How to install Server Slack in Gemini CLI

Gemini CLI was replaced by Antigravity CLI in June 2026. On an enterprise licence or paid API key you can still install Server Slack by running "gemini mcp add server-slack npx -y @fizzyhere/server-slack", then type /mcp to check it.

Built from the published package · server updated 17 months ago

Run the install command

In a terminal, run:

gemini mcp add server-slack npx -y @fizzyhere/server-slack

2
Check it
Inside Gemini CLI, type /mcp to list servers and tools.

MCP servers run with your permissions. If Server Slack needs an API key, add it under env in the config. Check its README.

Install Server Slack in another app

Claude Code Claude Desktop Cursor VS Code Windsurf Codex Antigravity CLI ChatGPT

Similar servers

Vexa Vexa-ai

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

AAA Remote 2.9k

TradingMCPatilaahmettaner

Market analysis for AI assistants: screeners, multi-timeframe analysis, backtests, in-chat charts.

AAA Remote 5.1k

Agent-Native BrainBuilderIO

Cited company knowledge from Slack, meetings, transcripts, and decisions

AAA Remote 7.4k

Questions

Does Server Slack work in Gemini CLI?

Yes. Gemini CLI supports local and remote mcp servers, extensions (legacy), and Server Slack installs with the steps above.

Server Slack does not show up in Gemini CLI. What now?

Restart Gemini CLI fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.

Is Server Slack safe?

It scores 27 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.