https://carrero.es

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  "markdown": "-   ## [La IA también tendrá su servidor propio: del token al cloud privado](https://carrero.es/la-ia-tambien-tendra-su-servidor-propio-del-token-al-cloud-privado/)\n\n    2026-07-14\n\n    Esta publicación nace de una idea de Javier Escribano que me parece especialmente acertada: la historia del precio de los tokens se entiende mucho mejor si se mira como una repetición de…\n\n    [Leer artículo →: La IA también tendrá su servidor propio: del token al cloud privado](https://carrero.es/la-ia-tambien-tendra-su-servidor-propio-del-token-al-cloud-privado/)\n\n    ![La IA también tendrá su servidor propio: del token al cloud privado](https://carrero.es/wp-content/uploads/2026/07/ia-servidor-propio-scaled.jpg)\n\nÚltimas entradas\n\n[Ver archivo completo →](https://carrero.es/archivo/)\n\nEl boletín de Carrero\n\n## Una idea que merece tu semana, sin ruido ni titulares de relleno\n\nCada martes, un ensayo sobre IA, internet, negocio e inversión.\n",
  "fullPageMarkdown": "Carrero.es en un blog iniciado por David Carrero Fernández-Baillo.                                                         [Saltar al contenido](https://carrero.es/#content)\n\n[~/carrero.es](https://carrero.es/)\n\n-   Último artículo # [Negocio e inversión](https://carrero.es/category/empresas/), [Internet y sociedad](https://carrero.es/category/internet-y-sociedad/), [Programación y software](https://carrero.es/category/software/)\n\n    ## [La IA también tendrá su servidor propio: del token al cloud privado](https://carrero.es/la-ia-tambien-tendra-su-servidor-propio-del-token-al-cloud-privado/)\n\n    2026-07-14\n\n    Esta publicación nace de una idea de Javier Escribano que me parece especialmente acertada: la historia del precio de los tokens se entiende mucho mejor si se mira como una repetición de…\n\n    [Leer artículo →: La IA también tendrá su servidor propio: del token al cloud privado](https://carrero.es/la-ia-tambien-tendra-su-servidor-propio-del-token-al-cloud-privado/)\n\n    ![La IA también tendrá su servidor propio: del token al cloud privado](https://carrero.es/wp-content/uploads/2026/07/ia-servidor-propio-scaled.jpg)\n\nÚltimas entradas\n\n-   2026-07-07\n\n    ## [Europa no está perdiendo la carrera de la IA por falta de talento, sino por exceso de miedo](https://carrero.es/europa-no-esta-perdiendo-la-carrera-de-la-ia-por-falta-de-talento-sino-por-exceso-de-miedo/)\n\n    #[Internet y sociedad](https://carrero.es/category/internet-y-sociedad/), [Negocio e inversión](https://carrero.es/category/empresas/)\n\n-   2026-07-05\n\n    ## [Lo que aprendí de José Elías sobre empresa, crisis y resiliencia](https://carrero.es/lo-que-aprendi-de-jose-elias-sobre-empresa-crisis-y-resiliencia/)\n\n    #[Negocio e inversión](https://carrero.es/category/empresas/), [Internet y sociedad](https://carrero.es/category/internet-y-sociedad/)\n\n-   2026-06-30\n\n    ## [Antes de los billones, Elon Musk aprendió lo mismo que Edison, Ford o Jobs: la idea no basta](https://carrero.es/antes-de-los-billones-elon-musk-aprendio-lo-mismo-que-edison-ford-o-jobs-la-idea-no-basta/)\n\n    #[Negocio e inversión](https://carrero.es/category/empresas/), [Internet y sociedad](https://carrero.es/category/internet-y-sociedad/)\n\n-   2026-06-23\n\n    ## [La tarifa plana de la IA no durará para siempre, y quizá tampoco debería](https://carrero.es/la-tarifa-plana-de-la-ia-no-durara-para-siempre-y-quiza-tampoco-deberia/)\n\n    #[Internet y sociedad](https://carrero.es/category/internet-y-sociedad/)\n\n-   2026-06-16\n\n    ## [Claude Fable 5 y la nueva programación: del Turbo Pascal a la IA](https://carrero.es/claude-fable-5-y-la-nueva-programacion-del-turbo-pascal-a-la-ia/)\n\n    #[Programación y software](https://carrero.es/category/software/)\n\n-   2026-06-09\n\n    ## [La IA no está destruyendo empleo: está cambiando el precio del trabajo](https://carrero.es/la-ia-no-esta-destruyendo-empleo-esta-cambiando-el-precio-del-trabajo/)\n\n    #[Internet y sociedad](https://carrero.es/category/internet-y-sociedad/)\n\n[Ver archivo completo →](https://carrero.es/archivo/)\n\nEl boletín de Carrero\n\n## Una idea que merece tu semana, sin ruido ni titulares de relleno\n\nCada martes, un ensayo sobre IA, internet, negocio e inversión.\n\n Acepto recibir la newsletter y la política de privacidad.Suscribirme\n\n2.400+ suscriptores · sin spam · cancela cuando quieras\n\nUsamos cookies analíticas (Google Analytics) para medir el uso del sitio. Sin tu consentimiento, la medición es anónima y sin cookies. Más información en la [política de cookies](https://carrero.es/privacidad/).\n\nRechazar Aceptar\n",
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          "code": "# In .htaccess (or VirtualHost):\nHeader set Content-Signal \"search=yes, ai-input=yes, ai-train=no\""
        },
        {
          "id": "wordpress",
          "label": "WordPress",
          "language": "php",
          "filename": "functions.php",
          "code": "<?php\n// In your theme's functions.php or a small mu-plugin\nadd_action('send_headers', function () {\n    header('Content-Signal: search=yes, ai-input=yes, ai-train=no');\n});\n\n// Optional: also append the directive to the dynamic robots.txt\nadd_filter('robots_txt', function ($output) {\n    return $output . \"\\nContent-Signal: search=yes, ai-input=yes, ai-train=no\\n\";\n}, 10, 1);"
        },
        {
          "id": "nextjs",
          "label": "Next.js",
          "language": "typescript",
          "filename": "middleware.ts",
          "code": "// middleware.ts (Next.js 13+ App Router or Pages Router)\nimport { NextResponse } from 'next/server';\nexport function middleware() {\n  const res = NextResponse.next();\n  res.headers.set(\n    'Content-Signal',\n    'search=yes, ai-input=yes, ai-train=no'\n  );\n  return res;\n}\nexport const config = { matcher: '/:path*' };"
        },
        {
          "id": "cloudflare",
          "label": "Cloudflare Workers",
          "language": "javascript",
          "filename": "worker.js",
          "code": "// Cloudflare Worker that proxies your origin and adds the header\nexport default {\n  async fetch(request, env, ctx) {\n    const res = await fetch(request);\n    const newRes = new Response(res.body, res);\n    newRes.headers.set(\n      'Content-Signal',\n      'search=yes, ai-input=yes, ai-train=no'\n    );\n    return newRes;\n  },\n};"
        },
        {
          "id": "express",
          "label": "Express / Fastify",
          "language": "javascript",
          "filename": "server.js",
          "code": "// Express\napp.use((req, res, next) => {\n  res.setHeader('Content-Signal', 'search=yes, ai-input=yes, ai-train=no');\n  next();\n});\n\n// Fastify\nfastify.addHook('onSend', (request, reply, payload, done) => {\n  reply.header('Content-Signal', 'search=yes, ai-input=yes, ai-train=no');\n  done();\n});"
        }
      ]
    },
    {
      "id": "add_markdown_negotiation",
      "title": "Support Markdown for Agents",
      "description": "Let AI agents request a clean Markdown version of any page via content negotiation, .md alternate URLs, link tags or Link headers.",
      "language": "html",
      "code": "<!-- Mechanism 3: link tag advertising the .md alternate -->\n<link rel=\"alternate\" type=\"text/markdown\" href=\"/page.md\">",
      "filename": "<head>",
      "stacks": [
        {
          "id": "html",
          "label": "HTML <head>",
          "language": "html",
          "filename": "<head>",
          "code": "<!-- Mechanism 3: link tag advertising the .md alternate -->\n<link rel=\"alternate\" type=\"text/markdown\" href=\"/page.md\">"
        },
        {
          "id": "express",
          "label": "Express",
          "language": "javascript",
          "filename": "server.js",
          "code": "// Mechanisms 1 + 4: content negotiation + Link header\napp.get('/page', (req, res) => {\n  res.setHeader('Vary', 'Accept');\n  res.setHeader('Link', '</page.md>; rel=\"alternate\"; type=\"text/markdown\"');\n  if ((req.headers.accept || '').includes('text/markdown')) {\n    res.type('text/markdown; charset=utf-8');\n    return res.send(renderMarkdown('page'));\n  }\n  res.render('page');\n});"
        },
        {
          "id": "fastify",
          "label": "Fastify",
          "language": "javascript",
          "filename": "server.js",
          "code": "// Mechanisms 1 + 4: content negotiation + Link header\nfastify.get('/page', async (req, reply) => {\n  reply.header('Vary', 'Accept');\n  reply.header('Link', '</page.md>; rel=\"alternate\"; type=\"text/markdown\"');\n  if ((req.headers.accept || '').includes('text/markdown')) {\n    return reply.type('text/markdown; charset=utf-8').send(renderMarkdown('page'));\n  }\n  return reply.view('/page.ejs');\n});"
        },
        {
          "id": "nextjs",
          "label": "Next.js",
          "language": "typescript",
          "filename": "app/page/route.ts",
          "code": "// Next.js App Router — Route Handler returning Markdown\nimport { NextRequest } from 'next/server';\nimport { renderMarkdown } from '@/lib/md';\nexport async function GET(req: NextRequest) {\n  const accept = req.headers.get('accept') || '';\n  if (accept.includes('text/markdown')) {\n    return new Response(await renderMarkdown('page'), {\n      headers: {\n        'Content-Type': 'text/markdown; charset=utf-8',\n        'Vary': 'Accept',\n      },\n    });\n  }\n  // Fall through to the page component\n  return new Response(null, { status: 404 });\n}"
        },
        {
          "id": "wordpress",
          "label": "WordPress",
          "language": "php",
          "filename": "functions.php",
          "code": "<?php\n// Mechanism 1: respond to Accept: text/markdown on the same URL\nadd_action('template_redirect', function () {\n    if (!is_singular()) return;\n    $accept = $_SERVER['HTTP_ACCEPT'] ?? '';\n    if (strpos($accept, 'text/markdown') === false) return;\n    header('Content-Type: text/markdown; charset=utf-8');\n    header('Vary: Accept');\n    $post = get_queried_object();\n    echo \"# \" . get_the_title($post) . \"\\n\\n\";\n    echo wp_strip_all_tags(apply_filters('the_content', $post->post_content));\n    exit;\n});"
        },
        {
          "id": "static",
          "label": "Hugo / Jekyll / Astro",
          "language": "txt",
          "filename": "static/page.md",
          "code": "# Mechanism 2: serve .md alongside .html\n# Hugo: place page.md in /static/ — built unchanged\n# Jekyll: drop page.md in /assets/ — copied as-is\n# Astro: src/pages/page.md.ts that exports a GET returning markdown\n\n# Then advertise with mechanism 3 in <head>:\n#   <link rel=\"alternate\" type=\"text/markdown\" href=\"/page.md\">"
        }
      ]
    }
  ]
}

Use our API to get this programmatically (coming soon)