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

Built from the published package · server updated yesterday

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

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

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Questions

Does Castov work in Gemini CLI?

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

Castov 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 Castov safe?

It scores 80 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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