Upload a PDF, or connect a connector?

The most common way to give AI a piece of legislation is to upload it as a PDF. That works for a single statute and a single question. As soon as you need case law, historical versions, or multiple statutes, you run into trouble. This guide compares both approaches objectively, including situations where a PDF is actually the better option.
Connector or Uploading a Law as a PDF? A Comparison
Europaius Malta: Corpus Contents

The examples in this guide are based on Czech law. The same tools also work with the Europaius Malta corpus:

4 883
Laws
553
Laws with AI explanation

Europaius Malta → · Search

Where PDFs fall short

How a connector works

A connector does not upload anything in advance. When queried, the AI calls a search function, receives only the relevant sections or decisions, and answers based on those. The corpus is updated continuously, includes historical versions, and contains over 980,000 decisions that could never fit into any chat. Every result carries a link to the full text, so the citation can be verified.

Token consumption is lower, since only a few thousand characters of results enter the context instead of hundreds of pages. And the connection is set up once; from then on it works in every conversation.

When a PDF is the right choice

Internal guidelines, a client's contract, a collective agreement, articles of association: these are documents that no corpus contains, and they belong in the AI as a file. The ideal combination is to upload your own document and let the AI compare it against legislation from the connector. For example: you upload a lease agreement, the AI checks it against the relevant tenancy provisions from the corpus, and flags clauses that are invalid because they disadvantage the tenant.

Comparison at a glance

Uploading a PDF: a single statute, current as of the download date, no case law, manual maintenance, higher token consumption, suitable for your own documents. Connector: the entire corpus, both current and historical versions, case law with full text, zero maintenance, lower consumption, suitable for public law. The best results come from combining both.

Connect Europaius to Your AI
The connector address is the same for all tools. Sign in with your email, done in under two minutes.
https://mcp.europaius.com/mcp
Connection Guide → · Pricing

Frequently Asked Questions

Can I use a connector and uploaded documents in the same conversation?

Yes, that is the recommended approach. Your own document as a file, plus legislation and case law from the connector.

What about Projects in Claude or GPTs with an uploaded library of statutes?

They work better than a one-off upload, but have the same limitations in scope and currency. A connector supplements them with case law and up-to-date versions.

Is a connector slower than an uploaded document?

For Czech sources, it responds within seconds. The first query for a foreign jurisdiction may take a little longer, but subsequent queries are fast.

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All Guides: Microsoft Copilot and Legal Sources: Europaius MCP Connector · Perplexity with the Europaius legal corpus: custom MCP connector · Legal corpus in Claude Code, Cursor and VS Code via MCP · AI in a Law Firm: Deployment with Verified Sources · AI for In-House Lawyers: Contracts, Compliance, Fast Answers · AI for Accountants and Tax Advisors: Laws and Case Law · Case Law Research with AI: NS, NSS and ÚS in One Chat · Comparing Law Across EU Countries with AI: One Query, 25 Countries · Employment Law with AI: Dismissals & Severance Pay · Tenancy Law and AI: Notice, Deposit, Rent Increases by Law · GDPR and AI Compliance: Regulation, Statute and Case Law Combined · Europaius MCP Connector Security: OAuth, Data, Tokens · Custom AI Agent with a Legal Corpus: MCP SDK and API Key · Statutory Interpretations in AI: Clear, No Hallucinations · Pricing and Limits of the Europaius MCP Connector

General information only; does not replace legal advice. Connecting the connector requires a Europaius account (free of charge). More About Europaius · Europaius MT