Audit & generate JSON-LD schema markup for SEO with GPT-4.1-mini + Gmail
Schema Markup Generator Automatically audit and optimize your site’s JSON-LD structured data and email a step-by-step implementation guide. --- What It Does Collects a website URL & email via form Extracts existing JSON-LD, identifies gaps Generates optimized schema markup (GPT-4.1-mini) Builds an HTML before/after guide with action items Emails the full implementation instructions --- Prerequisites n8n instance (self-hosted, Desktop, or Cloud) Gmail OAuth2 credentials OpenRouter API key
At a glance
Audit & generate JSON-LD schema markup for SEO with GPT-4.1-mini + Gmail is a ready-made n8n workflow you import as a workflow JSON file — no build required. It connects Gmail, OpenAI. It's free to download. Follow the 5-step import below to go live in minutes.
- Platform
- n8n
- Connects
- Gmail, OpenAI
- Modules
- 9
- Price
- Free
- Version
- v1.0

About this workflow
Schema Markup Generator Automatically audit and optimize your site’s JSON-LD structured data and email a step-by-step implementation guide. --- What It Does Collects a website URL & email via form Extracts existing JSON-LD, identifies gaps Generates optimized schema markup (GPT-4.1-mini) Builds an HTML before/after guide with action items Emails the full implementation instructions --- Prerequisites n8n instance (self-hosted, Desktop, or Cloud) Gmail OAuth2 credentials OpenRouter API key (for GPT-4.1-mini) --- Quick Setup 1. Gmail: Add OAuth2 credential → select in “Send Email” node 2. OpenRouter: Store API key → link in “Schema Markup Agent” node 3. Form: Configure fields websiteUrl & emailAddress in your Webhook/Form node --- Customization AI Prompt: Tweak system message to focus on specific schema types or output style Email Template: Modify HTML header/footer or add sections --- Troubleshooting & Limits Monitor OpenRouter rate limits and Gmail send quotas Ensure target sites allow scraping for schema extraction
How to import this n8n workflow
- 1
Download the workflow JSON file after purchase.
- 2
Open n8n → click the menu → Import from File.
- 3
Select the downloaded JSON and import.
- 4
Set up credentials for each node that requires them.
- 5
Click Execute Workflow to test, then activate.
Setup guide
Setup guide included
Purchase to unlock the full step-by-step guide
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- JSON blueprint — instant download
- Setup guide PDF included
- 5 downloads · valid 30 days
- Works with n8n
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