How to install Host Copilot 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 Host Copilot by running "gemini mcp add host-copilot npx -y @metaharness/host-copilot", then type /mcp to check it.

Built from the published package · server updated 2 days ago

Run the install command

In a terminal, run:

gemini mcp add host-copilot npx -y @metaharness/host-copilot

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

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

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Questions

Does Host Copilot work in Gemini CLI?

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

Host Copilot 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 Host Copilot safe?

It scores 86 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.