How to install MCP UI Server 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 MCP UI Server by running "gemini mcp add mcp-ui-server npx -y @mcp-ui/server", then type /mcp to check it.

Built from the published package · server updated 8 months ago

Run the install command

In a terminal, run:

gemini mcp add mcp-ui-server npx -y @mcp-ui/server

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

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

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Questions

Does MCP UI Server work in Gemini CLI?

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

MCP UI Server 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 MCP UI Server safe?

It scores 68 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.