How to install gcs 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 gcs by running "gemini mcp add gcs npx -y gcs-google-mcp-server", then type /mcp to check it.

Built from the published package · server updated 11 days ago

Run the install command

In a terminal, run:

gemini mcp add gcs npx -y gcs-google-mcp-server

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

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

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Questions

Does gcs work in Gemini CLI?

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

gcs 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 gcs safe?

It scores 83 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.