LangShake: The New Standard for AI-Ready Web Content

LangShake is a modern web protocol that makes your site machine-readable, AI-friendly, and verifiable — without changing your frontend.

It introduces a three-part system to expose structured content to Large Language Models (LLMs), search agents, and automated crawlers:

sitemap.xml Extension

LangShake adds new fields to your existing sitemap.xml, allowing you to link to structured content and verify its integrity.

<url>
  <loc>https://example.com/article</loc>
  <lastmod>2025-04-16T17:58:00Z</lastmod>
  <langshake:schema-url>https://example.com/langshake/article.json</langshake:schema-url>
  <langshake:checksum>8f7a9b3cf5a...a8b9c07e8f</langshake:checksum>
</url>

Content JSON Files — Schema.org Data

This is a standalone JSON file following Schema.org standards. It's used by LLMs instead of parsing HTML, and includes a checksum to ensure it hasn't been modified.

{
  "@context": "http://schema.org",
  "@type": "Article",
  "headline": "LangShake: Revolutionizing LLM Training Data",
  "description": "A guide to implementing the LangShake protocol...",
  "articleBody": "...",
  "author": { "name": "Jane Smith" },
  "publisher": { "name": "Example Corp" },
  "checksum": "8f7a9b3cf5a...a8b9c07e8f"
}

.well-known/llm.json — The Manifest

This file serves as a high-level entry point for AI agents. It describes your site, links to structured content, and optionally includes context and a Merkle root for integrity checks.

{
  "version": "1.0",
  "site": {
    "name": "Example Corp",
    "language": "en"
  },
  "modules": [
    "/langshake/article.json"
  ],
  "llm_context": {
    "summary": "We build open-source AI tools.",
    "principles": ["Transparency", "Ethics"]
  },
  "verification": {
    "strategy": "merkle",
    "merkleRoot": "abc123..."
  }
}