Langfuse Prompt Management MCP Server
About
A Model Context Protocol (MCP) server that lets you access and manage your Langfuse prompts directly from MCP-compatible clients like Claude Desktop and Cursor. It bridges Langfuse’s prompt management system with the MCP ecosystem for developers.
Details
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- MCP-Mirror
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Jump to
- Implements MCP Prompts specification for prompt discovery and retrieval.
- prompts/list with optional cursor‑based pagination.
- prompts/get transforms Langfuse prompts (text and chat) into MCP prompt objects.
- Exports tools (get-prompts, get-prompt) for clients without prompt capability.
- All prompts are compiled with provided variables.
Setting up with Highlight
This MCP is not yet compatible with Highlight’s one-click setup. However, you can still use it with Highlight by following these steps:
- Download and install Highlight from highlightai.com/download
- Navigate to the plugins tab and select "Add Custom Plugin"
-
Configure the plugin with the settings below
Plugin Name
Langfuse Prompt Management MCP ServerCommand (node, npx, python, etc.)Please refer to the README for specific instructions on how to obtain API keys or other required environment variables.
- Enable "Start Automatically" if you want the plugin to start when Highlight launches
From the repository
Install and build with npm install && npm run build, then add the server to your MCP client configuration (e.g., claude_desktop_config.json) with the environment variables LANGFUSE_PUBLIC_KEY, LANGFUSE_SECRET_KEY, and LANGFUSE_BASEURL.
Claude Desktop / Cursor
Paste into your MCP client config file to install this server.
{
"mcpServers": {
"langfuse prompt management mcp server": {
"langfuse_mcp-server-langfuse": {
"command": "npx",
"args": [
"@modelcontextprotocol/inspector",
"node",
"./build/index.js"
]
}
}
}
}McpServers
{
"langfuse_mcp-server-langfuse": {
"command": "npx",
"args": [
"@modelcontextprotocol/inspector",
"node",
"./build/index.js"
]
}
}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.
Demo
Quick demo of Langfuse Prompts MCP in Claude Desktop (_unmute for voice-over explanations_):
https://github.com/user-attachments/assets/61da79af-07c2-4f69-b28c-ca7c6e606405
Features
MCP Prompt
This server implements the MCP Prompts specification for prompt discovery and retrieval.
- prompts/list: List all available prompts
- Optional cursor-based pagination
- Returns prompt names and their required arguments, limitation: all arguments are assumed to be optional and do not include descriptions as variables do not have specification in Langfuse
- Includes next cursor for pagination if there's more than 1 page of prompts
- prompts/get: Get a specific prompt
- Transforms Langfuse prompts (text and chat) into MCP prompt objects
- Compiles prompt with provided variables
Tools
To increase compatibility with other MCP clients that do not support the prompt capability, the server also exports tools that replicate the functionality of the MCP Prompts.
- get-prompts: List available prompts
- Optional cursor parameter for pagination
- Returns a list of prompts with their arguments
- get-prompt: Retrieve and compile a specific prompt
- Required name parameter: Name of the prompt to retrieve
- Optional arguments parameter: JSON object with prompt variables
Development
```bash
npm install
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