Langfuse API MCP Server

io.github.rodrigorjsf/langfuse-api-mcp

Repository Registry

What is the Langfuse API MCP server?

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

How to install Langfuse API

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

LANGFUSE_PUBLIC_KEY
required
secret
The project's public key (pk-lf-...).
LANGFUSE_SECRET_KEY
required
secret
The project's secret key (sk-lf-...).
LANGFUSE_BASE_URL
required
Your Langfuse host, e.g. https://cloud.langfuse.com; https only, http only for localhost.
LANGFUSE_CA_CERT
Optional PEM file with your corporate or private CA, added to the system trust store.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "langfuse-api-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "langfuse-api-mcp"
      ],
      "env": {
        "LANGFUSE_PUBLIC_KEY": "<YOUR_LANGFUSE_PUBLIC_KEY>",
        "LANGFUSE_SECRET_KEY": "<YOUR_LANGFUSE_SECRET_KEY>",
        "LANGFUSE_BASE_URL": "<YOUR_LANGFUSE_BASE_URL>",
        "LANGFUSE_CA_CERT": "<YOUR_LANGFUSE_CA_CERT>"
      }
    }
  }
}