Chat with PDF/MD/TXT from Google Drive via GraphRAG in…

This workflow turns files from a Google Drive folder into an interactive knowledge base accessible via chat. Using GraphRAG and knowledge represented as a graph in InfraNodus, the AI agent answers user questions based solely on the content of uploaded documents — no vector database required.

## Who it´s for
- Researchers managing large volumes of scientific papers and textual data.
- Analysts who need fast access to information in PDF and Markdown reports.
- Teams using documentation for decision-making but avoiding complex RAG setups.
- Educators and students organizing course materials.
- Support specialists leveraging internal docs as a knowledge base.

## What the automation does
- Automatically retrieves PDF, Markdown, and TXT files from a specified Google Drive folder.
- Converts file content using ConvertAPI and Google Drive API.
- Sends cleaned text to InfraNodus to build a knowledge graph.
- Activates a LangChain agent with OpenAI model to answer user questions via chat.
- Uses GraphRAG: analyzes topic relationships in the graph instead of relying on semantic search.
- Triggered manually or by incoming chat messages.

## What´s included
- Ready-to-use n8n workflow.
- Trigger logic: manual execution and message-based activation.
- Integrations with Google Drive, InfraNodus, OpenAI, and ConvertAPI.
- Basic setup and adaptation guide.

## Requirements for setup
- n8n instance with HTTP API access.
- Google Drive account with read access to the target folder.
- InfraNodus API key.
- OpenAI API key.
- ConvertAPI key (for PDF processing).

## Benefits and outcomes
- Access document knowledge without vector databases.
- Deeper context understanding through graph-based analysis.
- Faster deployment: no need to configure embeddings or vector stores.
- Intuitive chat interface for querying documents.
- Supports common formats: PDF, Markdown, TXT.
- Scalable: simply add new files to the Google Drive folder.

## 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.