FREE - Instagram Viral Reel Script Generator Ai Agent

System overview

This automation uses n8n + Apify + Pinecone + OpenRouter/OpenAI + Google Sheets + Google Drive + Gmail to fully automate:

• Competitor reel scraping
• Transcript extraction
• Niche relevance scoring
• Viral pattern extraction (vector search)
• Idea generation (10 concepts per run)
• Script writing (full 60–90 sec scripts)
• Documentation (Google Docs + Sheets)
• Email delivery (HTML summary)

The purpose of this system is simple: produce consistent, original Instagram reel scripts based on real viral patterns—without manual research.

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Who benefits

• Solo creators who want daily content ideas
• Agencies producing reels for multiple clients
• Marketers needing scalable short-form content
• Automation engineers who want a reusable blueprint

Who will use it

• You (the operator): Run workflow, manage credentials, adjust niches
• Editor/Creator: Opens Google Docs + emails to film the scripts
• Automation tech: Maintains credentials, sheets, Pinecone indexes

Key components & data flows

Main Components

• Google Sheets → Competitor list + final idea logs
• Apify Actor → Scrapes reel metadata
• OpenAI Whisper → Transcribes downloaded reels
• Pinecone → Stores embeddings for transcripts
• OpenRouter/OpenAI LLMs → Relevance scoring, idea generation, scripting
• Google Drive → Saves final script documents
• Gmail → Sends HTML email summary

Step-by-step workflow

1. Load competitors from Google Sheets (2s)
2. Loop through competitors (1s each)
3. Scrape reels using Apify (10–20s)
4. Sort by likes → limit top 5 (1s)
5. Download reel videos (5–15s each)
6. Transcribe with Whisper (5–20s)
7. Evaluate relevance with LLM JSON agent (3–5s)
8. Store embeddings in Pinecone (3s)
9. Retrieve viral patterns from Pinecone (3s)
10. Generate 10 viral ideas (6–10s)
11. Format ideas → loop
12. Write full scripts (60–90s) (8–15s each)
13. Clean LLM output (1s)
14. Save script as Google Doc (1–2s)
15. Update Sheet with doc link (1s)
16. Compile all scripts to HTML email (3–6s)
17. Send email via Gmail (1s)