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mcp/harbor
Claude Desktop

langfuse for Claude Desktop

com.pulsemcp/langfuse

MCP server for Langfuse LLM observability — trace and observation analysis.

client:Claude Desktop transport:stdio runtime:npm

Install langfuse in Claude Desktop

~/Library/Application Support/Claude/claude_desktop_config.json · windows: %APPDATA%\Claude\claude_desktop_config.json

Held in this page only — never stored, logged, or sent anywhere but back to your screen. 

{
  "mcpServers": {
    "langfuse": {
      "command": "npx",
      "args": [
        "-y",
        "langfuse-observability-mcp-server"
      ],
      "env": {
        "LANGFUSE_SECRET_KEY": "<LANGFUSE_SECRET_KEY>",
        "LANGFUSE_PUBLIC_KEY": "<LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_BASE_URL": "<LANGFUSE_BASE_URL>"
      }
    }
  }
}

Settings → Developer → Edit Config opens this file. Restart the app after saving. Claude Desktop docs

langfuse in other clients

langfuse MCP server