n8n-nodes-prompt-library

n8n community node to fetch and render prompts from n8n-library's prompt versioning system.

Features

• Get Prompt - Fetch a prompt by slug (latest or specific version)
• List Prompts - List all published prompts
• Render Prompt - Fetch a prompt and replace {{variable}} template variables with values
• AI Tool compatible - usableAsTool: true so AI agents can use this node

Installation

In n8n (community nodes)

1. Go to Settings > Community Nodes
2. Install n8n-nodes-prompt-library

Manual installation

cd ~/.n8n/custom
npm install n8n-nodes-prompt-library

Credentials

| Field | Description | |-------|-------------| | Instance URL | Base URL of your n8n-library instance (e.g. https://library.example.com) | | API Key | API key from n8n-library Settings > API Keys (n8nlib_...) |

Operations

Get Prompt

Fetches a single prompt by its slug. Optionally specify a version number (0 = latest).

List Prompts

Returns all published prompts with their metadata (name, slug, description, variables, category, tags).

Render Prompt

Fetches a prompt and replaces template variables. For example, if the prompt contains {{customer_name}}, provide a variable with name customer_name and value Alice to get the rendered output.

Example Usage

[Trigger] -> [Prompt Library: Render Prompt] -> [OpenAI Chat]

Fetch a versioned prompt with variables, then pass the rendered content to an LLM.