AI Document Chat for Nextcloud with LangChain & OpenAI"

Say goodbye to disconnected file queries!

This automation connects n8n, LangChain, and Nextcloud to create an AI-powered assistant that answers questions about documents stored in your folders — directly from chat. Perfect for teams, educators, and researchers who want instant, contextual answers from their own content.

No more digging through folders — just ask and get answers.

What it does:

💬 Starts a public chat-based AI session via trigger
🧠 Uses a LangChain agent with OpenAI and short-term memory for context
📁 Accepts folder path in questions to retrieve relevant documents
🔧 Invokes a sub-workflow to read files from Nextcloud and extract content
📄 Supports and parses PDF, Markdown, and DOCX formats
🧊 Aggregates extracted text and feeds it back into the AI for a response

✅ Comes with main AI workflow + modular file-reading sub-workflow

Need help setting it up? We offer full configuration and testing for a one-time fee.