AI assistant for n8n docs: answers questions using RAG

This automation template builds an AI assistant that answers questions about n8n documentation using a Retrieval-Augmented Generation (RAG) system. Answers are generated strictly from indexed, up-to-date documentation, eliminating hallucinations and ensuring factual accuracy. Ideal for developers, technical teams, and automation engineers.

## Who it´s for
- Developers actively using n8n who need fast access to accurate documentation.
- Technical specialists building internal AI assistants for knowledge bases.
- Teams prototyping or deploying RAG systems with real-world data.
- Automation practitioners learning vector databases and LangChain within n8n.

## What the automation does
- Scrapes official n8n documentation via HTTP requests and HTML parsers.
- Splits text into chunks, converts them into embeddings using Google Gemini, and stores them in Supabase’s pgvector.
- On user query via a web chat, retrieves the most relevant context fragments.
- Generates precise answers using a LangChain RAG agent powered by Gemini 2.5 Flash.
- Supports manual and scheduled re-indexing of documentation.
- Sends periodic pings to Supabase to keep free-tier projects active.

## What´s included
- Ready-to-use n8n workflow with full RAG logic.
- Trigger handling: webhook (user question), manual trigger (docs update), cron (keep-alive).
- Integrations with Supabase, Google Gemini API, n8n Documentation, and a web chat interface.
- Basic setup and adaptation guide.

## Requirements for setup
- Active n8n instance with workflow editing access.
- Supabase project with pgvector enabled and a table for embeddings.
- Google Gemini API key for embedding generation and LLM responses.
- Public web interface (e.g., n8n form or external chat) to receive user queries.

## Benefits and outcomes
- Reduces time to find documentation details from minutes to seconds.
- Eliminates errors due to outdated or incorrect knowledge.
- Accelerates onboarding of new team members with AI-powered guidance.
- Full data control — all processing happens in your environment.
- Ready-to-deploy RAG solution for testing on real technical content.

## Important: template only
Important: you are purchasing a ready-made automation workflow template only. Rollout into your infrastructure, connecting specific accounts and services, 1:1 setup help, custom adjustments for non-standard stacks and any consulting support are provided as a separate paid service at an individual rate. To discuss custom work or 1:1 help, contact via Telegram: @gleb923.