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

Built from the published package · server updated 2 days ago

1
Run the install command
In a terminal, run:
```
gemini mcp add jacobian npx -y jacobian
```
2
Check it
Inside Gemini CLI, type /mcp to list servers and tools.

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

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Questions

Does Jacobian work in Gemini CLI?

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

Jacobian 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 Jacobian safe?

It scores 83 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.

Run the install command

Check it

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Questions