Slovak business registers in your own PostgreSQL

git clone https://github.com/accquix/register && cd register/deploy/compose
./make-secrets.sh        # random passwords and one API key, printed once
docker compose up -d     # PostgreSQL, migrate, API on :8080, hourly sync

Just looking? docker compose -f deploy/demo/compose.yaml up serves the same API over fictional data in seconds, with nothing to download: see Try the demo. Or let your AI agent do it: copy the prompt on the Quick start page. For integrating the API into your application, there is a prompt on Integrating an application.

extra on a server you already run: about 1 GB RAM and 10 GB disk

0 €

a managed database with room to spare (PlanetScale PS-10, Frankfurt)

≈$14/mo

the same with high availability, for checkout-critical use

≈$41/mo

searches a PS-10 serves with headroom; about 85 at the limit

≈30/s

Provider prices of November 2026, before tax and excluding the container that runs the API. See PlanetScale Postgres for the measured sizes, and check the providers’ current prices.

The data is public but scattered across agencies, and the commercial APIs charge per request or per year. The free Statistical Office API that many tools used stopped answering when the Register of Legal Entities moved to the Ministry of the Interior in June 2026. Accquix Register reads the official bulk files directly, so your instance depends on no one’s quota.

• A mirror of the official sources in your PostgreSQL:
  • the Register of Legal Entities (RPO) of the Ministry of the Interior: names, addresses, legal forms, registrations (court, oddiel and vložka, or the trade licensing office and number);
  • the Financial Administration lists: DIČ, IČ DPH and VAT paragraph, the reliability index and the risk lists.
• Daily updates that can be interrupted at any moment and resume cleanly.
• One search box for a name, IČO, DIČ or IČ DPH. It ignores diacritics and word order, matches the start of any word, shows the full address of each candidate, and can optionally correct typos.
• A lookup that returns each part of the answer with its source, its as-of date and a version for change detection, and says honestly when it does not know: every section is present, absent or unknown.
• One Go binary and plain PostgreSQL 16–18, including managed providers.

• No data is published by this project. Your instance downloads the data from the official sources, and you are the controller of your copy under GDPR. See Data and privacy.
• No public hosted API. Run your own.
• No history. The register keeps the current state of each record and when it last changed.
• Not a VAT validity oracle. It reports what the Financial Administration lists say, and as of when. For EU VAT numbers, query VIES yourself.

Release candidate 1.0.0-rc.1. The API and the other contracts are frozen for 1.0.0, under the stability policy. It is verified on the real data, including load tests on managed PostgreSQL. The first monthly reconcile against a new RPO snapshot, around 5 December 2026, is the last check before 1.0.0.

It is built and maintained by Accquix and published under the Apache-2.0 licence so that anyone can run it.