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How to install Zen Devtools 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 Zen Devtools MCP by running "gemini mcp add zen-devtools-mcp npx -y zen-devtools-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 zen-devtools-mcp npx -y zen-devtools-mcp
  2. 2

    Check it

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

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

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Questions

Does Zen Devtools MCP work in Gemini CLI?

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

Zen Devtools 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 Zen Devtools MCP safe?

It scores 43 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.