Convert YouTube videos into SEO blog posts using WayinVideo and GPT-4o-mini

Description Automatically convert any video URL into a fully structured, publish-ready SEO blog post using WayinVideo AI transcription, GPT-4o-mini, and Google Sheets — zero manual writing required. --- What This Workflow Does This workflow takes a single video URL and does everything for you. It transcribes the video using WayinVideo — a powerful multilingual video transcription API that accurately converts spoken content into clean, structured text — then passes that transcript to an AI Agent that writes a complete SEO blog post with title, meta description, slug, sections, FAQs, key takeaways, and tags. The final output is saved directly as a draft row in Google Sheets, ready for review and publishing. Perfect for content marketers, YouTubers, agencies, and SEO teams who want to repurpose video content at scale without touching a keyboard. --- Key Features AI-powered transcription via Wayin: Uses the WayinVideo API to transcribe any video URL into clean, timestamped text segments with word count and duration metadata — supporting multilingual content. Smart polling loop: Automatically polls Wayin every 5 seconds until transcription is complete — no manual waiting or webhook setup needed. Structured SEO output: GPT-4o-mini generates a complete blog post with H2 sections (300+ words each), meta description (155 chars), URL slug, focus keyword, secondary keywords, FAQs, and a CTA conclusion. Strict JSON schema enforcement: A Structured Output Parser validates every AI response — no broken outputs, no missing fields. Google Sheets auto-logging: Every blog post is instantly saved as a draft row with date, video URL, word count, read time, tags, and status. Webhook-triggered: Works as part of any larger pipeline — trigger it from Make, Zapier, or your own frontend. --- How It Works 1. Receive Video URL — Webhook accepts a POST request with {"url": "your-video-link"} 2. Submit Transcription — Wayin — Sends the video URL to WayinVideo API to start English transcription job 3. Poll Transcription Status — Fetches job status using the transcription ID every 5 seconds 4. Wait 5 Seconds — Pauses execution between each poll attempt to avoid rate limits 5. Is Transcription Complete? — IF status = SUCCEEDED → move forward, ELSE → re-poll 6. Process Transcript Data — Joins all text segments, calculates word count and video duration 7. Generate SEO Blog Post — AI Agent (GPT-4o-mini) writes the full structured blog post 8. Parse Blog JSON Output — Enforces strict JSON schema and auto-fixes any format issues 9. Save to Google Sheets — Appends all blog fields as a new draft row 10. Return Success Response — Sends confirmation back to the webhook caller --- Setup Requirements Tools you'll need: - Active n8n instance (self-hosted or n8n Cloud) - WayinVideo account + API key (for video transcription) - OpenAI API key (GPT-4o-mini for blog generation) - Google Sheets with OAuth access (for draft storage) Estimated setup time: 10–15 minutes --- Configuration Steps 1. Add credentials in n8n: - OpenAI API key - Google Sheets OAuth API 2. Add your WayinVideo API Key: - Open Submit Transcription — Wayin node → replace YOURWAYINAPIKEY in the Authorization header - Open Poll Transcription Status node → replace YOURWAYINAPIKEY in the Authorization header 3. Set up your Google Sheet: Create a sheet with these exact column headers: Date | Video URL | SEO Title | Slug | Focus Keyword | Meta Description | Secondary Keywords | Read Time | Tags | Word Count | Duration (min) | Status 4. Update Sheet Document ID: - Open Save to Google Sheets node - Replace YOURGOOGLESHEETDOCUMENTID with your actual Sheet ID (found in the Google Sheet URL) 5. Test the workflow: - Activate the workflow - Send a POST request to your webhook URL: - Check your Google Sheet for the new draft row --- Use Cases Content marketers: Repurpose every YouTube video, webinar, or podcast episode into an SEO blog post automatically — 10x your content output without extra writing. SEO agencies: Generate first-draft blog posts for clients from recorded calls, demos, or training videos in minutes. Course creators: Turn every lesson or tutorial video into a standalone blog post to drive organic search traffic. YouTubers & podcasters: Build a content library of written posts from existing video content with zero extra effort. --- Customization Options Change the AI model: Replace gpt-4o-mini with gpt-4o or gpt-4-turbo in both OpenAI nodes for higher quality output on complex topics. Add WordPress publishing: Connect a WordPress REST API node after Save to Google Sheets to auto-publish instead of saving as draft. Change output language: Modify the WayinVideo API targetlang parameter and GPT system prompt to generate blog posts in any language. Adjust blog structure: Edit the system prompt in Generate SEO Blog Post to change section count, word targets, tone, or add custom fields like author bio or schema markup. Add Slack/email notifications: Insert a Slack or Gmail node after Return Success Response to notify your team when a new draft is ready. --- Troubleshooting Transcription stuck in polling loop: Check your WayinVideo API key is valid and the video URL is publicly accessible. Private or age-restricted videos may fail. AI output missing fields: The Structured Output Parser auto-fixes most issues. If errors persist, add explicit field instructions to the GPT system prompt. Google Sheets not updating: Verify OAuth credentials are connected and the Sheet Document ID is correct (not the full URL, just the ID string between /d/ and /edit). Webhook not triggering: Make sure the workflow is activated (toggle ON) before sending test requests. Test mode webhooks use a different URL than production. --- Resources - WayinVideo — Transcription API - n8n Documentation - OpenAI API Reference - Google Sheets API --- Support Need help setting up or want a custom version built for your use case? 📧 Email: info@isawow.com 🌐 Website: