Langfuse API

stdio

Langfuse public API (Cloud and self-hosted): traces, prompts, datasets and gated writes.

Getting Started

npx @getmcp/cli add io.github.rodrigorjsf/langfuse-api-mcp

Requires Node.js 18+. Community-contributed server. Review source before installing.

Claude Desktopguide →Vscodeguide →Cursorguide →Windsurfguide →

Required Environment Variables

LANGFUSE_PUBLIC_KEY
The project's public key (pk-lf-...).
LANGFUSE_SECRET_KEY
The project's secret key (sk-lf-...).
LANGFUSE_BASE_URL
Your Langfuse host, e.g. https://cloud.langfuse.com; https only, http only for localhost.

Configuration

Config file: ~/Library/Application Support/Claude/claude_desktop_config.json

JSON

{
  "mcpServers": {
    "io.github.rodrigorjsf/langfuse-api-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "langfuse-api-mcp"
      ],
      "env": {
        "LANGFUSE_PUBLIC_KEY": "",
        "LANGFUSE_SECRET_KEY": "",
        "LANGFUSE_BASE_URL": "",
        "LANGFUSE_CA_CERT": ""
      }
    }
  }
}

Claude Desktop MCP documentation