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How to install Serena MCP: the IDE for your agent 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 Serena MCP: the IDE for your agent by running "gemini mcp add serena-mcp-the-ide-for-your-agent uvx serena-agent", then type /mcp to check it.

Built from the published package · server updated 2 days ago

  1. 1

    Run the install command

    In a terminal, run:

    gemini mcp add serena-mcp-the-ide-for-your-agent uvx serena-agent
  2. 2

    Check it

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

MCP servers run with your permissions. If Serena MCP: the IDE for your agent needs an API key, add it under env in the config. Check its README.

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Questions

Does Serena MCP: the IDE for your agent work in Gemini CLI?

Yes. Gemini CLI supports local and remote mcp servers, extensions (legacy), and Serena MCP: the IDE for your agent installs with the steps above.

Serena MCP: the IDE for your agent does not show up in Gemini CLI. What now?

Restart Gemini CLI fully, check the JSON is valid, and make sure uv (for uvx) is installed. See common MCP errors and fixes.

Is Serena MCP: the IDE for your agent safe?

It scores 88 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.