Analyze YouTube videos and auto-generate AI reports in Google Docs with DeepSeek

A compact n8n workflow that accepts a YouTube link or uploaded video, pulls a transcript via Supadata.ai, runs a language-model-based video analysis agent to produce a structured report, extracts a title/metadata, then creates and updates a Google Doc with the analysis. It's designed to automate transcription → analysis → document creation for fast, repeatable video reviews.

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How it works

1. Trigger — Upload File or YouTube Link A form trigger receives a youtubeurl or an uploaded file/webhook event.

2. Transcription — Transcription using Supadata.ai Calls the transcription API using the x-api-key header to retrieve the video transcript/text.

3. Analysis — Analyser The transcript is passed to the Analyser LangChain agent which runs a tailored prompt (expert video analyst) and generates a plain-text report.

4. Metadata extraction — File Name Detector The information extractor parses the analyser output to extract structured attributes such as the Title.

5. Aggregation & Merge Merge/Aggregate nodes combine the analysis and extracted fields into a single payload.