Valide seu site antes de publicar.
O mcp-web-validator combina o Nu HTML Checker com verificações locais de SEO, links e JSON-LD. Use o servidor no seu computador ou o app público para uma página que você tenha autorização para revisar.
- ChatGPT tools
- 7
- Local tools
- 8
- Audit layers
- 5
- License
- MIT
Sobre o produto
What is mcp-web-validator?
mcp-web-validator is an open-source Model Context Protocol server that helps AI assistants validate W3C HTML and CSS syntax, parse JSON-LD, check links, and capture layout screenshots.
It provides a public ChatGPT app for markup you explicitly provide or one authorized public HTML page, plus a separate local MCP for workspace files.
The hosted app is read-only and does not access your filesystem, execute JavaScript, crawl sites, fetch linked CSS, or authenticate to private pages.
Tools
Public ChatGPT capabilities
Read-only tools designed for the public ChatGPT app. Submit only markup and public URLs you are authorized to share or inspect.
validate_htmlHTML e CSS: Encontre erros e avisos de marcação com diagnósticos do W3C fáceis de entender.
audit_public_webpageFundamentos de SEO: Confira título, descrição, headings, canonical, viewport, Open Graph e texto alternativo.
validate_cssJSON-LD e links: Verifique dados estruturados e limite a análise de links para manter o serviço seguro e controlado.
audit_seo_metadataAudit titles, descriptions, headings, alt text, canonical, viewport, and Open Graph.
check_broken_linksCheck a capped set of authorized public links.
validate_schema_markupIdentify JSON-LD blocks and report JSON syntax errors.
generate_validation_reportCombine W3C validation with SEO and JSON-LD checks.
ChatGPT app
Use it in ChatGPT without local filesystem access
Install Web Validator by DigestSEO from the ChatGPT App Directory when available. Provide HTML or CSS, or ask it to audit one authorized public webpage.
Configuração
Configure the local MCP in your IDE
Use the local package from Claude Desktop, Cursor, or another MCP-compatible client.
Claude Desktop
Add this to claude_desktop_config.json:
{
"mcpServers": {
"mcp-web-validator": {
"command": "npx",
"args": ["-y", "mcp-web-validator"]
}
}
}Cursor
Navigate to Settings → Features → MCP and add:
Name: mcp-web-validator
Type: command
Command: npx -y mcp-web-validatorImplantação
Run audits directly from the console
npm install -g mcp-web-validator
# Or execute on the fly with npx:
npx -y mcp-web-validatorStar the repo and improve your local AI coding loop.
MIT licensed. Full W3C compliance and technical SEO audits.