@lacspace/llms-txt

Generate & parse llms.txt and llms-full.txt — the llmstxt.org standard.

llms.txt is a Markdown file at your site root that gives LLMs a curated map of your most useful pages; llms-full.txt inlines the full content so a model can read everything in one request. This builds (and parses) both — the SEO layer for the AI era.

• 📄 llmsTxt() — H1 title, blockquote summary, linked sections
• 📚 llmsFullTxt() — full content inlined for one-shot ingestion
• 🔁 parseLlmsTxt() — read an existing file back into structured data
• ⚡ Zero dependencies · 🌍 isomorphic · 📦 ESM + CJS · fully typed

Install

npm install @lacspace/llms-txt      # or pnpm add / yarn add / bun add

Generate llms.txt

import { llmsTxt } from "@lacspace/llms-txt";

const txt = llmsTxt({
  title: "Lacspace",
  summary: "Open-source TypeScript packages and products.",
  details: "Zero-dependency, isomorphic, Lacspace-Free-Licensed.",
  sections: [
    {
      title: "Docs",
      links: [
        { title: "npm Packages", url: "https://lacspace.com/packages", notes: "20 packages" },
        { title: "SDK", url: "https://www.npmjs.com/package/@lacspace/sdk" },
      ],
    },
  ],
});

# Lacspace

> Open-source TypeScript packages and products.

Zero-dependency, isomorphic, Lacspace-Free-Licensed.

## Docs

- [npm Packages](https://lacspace.com/packages): 20 packages
- [SDK](https://www.npmjs.com/package/@lacspace/sdk)

Generate llms-full.txt

import { llmsFullTxt } from "@lacspace/llms-txt";

llmsFullTxt({
  title: "Lacspace Docs",
  sections: [
    { title: "Getting started", url: "https://lacspace.com/docs", content: "# Getting started\n\nInstall with npm…" },
  ],
});

Parse

import { parseLlmsTxt } from "@lacspace/llms-txt";

const doc = parseLlmsTxt(existing); // { title, summary, details, sections: [{ title, links }] }

Serve llmsTxt(...) at /llms.txt and llmsFullTxt(...) at /llms-full.txt (e.g. from a Next.js Route Handler or any static build step).

The Lacspace SEO Kit

| Package | For | | --- | --- | | @lacspace/seo | Metadata & JSON-LD | | @lacspace/sitemap | sitemap.xml | | @lacspace/robots | robots.txt | | @lacspace/llms-txt | llms.txt / llms-full.txt (this package) | | @lacspace/site-verify | Search-engine verification | | @lacspace/rss | RSS / Atom / JSON feeds | | @lacspace/slugify | SEO URL slugs |

New in 1.2 — build from your sitemap

import { llmsTxtFromSitemap } from "@lacspace/llms-txt";

// Feed the same URL list your sitemap uses; sections + titles are derived
const txt = llmsTxtFromSitemap(
  [
    { url: "https://x.com/", section: "Main" },
    { url: "https://x.com/docs/sdk", section: "Docs", title: "SDK" },
  ],
  { title: "Lacspace", summary: "Open-source packages & products." },
);

New in 1.1 — Response helpers

import { llmsTxtResponse, llmsFullTxtResponse } from "@lacspace/llms-txt";

// app/llms.txt/route.ts — served as text/plain
export function GET() {
  return llmsTxtResponse({ title: "Lacspace", summary: "…", sections });
}

Licensing

This package is free under the Lacspace Free Licence — MIT-equivalent freedoms. Use it in personal and commercial projects at no cost; just keep the notice.

Not every Lacspace package is free. We also offer Commercial (paid), Client-specific, and Private (proprietary) packages under separate terms. See the full Lacspace Licence Centre.

Part of the Lacspace ecosystem — 35 zero-dependency, isomorphic TypeScript packages.

All packages ↗ · npm org ↗ · Licence Centre ↗ · GitHub ↗