RegistryCzechia

Czech ISIR Insolvency Register API

Debtor and case records from the Czech insolvency register (ISIR). You get clean, structured records with the source registry attached - keyed off the IČO identifier.

Run ISIR on Apify Install the skills

What you get

→Structured JSON, not HTML or PDFs
→Source registry attached to every record
→Read live at query time - current filings
→Queried by IČO or company name

python · regdata/czech-isir-insolvency-scraper

from apify_client import ApifyClient

client = ApifyClient("apify_api_xxxxx")
run = client.actor("regdata/czech-isir-insolvency-scraper").call(
    run_input={"ico": "35763469"}
)
for item in client.dataset(run["defaultDatasetId"]).iterate_items():
    print(item)

Fields

What each ISIR record contains

Field	What it holds
name	string \| Company name or surname to look up.
watchlist	array \| A list of names to check in one run (the monitoring use case). Overrides name.
ico	array \| One or more Czech IČO registration numbers.
firstName	string \| Optional first name to narrow an individual-debtor search.
city	string \| Optional city (obec) to narrow the search.
includeEnded	boolean \| Include closed/ended proceedings as well as active. Default true.
maxResults	integer \| Max debtor records to export (register returns up to 400 per query). Default 100.
Country	Actors
---	---
Poland	[BDO](https://apify.com/regdata/bdo-waste-registry-scraper) · [CRBR](https://apify.com/regdata/crbr-beneficial-owners-scraper) · [KRS (financials)](https://apify.com/regdata/poland-krs-financial-scraper) · [EKW](https://apify.com/regdata/ekw-ksiegi-wieczyste-scraper) · [KNF](https://apify.com/regdata/knf-registry-scraper) · [KRS (board)](https://apify.com/regdata/krs-fullnames-scraper) · [KRZ](https://apify.com/regdata/krz-debtor-scraper) · [MSiG](https://apify.com/regdata/msig-scraper) · [KYB check](https://apify.com/regdata/poland-kyb-check) · [PEP (Sejm)](https://apify.com/regdata/poland-parliamentary-pep-scraper) · [REGON (sites)](https://apify.com/regdata/polish-premises-prospector) · [REGON](https://apify.com/regdata/polish-regon-scraper) · [UOKiK](https://apify.com/regdata/uokik-clauses-scraper)
Germany	[Insolvenzbekanntmachungen](https://apify.com/regdata/germany-insolvency-scraper) · [Handelsregister](https://apify.com/regdata/germany-handelsregister-scraper)
Spain	[BORME](https://apify.com/regdata/borme-corporate-acts-scraper) · [Registro Mercantil](https://apify.com/regdata/spain-company-directory-scraper) · [Registro Público Concursal](https://apify.com/regdata/spain-concursal-scraper)
Italy	[INI-PEC](https://apify.com/regdata/italy-pec-lookup) · [Registro Imprese](https://apify.com/regdata/italy-registro-imprese-scraper)
Austria	[Ediktsdatei](https://apify.com/regdata/austria-ediktsdatei-scraper) · [WKO](https://apify.com/regdata/wko-business-directory-scraper)
France	[Societe.com](https://apify.com/regdata/societe-com-scraper)
Belgium	[KBO / BCE](https://apify.com/regdata/belgium-kbo-company-scraper)
Czechia	ISIR (this actor)
Slovakia	[RPVS](https://apify.com/regdata/slovakia-rpvs-ubo-scraper)
Cyprus	[DRCOR](https://apify.com/regdata/cyprus-drcor-company-scraper)
Ireland	[CRO](https://apify.com/regdata/ireland-cro-company-scraper)
Portugal	[Publicações MJ](https://apify.com/regdata/portugal-corporate-acts-scraper)
Nigeria	[CAC](https://apify.com/regdata/nigeria-cac-company-scraper)
Colombia	[RUES](https://apify.com/regdata/colombia-rues-company-scraper)
USA	[California SoS](https://apify.com/regdata/california-sos-business-scraper) · [California UCC](https://apify.com/regdata/california-ucc-lien-scraper)
UAE	[ADGM](https://apify.com/regdata/uae-adgm-public-register-scraper)
Global	[Adverse media](https://apify.com/regdata/adverse-media-screener)

Sample record (JSON, people masked)

{
  "debtorName": "…",
  "debtorType": "company",
  "ico": "41035623",
  "caseNumber": "KSOS 39 INS 1072 / 2009",
  "court": "Krajského soudu v Ostravě",
  "proceedingStatus": "ended",
  "detailUrl": "https://isir.justice.cz/isir/ueu/evidence_upadcu_detail.do?id=bc62ca53-...",
  "commercialRegisterUrl": "https://or.justice.cz/ias/ui/rejstrik-$firma?ico=41035623&jenPlatne=PLATNE",
  "matchedQuery": "Bau",
  "jurisdiction": "CZ",
  "source": "ISIR - Insolvenční rejstřík (Ministerstvo spravedlnosti ČR)",
  "sourceUrl": "https://isir.justice.cz/isir/ueu/vysledek_lustrace.do",
  "retrievedAt": "2026-07-02T00:00:00.000Z"
}

Serves these use cases

Insolvency & credit-risk watchlist Contract & ESG compliance audit

FAQ

Does ISIR have an API?

ISIR (Czechia) does not offer a clean public API for programmatic queries. getregdata reads the official source directly and returns structured JSON, keyed off the IČO identifier - so you get API-like access without an official endpoint.

How do I get ISIR data programmatically?

Install the getregdata agent skills or MCP server, or run the regdata/czech-isir-insolvency-scraper actor on Apify. Query by IČO or company name and receive structured, source-attributed records. It is free to install; you pay per result on Apify.

What data does ISIR return?

Debtor and case records from the Czech insolvency register (ISIR).

Get a free sample of ISIR data

Not ready to run it yourself? Tell us which companies or filters you need. We run it once and send you the file, and a quote if you want it regularly. No newsletter, no sales calls.

Prefer e-mail? [email protected] · We use your details only to answer you. Privacy

Related guides

Cross-Border Credit Risk: Screen Companies Across Poland + Austria in 2 API Calls 6 min → Austrian Insolvency Monitoring Without IWG License: Ediktsdatei on Apify 4 min → European Business Registry Data as Agent Skills 4 min → European Compliance Scraper Reliability: BORME and Societe.com Configuration Guide 4 min →