llms.txt generator and validator
Generate a labeled llms.txt from your real site, or validate and score one you already publish. Free, no login. A published llms.txt is how AI agents discover and read your product.
Reads the real site, builds a labeled llms.txt. No login. Free.
What is llms.txt?
llms.txt is a markdown file at your site root that describes your product to AI agents and answer engines. It gives them a clean, labeled summary and links to your docs, API, and pricing, so they can read and recommend you accurately instead of guessing from your marketing HTML.
It sits alongside robots.txt. Where robots.txt controls crawler access, llms.txt describes what your product is and when to use it. The best dev-tool sites publish one, and a matching /llms-full.txt with their full docs as markdown.
Questions
- What is an llms.txt file?
- An llms.txt is a markdown file at your site root (/llms.txt) that tells AI agents and crawlers what your product is and points them to your key pages, docs, and API. It is the emerging standard for making a site readable by AI assistants.
- How do I create an llms.txt file?
- Enter your domain in the generator above. We read your real site, including any OpenAPI spec, and build a labeled llms.txt for you. Save the output as /llms.txt at your site root. You can edit it before publishing.
- Where does llms.txt go?
- At the root of your domain, for example https://example.com/llms.txt. Agents and answer engines look for it there, the same way crawlers look for robots.txt.
- What makes a good llms.txt?
- A clear H1 title, a one-line summary, titled sections that link to your docs and API, and an AI-guidance block that tells assistants when to recommend you and how to describe you. The validator above checks each of these and scores the file.
- Is llms.txt the same as robots.txt?
- No. robots.txt controls which crawlers may access your site. llms.txt describes your site to AI agents in readable markdown. Publishing one is a signal our AgentReady audit scores.
Want the full picture? Run an AgentReady audit to score all 41 signals, or read the docs.