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How to install Waymark Engine 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 Waymark Engine by running "gemini mcp add waymark-engine npx -y waymark-engine", then type /mcp to check it.

Built from the published package · server updated 3 days ago

  1. 1

    Run the install command

    In a terminal, run:

    gemini mcp add waymark-engine npx -y waymark-engine
  2. 2

    Check it

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

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

Install Waymark Engine in another app

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Questions

Does Waymark Engine work in Gemini CLI?

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

Waymark Engine 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 Waymark Engine safe?

It scores 81 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.