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How to install Supergateway 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 Supergateway by running "gemini mcp add supergateway npx -y supergateway", then type /mcp to check it.

Built from the published package · server updated yesterday

  1. 1

    Run the install command

    In a terminal, run:

    gemini mcp add supergateway npx -y supergateway
  2. 2

    Check it

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

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

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Questions

Does Supergateway work in Gemini CLI?

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

Supergateway 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 Supergateway safe?

It scores 94 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.