Automatically add a static link to the raw rendered text version (reStructuredText or Markdown format) of every HTML documentation page.
Optimize for LLM Consumption:
Provides a direct link to the raw, rendered text markup for the current page.
Enables developers to quickly copy clean, structured context for feeding into an LLM prompt.
TL;DR
sphinx-llms-txt-link is a Sphinx extension that injects a server-side rendered link to the .txt version of each HTML page, specifically optimized for LLMOps and training consumption.
Features
Server-Side Injection: Uses the doctree-resolved hook to insert a docutils.nodes.raw element, ensuring the link is in the static HTML source.
100% Indexable: Guarantees visibility for all crawlers (Google, specialized LLM scrapers, RAG indexers).
Theme Agnostic: Works reliably across themes (Read the Docs, Alabaster, Furo, etc.) without requiring template overrides.
Auto-Calculated Relative Path: Correctly calculates the relative path to the sibling .txt file, avoiding common issues with Sphinx’s internal link resolution.
Simple Styling Integration: Injects a standard CSS class (sphinx-llms-txt-link) for easy styling and theme-specific overrides.
Prerequisites
Python 3.9+
Sphinx 6.0+
Your Sphinx documentation must be configured to output .txt files (e.g., using sphinx_markdown_builder or ensuring the text builder runs).
Installation
pip install sphinx-llms-txt-linkDocumentation
Documentation is available on the Read the Docs project.
For guidelines on contributing check the Contributor guidelines.
Usage example
Sphinx configuration
Essential configuration
Add the extension to your conf.py. No other configuration is required.
Filename: docs/conf.py
extensions = [
# ... other extensions
"sphinx_llms_txt_link",
# ... other extensions
]Custom styling (optional)
The extension injects the following minimal HTML structure at the end of the document body:
<div class="llm-link-container">
<a href="current_page_name.txt" class="llm-link">
View llms.txt version
</a>
</div>If you wish to style the link to match your theme (e.g., Alabaster or Read the Docs), you can create a CSS file (e.g., _static/custom_sphinx_llms_txt_link.css) and include it in your conf.py settings:
Filename: docs/conf.py
html_css_files = [
"custom_sphinx_llms_txt_link.css",
]Build process
Ensure you run the standard HTML build command. If you use a tool like sphinx-markdown-builder or a custom extension to generate the .txt artifacts, ensure those artifacts exist in the build directory.
# Build the .txt files
sphinx-build -n -b text docs builddocs
# Build the HTML output and inject the link
sphinx-build -n -a -b html docs builddocsThe link will now appear at the bottom of every generated HTML page, pointing correctly to its .txt counterpart.
Tests
Run the tests with pytest:
pytestLicense
MIT
Support
For security issues contact me at the e-mail given in the Author section.
For overall issues, go to GitHub.
1 maintainer
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