Marca visual de mcp-web-validator
Validador web · W3C · SEO técnico

Valida tu web antes de publicarla.

mcp-web-validator combina el Nu HTML Checker con comprobaciones locales de SEO, enlaces y JSON-LD. Puedes usar el servidor en tu equipo o la app pública para una página que tengas autorización para revisar.

ChatGPT tools
7
Local tools
8
Audit layers
5
License
MIT
mcp-web-validator: comprobaciones de HTML, enlaces, JSON-LD y SEO técnico
mcp-web-validator combina HTML, enlaces, JSON-LD y validación técnica en un flujo MCP.

Información

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.

01validate_html

HTML y CSS: Encuentra errores y avisos de marcado con diagnósticos de W3C fáciles de leer.

02audit_public_webpage

Fundamentos SEO: Revisa título, descripción, headings, canonical, viewport, Open Graph y texto alternativo.

03validate_css

JSON-LD y enlaces: Comprueba datos estructurados y limita el análisis de enlaces para mantener el servicio seguro y acotado.

04audit_seo_metadata

Audit titles, descriptions, headings, alt text, canonical, viewport, and Open Graph.

05check_broken_links

Check a capped set of authorized public links.

06validate_schema_markup

Identify JSON-LD blocks and report JSON syntax errors.

07generate_validation_report

Combine 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.

Configuración

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-validator

Despliegue

Run audits directly from the console

~/digestseo · deploy
npm install -g mcp-web-validator
# Or execute on the fly with npx:
npx -y mcp-web-validator

Star the repo and improve your local AI coding loop.

MIT licensed. Full W3C compliance and technical SEO audits.