How to install Langfuse 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 Langfuse MCP Server by running "gemini mcp add langfuse-mcp-server npx -y langfuse-mcp-server", then type /mcp to check it.

Built from the published package · server updated 20 months ago

Run the install command

In a terminal, run:

gemini mcp add langfuse-mcp-server npx -y langfuse-mcp-server

2
Check it
Inside Gemini CLI, type /mcp to list servers and tools.

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

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Questions

Does Langfuse MCP Server work in Gemini CLI?

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

Langfuse 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 Langfuse MCP Server safe?

It scores 34 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.