Langfuse MCP Server

What the code does

We read the source, 8 h ago · rules 3dff92dd89df

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

этот файл ставится пользователю, но в репозитории его нет

      const initProcess = spawn(this.claudeCodePath, args, {

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Connect this server

This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.

claude mcp add langfuse -- npx -y langfuse-observability-mcp-server

{
  "mcpServers": {
    "langfuse": {
      "args": [
        "-y",
        "langfuse-observability-mcp-server"
      ],
      "command": "npx"
    }
  }
}

[mcp_servers.langfuse]
command = "npx"
args = ["-y", "langfuse-observability-mcp-server"]

{
  "mcpServers": {
    "langfuse": {
      "args": [
        "-y",
        "langfuse-observability-mcp-server"
      ],
      "command": "npx"
    }
  }
}

{
  "mcpServers": {
    "langfuse": {
      "args": [
        "-y",
        "langfuse-observability-mcp-server"
      ],
      "command": "npx"
    }
  }
}

This one needs environment variables set before it will start: LANGFUSE_SECRET_KEY (Langfuse secret key for authentication.), LANGFUSE_PUBLIC_KEY (Langfuse public key for authentication.), LANGFUSE_BASE_URL (Langfuse API base URL.). The author declared them in the registry entry; get the values from the project itself.