# AI chat to query PDF and text documents in Supabase: ask questions, get answers
This automation enables AI-powered document search by indexing files stored in Supabase. Users can ask questions via chat and receive accurate answers derived from the content of PDFs and text files. Ideal for teams needing instant access to knowledge without manual file scanning.
## Who it´s for
- Developers implementing AI-powered document search
- Support teams using knowledge bases to respond to clients
- Project managers storing documentation in the cloud and needing fast information retrieval
- Startups automating internal file workflows without building a backend
## What the automation does
- Fetches PDF and text files from private Supabase storage
- Extracts text, splits it into chunks, and generates embeddings using OpenAI
- Stores vector representations in Supabase vector database
- Triggers a LangChain agent upon receiving a chat message to retrieve relevant context
- Generates and returns AI-powered responses based on retrieved content
- Automatically updates the knowledge base when new files are added
## What´s included
- Ready-to-use n8n workflow
- Trigger logic: manual and chat message received
- Integrations with Supabase, OpenAI, and HTTP API
- Basic written instructions for deployment and adaptation
## Requirements for setup
- n8n instance with external API access
- Supabase account with enabled vector store and file storage
- OpenAI API key with access to embedding models
- Chat interface compatible with HTTP triggers (e.g., Telegram bot or web-based chat)
## Benefits and outcomes
- Eliminates manual document searching
- Reduces information lookup time to seconds
- Ensures response accuracy through contextual analysis
- Scales seamlessly with growing documentation volume
- No need to build backend or ML infrastructure
- Supports dynamic knowledge base updates
## 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 chat
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