How to install Langfuse MCP in Cursor
To install Langfuse MCP in Cursor, click "Add to Cursor" on this page or paste the "langfuse-mcp" block into ~/.cursor/mcp.json, then check for a green dot in Cursor Settings under MCP.
Built from the published package · server updated 12 days ago
- 1
One click (fastest)
Click the button to open Cursor with this server ready to add.
Add Langfuse MCP to Cursor - 2
Or add it by hand
Open Cursor Settings, then MCP, then Add new MCP server, or edit mcp.json directly and paste:
{ "mcpServers": { "langfuse-mcp": { "command": "uvx", "args": [ "langfuse-mcp" ], "env": { "LANGFUSE_PUBLIC_KEY": "YOUR_LANGFUSE_PUBLIC_KEY", "LANGFUSE_SECRET_KEY": "YOUR_LANGFUSE_SECRET_KEY" } } } } - 3
Turn it on
In Settings, MCP, make sure the server shows a green dot. Use it in Agent mode.
Config file: ~/.cursor/mcp.json (all projects) or .cursor/mcp.json (this project)
MCP servers run with your permissions. If Langfuse MCP needs an API key, add it under env in the config. Check its README.
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Questions
Does Langfuse MCP work in Cursor?
Yes. Cursor supports local and remote mcp servers, and Langfuse MCP installs with the steps above.
Langfuse MCP does not show up in Cursor. What now?
Restart Cursor fully, check the JSON is valid, and make sure uv (for uvx) is installed. See common MCP errors and fixes.
Is Langfuse MCP safe?
It scores 78 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.
