Langfuse Prompt Management MCP Server

@langfuse

代码仓库主页

基本信息

分类

其他

许可证

MIT

传输方式

stdio

作者

langfuse

关于 Langfuse Prompt Management MCP Server

Model Context Protocol (MCP) Server for Langfuse Prompt Management. This server allows you to access and manage your Langfuse prompts through the Model Context Protocol.

#mcp #llm#prompting#llmops #prompt-management #langfuse #model-context-protocol

Langfuse Prompt Management MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "mcp-server-langfuse": {
      "command": "npx",
      "args": [
        "@modelcontextprotocol/inspector",
        "node",
        "./build/index.js"
      ]
    }
  }
}

Langfuse Prompt Management MCP Server 工具

List available prompts

Retrieve and compile a specific prompt

概览

What is Langfuse Prompt Management MCP Server?

A Model Context Protocol (MCP) server that integrates with Langfuse Prompt Management, enabling LLM clients like Claude Desktop to discover, retrieve, and compile Langfuse prompts through the MCP interface. It is designed for developers using Langfuse to manage prompt versions.

How to use Langfuse Prompt Management MCP Server?

Install dependencies (npm install), build the server (npm run build), then add it to your MCP client’s configuration (e.g., claude_desktop_config.json or Cursor) with your Langfuse API keys and base URL set as environment variables. The server exposes both standard MCP prompts and equivalent tools for broader client compatibility.

Key features of Langfuse Prompt Management MCP Server

Implements MCP Prompts specification (prompts/list, prompts/get)
Also provides tools (get-prompts, get-prompt) for non-prompt-capable clients
Transforms Langfuse text and chat prompts into MCP prompt objects
Compiles prompts with provided variables
Supports optional cursor-based pagination for listing prompts

Use cases of Langfuse Prompt Management MCP Server

Retrieve and compile production prompts from Langfuse inside AI chat assistants
Manage and iterate prompt versions without modifying client code
Integrate Langfuse prompt management with MCP-compatible LLM tools like Claude Desktop

常见问题

What prompts are accessible?

Only prompts with the `production` label in Langfuse are returned.

What are the runtime dependencies?

Node.js is required. You need a Langfuse account with a public and secret API key.

Can I use a self-hosted Langfuse?

Yes, by setting the `LANGFUSE_BASEURL` environment variable to your self-hosted instance.

How does authentication work?

Authentication uses the `LANGFUSE_PUBLIC_KEY` and `LANGFUSE_SECRET_KEY` environment variables.

Does the server support chat prompts?

Yes, both Langfuse text and chat prompts are transformed into MCP prompt objects.

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