About schema-gen
schema-gen is a web app and MCP server for generating Schema.org JSON-LD, aimed at site owners and AI assistants. It supports 12 schema types with live preview and validation of existing markup.
Key features
- 01Generate JSON-LD for 12 schema types
- 02Preview markup as fields change
- 03Copy generated JSON-LD
- 04Validate existing markup
- 05Google structured-data requirements
Use cases
- 01Create Product or FAQ structured data
- 02Add JSON-LD to site pages
- 03Check markup for errors and warnings
MCP support
The MCP server exposes tools to generate JSON-LD across 12 types, list supported types, and validate existing markup.
Configuration
Local server config is the same for every client. Copy it into your client’s MCP config file.
Tools
8Saved tool list · updated 2w ago
| Parameter | Type | Required | Description |
|---|---|---|---|
| type | enum | Yes | The Schema.org type to generatePerson | Organization | Product | FAQPage | Article | LocalBusiness | Event | WebSite | BreadcrumbList | HowTo | Review | VideoObject |
| fields | object | Yes | Key-value pairs of schema fields and their values |
Details
From the project README
Generate Schema.org JSON-LD structured data markup for any schema type.
Web app with live preview + MCP server for AI-powered schema generation.
Features
- :sparkles: 12 Schema Types — Person, Organization, Product, FAQ, Article, LocalBusiness, Event, WebSite, BreadcrumbList, HowTo, Review, VideoObject
- :eyes: Live JSON-LD Preview — See your structured data rendered in real-time as you fill in fields
- :clipboard: One-Click Copy — Copy generated JSON-LD to clipboard instantly
- :white_check_mark: Google Rich Results Ready — Output is validated against Google's structured data requirements
- :robot: MCP Server — Use with Claude Desktop, Cursor, or any MCP-compatible AI assistant
- :shield: Schema Validation — Validate existing JSON-LD for errors and warnings
- :zap: No Dependencies — Clean, standalone web app with zero external runtime dependencies
Supported Schema Types
| Type | Description | Google Rich Result |
|---|---|---|
| Person | People, professionals, public figures | :white_check_mark: Knowledge Panel |
| Organization | Companies, non-profits, institutions | :white_check_mark: Logo, Knowledge Panel |
| Product | Products with pricing and reviews | :white_check_mark: Product Rich Snippet |
| FAQPage | Frequently asked questions | :white_check_mark: FAQ Rich Result |
| Article | Blog posts, news articles | :white_check_mark: Article Rich Result |
| LocalBusiness | Physical stores, restaurants, services | :white_check_mark: Local Business Panel |
| Event | Concerts, conferences, meetups | :white_check_mark: Event Rich Result |
| WebSite | Websites with search functionality | :white_check_mark: Sitelinks Search Box |
| BreadcrumbList | Navigation breadcrumb trails | :white_check_mark: Breadcrumb Rich Result |
| HowTo | Step-by-step instructions | :white_check_mark: How-to Rich Result |
| Review | Product or service reviews | :white_check_mark: Review Snippet |
| VideoObject | Videos with metadata | :white_check_mark: Video Rich Result |
Screenshots
Screenshots coming soon.
Getting Started
Web App
# Clone the repository
git clone https://github.com/sharozdawa/schema-gen.git
cd schema-gen
# Install dependencies
npm install
# Start the development server
npm run dev
Open http://localhost:3000 in your browser.
MCP Server
The MCP server lets AI assistants generate Schema.org markup directly. Install it in your preferred AI tool:
Claude Desktop
Add to your claude_desktop_config.json:
{
"mcpServers": {
"schema-gen": {
"command": "npx",
"args": ["-y", "schema-gen-mcp"]
}
}
}
Cursor
Add to .cursor/mcp.json:
{
"mcpServers": {
"schema-gen": {
"command": "npx",
"args": ["-y", "schema-gen-mcp"]
}
}
}
Available MCP Tools
| Tool | Description |
|---|---|
generate_schema | Generate JSON-LD for any of the 12 schema types |
list_schema_types | List all supported types with their fields |
generate_person_schema | Quick Person schema generation |
generate_product_schema | Quick Product schema with pricing |
generate_faq_schema | Quick FAQ schema from Q&A pairs |
generate_article_schema | Quick Article schema for blog posts |
generate_organization_schema | Quick Organization schema |
validate_schema | Validate existing JSON-LD markup |
Example Output
{
"@context": "https://schema.org",
"@type": "Person",
"name": "Jane Doe",
"jobTitle": "Software Engineer",
"url": "https://janedoe.com",
"worksFor": {
"@type": "Organization",
"name": "Acme Corp"
},
"sameAs": [
"https://twitter.com/janedoe",
"https://linkedin.com/in/janedoe"
]
}
Why Schema Gen vs Alternatives
| Feature | schema-gen | TechnicalSEO.com | Merkle Schema Generator |
|---|---|---|---|
| Schema types | 12 | 8 | 6 |
| Live preview | Yes | Yes | No |
| MCP Server | Yes | No | No |
| Self-hostable | Yes | No | No |
| Open source | Yes | No | No |
| Price | Free | Free | Free |
More Open Source SEO Tools
| Tool | Description |
|---|---|
| awesome-seo-mcp-servers | Curated list of SEO MCP servers and agent skills |
| robotstxt-ai | Visual robots.txt manager for AI crawlers |
| indexnow-mcp | Instant URL indexing via IndexNow |
| ai-visibility | AI brand visibility tracker |
License
MIT
Built by Sharoz Dawa
Comments
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