Zoom + n8n + GPT-4o + Supabase RAG
This n8n workflow automates Zoom meeting intelligence by capturing recordings via webhook, transcribing audio using OpenAI Whisper, analyzing it with GPT-4o and storing structured insights in Supabase vector database. It detects summaries, decisions, action items and contradictions, then sends an email report to stakeholders.
meeting_memories table with vector supportThis workflow automatically processes Zoom meeting recordings and converts them into structured intelligence. It extracts transcript text, analyzes it using GPT-4o and generates structured insights like decisions, summaries and action items.
It also compares new meetings with historical data using Supabase vector search to detect contradictions or repeated decisions.
Finally, it stores everything in a semantic memory database and sends a clean email report to stakeholders.
Zoom webhook captures meeting recording events and sends metadata like recording URL and meeting title to n8n.
The workflow extracts recording URL and metadata using a set node.
Audio is downloaded from Zoom cloud and sent to OpenAI Whisper for transcription into text.
The raw transcript is cleaned and formatted into a structured format for AI processing.
GPT-4o analyzes the transcript and extracts:
Structured output parser ensures valid JSON format.
A hash is generated from the transcript and checked in Supabase:
Embeddings are created and stored in Supabase vector DB. Past meetings are retrieved to compare decisions and detect contradictions.
Final structured output is stored and emailed to stakeholders with insights.
More use cases can be built depending on customization.
| Issue | Possible Cause | Solution |
|---|---|---|
| No transcript generated | Invalid Zoom recording URL | Check webhook payload |
| Duplicate not detected | Incorrect Supabase query path | Fix metadata filter |
| Empty AI response | Weak prompt structure | Improve prompt clarity |
| Email not sent | Gmail auth expired | Reconnect Gmail OAuth |
| Supabase returns empty | Wrong filter syntax | Validate JSON column query |
If you need help customizing or scaling this workflow into production-grade automation, you can get expert assistance from n8n developers at WeblineIndia. They specialize in building AI-powered automation systems using n8n, OpenAI and vector databases.