European LegalTech infrastructure

AI that knows
what it doesn't know.

A tool, not an oracle.

We build LegalTech infrastructure that leads an answer back to its source. Verifiable legal sources, tools that run on the firm's own hardware, and procedures a lawyer can read before using them.

What we build

Four layers, one ecosystem

A source, a tool, an extension and a deployment. You can check each one without us, before you sign anything.

Knowledge

Repertorium

Law connected. Not just searched.

A graph of citations and statutory references, amendment history, how long a line of case law held, and a warning when the legal basis changed. People, applications and AI agents read it, each through its own interface.

1,492,530
Polish documents
236,944
EU documents
1,443,748
PL-EU links
Explore RepertoriumUse it in your product
ochrona danych osobowychPolish law

10 May 2018 · statute · Journal of Laws 2018 item 1000 · Polish Sejm (ELI)

Ustawa z dnia 10 maja 2018 r. o ochronie danych osobowych

...Niniejsza ustawa służy stosowaniu rozporządzenia Parlamentu Europejskiego i Rady (UE) 2016/679 z dnia 27 kwietnia 2016 r. w sprawie ochrony osób fizycznych...

Run this query in Repertorium →

Cites EU acts · PL-EU bridgeRegulation (EU) 2016/679 - GDPRDirective 95/46/EC - the GDPR's predecessorDirective (EU) 2016/680 - data in criminal matters

Top result from the console · as of 19 September 2026 · query and excerpt in the Polish original

Work

PATRON

AI that shows how it knows.

A local workspace for a lawyer, case files and AI. You choose the model: a local one that runs without a network, or a cloud one with your own key.

  • Local-first
  • Open source
  • 7 Polish and EU legal sources
  • Audit trail
  • Quote
  • Paraphrase
  • No basis
Download PATRONMeet PATRON
The PATRON application interface - the legal assistant's welcome screen

Extensions

Boutique

Ready-made skills and sources for AI.

Connectors reach into official gazettes and court databases, skills carry a procedure. You install what you need instead of buying another closed system.

45
MCP connectors
19
skills
35
jurisdictions
Open BoutiqueSee the connectors
  • NeuRIS / ELIGermanyApache-2.0
  • Fedlex / ELISwitzerlandApache-2.0
  • Camara dos Deputados & Congresso NacionalBrazilApache-2.0
  • Justice Laws WebsiteCanadaApache-2.0
  • Federal Register of LegislationAustraliaApache-2.0
Selected connectors from the catalogue

Working together

Technology is only the beginning.

First we check where AI actually makes sense. Then we design and deploy one specific process.

Book a readiness check
  1. Reliability Audit
  2. Architecture
  3. Deployment
  4. Training
Four ways in

You don't have to take all of it.

Each layer works on its own. Together they make an environment where the source, the tool and the person all stay under control.

Use it.

For law firms and lawyers

Repertorium in the console or in your AI assistant over MCP, PATRON on your own computer. You use the sources and tools where you already work.

Start with the search

Train with it.

For teams that build or evaluate models

Structured corpora of Polish and EU law for RAG, evaluation and fine-tuning. We agree the scope of sources and the licence terms in each contract, because every source has its own.

Ask about the corpus

Brand it.

For legaltech companies and software vendors

Repertorium over MCP or REST as the data layer of your product, under your brand. Your users get sources with a locator, and you do not build a corpus from scratch.

Ask about white label

Own it.

For organisations that keep queries in-house

A local package of data and tools that runs inside your own environment, with no network connection if needed.

Ask about a local package

And always: you can run any of these ways on your own machine, inside your own network.

What is new

What changed recently.

Releases and articles from the last few weeks; the articles are in Polish. The full PATRON change history is on the releases page, and the code is on GitHub.

  1. News · in Polish

    Scanned case files you can search, with no cloud and no retyping

    A new free skill in Boutique: text with page numbers, a local search tool and a report of unreadable pages and of files with the same text under different names. OCR runs on your own computer; the English version is in the Boutique in English.

  2. Knowledge Base · in Polish

    The model knows the old provision and still applies the new one. A Japanese team measured where it breaks.

    Huang et al. (arXiv 2026): across 26,000 civil judgments, nine leading models apply the new statute to cases governed by the old one. A review from the perspective of a Polish law firm.

  3. News · in Polish

    Claude merges chat and Cowork. A connector you add once now works in every conversation.

    Anthropic has folded two products into one Claude. One window solves the question of where to work, not where the law comes from, and that is where the Repertorium MCP connector comes in.

  4. Repertorium

    Public search in Repertorium, our corpus of EU and Polish law

    The first open version of the search console, with no account. It is the same search as the box at the top of this page.

  5. News · in Polish

    Latham bought Nvidia servers. The most interesting number in the story has 27 billion parameters.

    According to the Financial Times, the second-largest law firm in the US is fine-tuning open-weight models on its own hardware. We separate training a model from running it behind your own firewall.

  6. PATRON 1.3.0

    Each PATRON edition reads scans with the OCR model for its own language

    All nine editions recognised scans with the Polish OCR model, so a German contract produced text that only looked correct. The release also adds an evidence package the author of a document can export: the text, the verdict on each citation and the models used.

FAQ

The questions we hear first.

What is MateMatic, exactly?

We build the layer between law and AI: a corpus a model can cite, local tools for lawyers, ready-made skills to add, and deployments inside firms.

Do I have to use PATRON?

No. Repertorium, the connectors and the skills work with other clients and systems too.

Does the data have to go to the cloud?

No. PATRON can run locally, and Repertorium can be delivered as a local data pack.

Can I use Repertorium in my own product?

Yes. Remote access, training data, white label and local installation are all available.

Where does a firm start with AI?

By checking what it needs and what it risks. That is what the Reliability Audit is for.

AI that knows what it doesn't know.

  • Repertorium provides the knowledge.
  • PATRON provides the workspace.
  • Boutique adds the skills.
  • MateMatic deploys it where it is needed.
Explore Repertorium Talk to us