slack-mcp-server

MITAPI key required

📇 ☁️ - The most powerful MCP server for Slack Workspaces.

To add korotovsky/slack-mcp-server to Claude, run the install command below or copy the ready-made config for Claude Code, Claude Desktop, Cursor and VS Code further down. Restart your client after adding it and its tools show up in your next conversation. It needs 5 environment variables, listed below.

GoCommunication

Install

npx -y @modelcontextprotocol/inspector

Environment variables

SLACK_MCP_XOXC_TOKENSet in your MCP config
SLACK_MCP_XOXD_TOKENSet in your MCP config
SLACK_MCP_XOXP_TOKENSet in your MCP config
SLACK_MCP_XOXB_TOKENSet in your MCP config
SLACK_MCP_API_KEYSet in your MCP config

Install with your client

Terminal
claude mcp add korotovsky-slack --env SLACK_MCP_XOXC_TOKEN=<YOUR_SLACK_MCP_XOXC_TOKEN> --env SLACK_MCP_XOXD_TOKEN=<YOUR_SLACK_MCP_XOXD_TOKEN> --env SLACK_MCP_XOXP_TOKEN=<YOUR_SLACK_MCP_XOXP_TOKEN> --env SLACK_MCP_XOXB_TOKEN=<YOUR_SLACK_MCP_XOXB_TOKEN> --env SLACK_MCP_API_KEY=<YOUR_SLACK_MCP_API_KEY> -- npx -y @modelcontextprotocol/inspector

Run this in a terminal to add the server to Claude Code.

What this does

korotovsky/slack-mcp-server exposes a set of tools to Claude over the Model Context Protocol. After you add it to claude_desktop_config.json (snippet above) and restart Claude Desktop, those tools become callable inside any conversation.

Requirements

This server needs the following environment variables to be set before it can run:

SLACK_MCP_XOXC_TOKEN
SLACK_MCP_XOXD_TOKEN
SLACK_MCP_XOXP_TOKEN
SLACK_MCP_XOXB_TOKEN
SLACK_MCP_API_KEY

Set these via the env object in your MCP config (see claude_desktop_config.json snippet above).

Frequently asked questions

How do I install korotovsky/slack-mcp-server?

Run the Claude Code command in the install section to add korotovsky/slack-mcp-server to Claude Code, or copy the ready-made config for your client from the install section on this page. Restart your client afterwards and the tools appear in your next conversation.

Which clients work with korotovsky/slack-mcp-server?

This page carries setup and config for Claude Code, Claude Desktop, Cursor and VS Code. Any other MCP client that accepts a standard server config can connect to korotovsky/slack-mcp-server as well.

Does korotovsky/slack-mcp-server need an API key?

Yes. Before it can run, set these environment variables: SLACK_MCP_XOXC_TOKEN, SLACK_MCP_XOXD_TOKEN, SLACK_MCP_XOXP_TOKEN, SLACK_MCP_XOXB_TOKEN, SLACK_MCP_API_KEY. They go in the env block of your MCP config.

What license is korotovsky/slack-mcp-server under?

korotovsky/slack-mcp-server is listed under the MIT license.

Imported from the Official MCP Registry. The details above come from the registry entry; the maker can claim this listing to correct them, add docs, and see its traffic.

Is this your MCP server?

Claim this listing to see its traffic, fix details yourself, and skip the review queue on future updates.

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