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How to install Firebase Emulator MCP 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 Firebase Emulator MCP by running "gemini mcp add firebase-emulator-mcp npx -y @lglen/firebase-emulator-mcp", then type /mcp to check it.

Built from the published package · server updated 3 months ago

  1. 1

    Run the install command

    In a terminal, run:

    gemini mcp add firebase-emulator-mcp npx -y @lglen/firebase-emulator-mcp
  2. 2

    Check it

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

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

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Questions

Does Firebase Emulator MCP work in Gemini CLI?

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

Firebase Emulator MCP 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 Firebase Emulator MCP safe?

It scores 30 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.