Langfuse MCP

Langfuse MCP is a local MCP server: Langfuse MCP server for accessing and analyzing telemetry data via natural language. Install it from pypi as langfuse-mcp.

Claude CodeCodexAntigravity

commandprompt

Terminal

claude mcp add langfuse-mcp -e LANGFUSE_PUBLIC_KEY=... -e LANGFUSE_SECRET_KEY=... -e LANGFUSE_HOST=... -e LANGFUSE_MCP_READ_ONLY=... -- uvx langfuse-mcp

Run in your project folder. Add --scope user to use it everywhere.

Add to claude_desktop_config.json or .cursor/mcp.json.

{
  "mcpServers": {
    "langfuse-mcp": {
      "command": "uvx",
      "args": [
        "langfuse-mcp"
      ],
      "env": {
        "LANGFUSE_PUBLIC_KEY": "...",
        "LANGFUSE_SECRET_KEY": "...",
        "LANGFUSE_HOST": "...",
        "LANGFUSE_MCP_READ_ONLY": "..."
      }
    }
  }
}

Fill in the environment variables with your own credentials.

• Runtime: Python with uv (runs with uvx).
• MCP client: Claude Code, Codex, Antigravity, Claude Desktop, Cursor or any other client that speaks MCP over stdio.
• Environment variables: LANGFUSE_PUBLIC_KEY, LANGFUSE_SECRET_KEY, LANGFUSE_HOST, LANGFUSE_MCP_READ_ONLY