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How to install Sly AI MCP Server 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 Sly AI MCP Server by running "gemini mcp add sly-ai-mcp-server npx -y @sly_ai/mcp-server", then type /mcp to check it.

Built from the published package · server updated 15 days ago

  1. 1

    Run the install command

    In a terminal, run:

    gemini mcp add sly-ai-mcp-server npx -y @sly_ai/mcp-server
  2. 2

    Check it

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

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

Install Sly AI MCP Server in another app

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Questions

Does Sly AI MCP Server work in Gemini CLI?

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

Sly AI MCP Server 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 Sly AI MCP Server safe?

It scores 64 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.