Cephei llms.txt Generator

Cephei llms.txt Generator creates your llms.txt from the actual public content of your website. You review and edit the result before publishing it at /llms.txt.

How it differs

• Content-based: the free Cephei service crawls your public pages and writes the llms.txt from their content, instead of only listing posts from the WordPress database.
• Written for AI readers: an English site summary, sections and link descriptions, also for websites in other languages.
• Verified links: every link in the result must match a URL found during the crawl. Invalid, truncated or incomplete results are rejected instead of shown.
• No AI setup: no API key, account or subscription. Generation runs on Cephei-operated infrastructure in Germany without external AI providers.
• You stay in control: nothing is published until an administrator has reviewed the text and clicked Publish.

How it works

The plugin adds a page under Settings > llms.txt Generator. It automatically uses this WordPress website’s public home URL. There is no URL input field.

1. Click Generate llms.txt.
2. Wait for the public website crawl and AI generation to finish.
3. Review and edit the generated English text. Service comments are removed.
4. Click Publish to make the text available at /llms.txt.

Generating and editing do not change the published version. Failed or cancelled generation keeps the previous editor contents and publication. Empty content cannot be published. Only users with the manage_options capability can manage the publication. The public file can be read without logging in.

The plugin stores the published text in the WordPress database and serves it as text/plain; charset=utf-8 at the domain-root /llms.txt. No FTP access or writable file in the document root is required. The URL is checked before publishing and the public content is checked afterwards. WordPress must receive requests for this path, usually through the site’s existing pretty-permalink routing.

The interface is translation-ready and follows your WordPress user language when a matching language pack is installed. The service generates English ASCII text regardless of the website language. You can edit the result, including adding UTF-8 characters. Maximum publication size: 1 MiB.

The plugin and service are free to use, with no registration, paid upgrade, subscription or license key. Cephei AG provides the tool to introduce its work. Company information is confined to this plugin’s settings page. No promotional links or credits are automatically added to your public website or llms.txt.

llms.txt is an emerging proposal, not a guarantee of inclusion, ranking, citation or use by any AI system. Review generated content before publishing.

External service

This plugin relies on the public Cephei llms.txt generator at https://llms.cephei.ai/ for crawling and AI generation. No AI model runs on your WordPress server.

• When: only after an administrator clicks Generate llms.txt. Installing, activating, opening the settings page and publishing do not call the generator.
• Sent: the configured public website URL in the p query parameter. The direct browser connection also exposes the administrator’s public IP address and ordinary HTTP connection metadata, including Origin, to the service.
• Not sent: WordPress cookies, login credentials, private posts or editor changes. The generator request omits credentials and the Referer header.
• Processing: the service retrieves publicly accessible website content, uses its crawler and Ollama backend to create an English llms.txt, and returns it. Public content can itself contain personal data; it is part of the crawl.
• Storage: the generator processes crawl archives in memory and releases source documents and model context after use. According to the service privacy notice, crawl content, model inputs, results and technical log output are not stored persistently on the generator infrastructure. Temporary in-memory rate-limit counters contain IP-related and website identifiers, timestamps and active locks, not crawl content or results. WordPress stores only the text you explicitly publish and its publication timestamp. Unpublished edits stay in the open tab.
• Operation: the service privacy notice describes Cephei-operated infrastructure in Germany, with no external AI providers or use of the data for model training. Retrieving public sources also involves contacting their respective web servers.
• Limits: the public service has IP, website and overall capacity limits. The plugin reports a busy service or a rate limit instead of retrying automatically.

Service information: English | Deutsch

Privacy policy: English | Deutsch

Terms of use: English | Deutsch

Provider and contact: English | Deutsch

The settings page links to these documents before generation. German user locales open the German website pages; other user locales open the English pages.

The browser talks directly to the service so long-running generation does not depend on PHP execution time limits. A website Content-Security-Policy that restricts connect-src needs to allow https://llms.cephei.ai. The generator must send Access-Control-Allow-Origin: * and does not allow credentialed CORS requests. No per-installation CORS registration is required.

Source and license

Copyright (C) 2026 Cephei AG. This plugin is licensed under GNU GPL version 2 or, at your option, any later version. It is supplied without warranty; see LICENSE.txt. All PHP, JavaScript and CSS source is included unminified. No runtime build is needed. Translations are distributed separately through WordPress.org language packs.

This license applies to the distributed WordPress plugin, not automatically to the separately operated generator service.