Support chatbot with PDF search from Google Drive and…

This automation delivers accurate, context-aware responses to user queries via a chat interface by leveraging a vector-based knowledge base. Built on a LangChain RAG agent with Supabase vector search, it retrieves relevant data from indexed PDFs, generates answers using OpenAI, and cites sources. Designed for support teams and developers integrating AI-driven knowledge systems into n8n workflows.

## Who it´s for
- Technical support specialists using chatbots for customer assistance
- Companies needing automated responses based on internal documentation
- Developers implementing RAG systems with n8n and LangChain
- Support teams managing large volumes of PDF documentation

## What the automation does
- Receives user queries through a chat interface
- Uses a LangChain RAG agent to search for relevant content in a Supabase vector database
- Generates natural-language responses via OpenAI while maintaining conversation context
- Extracts text from PDFs stored in Google Drive and indexes them into the knowledge base
- Applies Cohere Reranker to improve relevance scoring of retrieved chunks
- Ensures source citation in all generated answers

## What´s included
- Ready-to-use n8n workflow with full RAG logic
- Trigger handling for chat messages and manual document uploads
- Integrations with Google Drive, Supabase, OpenAI API, and Cohere API
- Basic written instructions for deployment and adaptation

## Requirements for setup
- n8n instance with external API access
- Google Drive account with read access to PDF files
- Supabase project with vector database enabled
- API keys for OpenAI and Cohere
- Familiarity with n8n and JSON configuration

## Benefits and outcomes
- Reduces time spent searching through technical documentation
- Improves response accuracy and consistency across support interactions
- Automatically updates knowledge base when new PDFs are added
- Maintains dialogue context for more natural conversations
- Source citations increase trust in AI-generated answers
- Scalable solution without manual FAQ creation

## 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 в чате.