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Sirenic Czech Company Insolvency (ISIR)
x402
Sirenic Czech Company Insolvency (ISIR) is a paid API for AI agents from api.sirenic.eu, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Returns the full insolvency history of a Czech legal entity from the official ISIR register, including all proceedings, case details, and the 100 most recent events with document links.
Price / call$0.02
Success—
StatusUnknown
How this service works
Czech company insolvency from ISIR, the official insolvency register of Czechia, since 2008. Query: /v1/eu/entreprise/CZ/45274649/insolvabilite (8-digit IČO). Every proceeding — bankruptcy (konkurs), reorganisation (reorganizace): case number, court, status, dates, its 100 most recent events with document links. Publication is compulsory by law: no proceeding is an explicit positive answer. LEGAL PERSONS ONLY: a natural person's IČO (sole trader — most Czech IČOs) is refused, never cleared.
Output
Returns all insolvency proceedings on record for the queried Czech legal entity: for each proceeding, the case number, court name, proceeding type (bankruptcy/konkurs or reorganisation/reorganizace), current status, key dates, and the 100 most recent events with links to official documents. If no proceedings exist, the absence itself is an explicit positive answer (company is not insolvent). Returns 404 if the IČO belongs to a natural person (sole trader), which is refused and not processed.
Example use cases
Supplier due diligence before contract signing
“We're about to sign a major supply agreement with a Czech company whose IČO is 27082440 — can you check whether they have any insolvency or bankruptcy proceedings in the ISIR register before we commit?”
Credit risk check on Czech business partner
“I need to assess credit risk on a Czech firm, IČO 49193881. Pull their full insolvency history from the official Czech register and tell me if there are any konkurs or reorganizace cases, including dates and current status.”
Automated KYC compliance screening
“As part of our KYC process, please verify whether Czech legal entity with IČO 60193336 has ever been subject to insolvency proceedings in the ISIR register, and give me the case numbers and court details if any exist.”
Technical details
Endpoint
GEThttps://api.sirenic.eu/v1/eu/entreprise/CZ/:ico/insolvabiliteWhen to prefer
Use this endpoint when you need authoritative, legally compulsory Czech insolvency data sourced directly from ISIR for a known legal entity (not a natural person). It is the only source for official Czech insolvency proceedings since 2008. Prefer this over general business data APIs when the specific question is insolvency status, bankruptcy, or reorganisation for Czech companies. Do not use for French companies (use the Sirenic BODACC endpoint) or for natural persons / sole traders.
Side effects
- 404 entreprise_individuelle_non_servie — IČO belongs to a natural person / sole trader; payment is cancelled
- 502 — unrecognised legal form for the given IČO
- IČO not found in register — company does not exist or number is incorrect
- Malformed IČO (not 8 digits) results in validation error
- Network timeout or upstream ISIR register unavailability
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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