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AI Mark — AI labelling for TYPO3

Record, label and document AI-generated content in TYPO3, in line with the transparency obligations in Art. 50 of the EU AI Act (Regulation (EU) 2024/1689), which apply since 2 August 2026.

Not legal advice

This extension is a technical aid. It supports you in implementing the obligations and does not constitute legal advice. Whether and how a specific piece of content has to be labelled remains a decision for the operator in each individual case.

What the extension does

Record — a dedicated "AI transparency" tab in the file metadata: degree of AI involvement, system used, creation date, responsible person. Equivalent fields for texts on pages, content elements and any table you configure.

Suggest automatically — on upload, existing provenance data is read: a C2PA signature, the IPTC DigitalSourceType from XMP, and finally a signature list over EXIF fields. Confirming it stays with a human.

Label — accessible frontend output using the official EU icons, with an expandable detail panel. For texts, a sentence rather than an icon.

An AI-generated image in the frontend carrying the official "AI GENERATED" icon in the bottom right, with the "Details on AI use" button below it

Evidence — a backend module showing how far the review has come and what is still open, plus a trail of every status change.

The "AI transparency" backend module with ring charts for review progress and distribution

What it deliberately does not do

  • No detection of AI in foreign images. Heuristic detectors are unreliable, and a false positive would be a false statement about a piece of content.
  • No labelling without human confirmation. An automatic finding is always a suggestion. "This content is AI generated" is a claim, and a person makes it.
  • No guarantee of legal compliance. For assessing an individual case, please seek legal advice.

Requirements
TYPO3 13.4 LTS, 14 LTS
PHP 8.2 – 8.4
Optional c2patool for Content Credentials

Quick start

composer require netthinks/nt-aimark
vendor/bin/typo3 extension:setup

Then add the AI Mark site set — see Installation.

Part of the NET.THINKS AI suite

Extension Purpose
nt_ai AI integration: alt texts, accessibility audits
nt_lingua Translation, plain language, l10n overlays
nt_aimark AI transparency and labelling

With nt_ai or nt_lingua installed, they can report what they generate — see Integration.

Who is behind this

nt_aimark is built by NET.THINKS, a TYPO3 agency in Villingen-Schwenningen, Germany. The core package is free (GPL-2.0-or-later) and complete — it is not a trial version of something bigger.

Beyond it there are two things some people need and many do not:

The add-on package nt_aimark_pro hooks into the documented extension points and adds what the free package deliberately leaves out because not everyone needs it: burning the icon into the image file, post-processing finished HTML for grown templates, audit evaluation and export, a transparency statement, and a hosted service for checking Content Credentials.

Help with the rollout — taking stock, classifying content, setting things up. Anyone wanting to do it themselves will find everything needed in these pages; that is explicitly the normal case.