Markdown and llms.txt

AI assistants prefer clean text over HTML full of menus and buttons. That's why every public EenFactuurMaken.nl page (the website, pricing, this documentation and the legal pages) also has a Markdown version.

A page as Markdown

There are two ways:

1. Add .md to the address. For example https://eenfactuurmaken.nl/en/pricing.md, https://eenfactuurmaken.nl/en/docs/vat/kor.md or https://eenfactuurmaken.nl/docs/api.md (Dutch). For the home page use /en/index.md, for the documentation /en/docs.md.
2. Ask for Markdown with the Accept: text/markdown header on the normal address:

curl https://eenfactuurmaken.nl/en/docs/credit-notes -H "Accept: text/markdown"

The Markdown version contains the page content, without navigation, buttons and the search bar. Links are full URLs.

The app itself (/app), the sign-in pages and the API don't have a Markdown version: they aren't public.

llms.txt

https://eenfactuurmaken.nl/llms.txt follows the llms.txt standard: a short description of EenFactuurMaken.nl with links to the Markdown versions of all important pages, including all documentation, in Dutch and English.

https://eenfactuurmaken.nl/llms-full.txt contains the most important pages one after another in a single Markdown file. Handy to give to an AI assistant in one go, for example: "Read https://eenfactuurmaken.nl/llms-full.txt and explain how I create a credit note."

For developers

• The OpenAPI 3.1 specification describes the REST API in a machine-readable way.
• The MCP server lets AI assistants work in your account on your behalf.
• The prompt library has prompts for building an integration with these sources.