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@nodeskai/n8n-nodes-langfuse-prompt

v0.3.0

Published

n8n community node to fetch and render prompts from Langfuse

Downloads

12

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Links

Git

Maintainers

xzq-xuxzq-xunodesk_ainodesk_ai

Keywords

n8n-community-node-packagen8nlangfusepromptai

Readme

n8n-nodes-langfuse-prompt

This is an n8n community node. It lets you use Langfuse in your n8n workflows.

Langfuse is an open-source LLM engineering platform that helps with tracing, evaluations, prompt management, and metrics for LLM applications.

n8n is a fair-code licensed workflow automation platform.

Installation Operations Credentials Compatibility Usage Resources Version history

Installation

Follow the installation guide in the n8n community nodes documentation.

Operations

  • Langfuse Prompt: Fetch a prompt from Langfuse and render it with variables

Credentials

You need to authenticate with your Langfuse instance:

  1. Sign up for a Langfuse account or set up a self-hosted instance
  2. Get your Public Key and Secret Key from the Langfuse dashboard
  3. In n8n, create new credentials using the "Langfuse API (Basic Auth)" credential type
  4. Enter your:
    • Base URL: Your Langfuse instance URL ()
    • Public Key: Your Langfuse public key (used as username)
    • Secret Key: Your Langfuse secret key (used as password)

Compatibility

This node is compatible with n8n version 1.0.0 and above.

Usage

Langfuse Prompt Node

  1. Add the Langfuse Prompt node to your workflow
  2. Configure your Langfuse credentials
  3. Set the Prompt Name to fetch from Langfuse
  4. Optionally set a Prompt Label (defaults to "production")
  5. Provide Variables using n8n's assignment collection for template rendering
  6. Configure Keep Original on Error behavior (new in v0.2.0)

The node will:

  • Fetch the prompt template from Langfuse
  • Render the template with your provided variables using {{variable}} syntax
  • Return the rendered prompt along with metadata

Resources

Version history

0.2.0

New Features:

  • Added Keep Original on Error option for template rendering
  • Improved variable handling with proper n8n assignments support
  • Enhanced type safety with TypeScript interfaces

Improvements:

  • Better error handling with n8n standard error types
  • Cleaner code structure with extracted utility functions
  • More robust variable parsing for different input formats

0.1.0

Initial release with Langfuse Prompt node functionality.