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Sirenic Polish KRS Company Registry Lookup
x402
Sirenic Polish KRS Company Registry Lookup is a paid API for AI agents from api.sirenic.eu, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Look up a Polish company by KRS number against the official Krajowy Rejestr Sądowy (Ministry of Justice) registry, returning legal name, form, status, incorporation date, and registered office.
Price / call$0.01
Success—
StatusUnknown
How this service works
Official Polish company registry lookup (KRS, Krajowy Rejestr Sądowy, the National Court Register of Poland). Query: /v1/eu/entreprise/PL/0000006865 (10-digit KRS number). Returns legal name, legal form, normalized status, incorporation date and registered office, live from KRS (officers anonymized at the source). A foreign entrepreneur or its branch, a professional partnership or a form off the list: 404, not billed.
Output
A unified JSON object containing the company's official legal name, legal form (e.g. spółka z o.o.), normalized status (active/inactive), incorporation date, and registered office address — sourced live from the Polish KRS Ministry of Justice registry. Officer details are anonymized at source.
Example use cases
Supplier due diligence before payment
“Before I wire payment to this Polish vendor, can you check KRS number 0000931645 in the official Polish company registry and confirm they're still active, what legal form they are, and where their registered office is?”
Onboarding a new Polish business client
“We're onboarding a new Polish company and I need to verify their details — their KRS number is 0000127371. Can you pull their official registry data: legal name, incorporation date, legal form, and current status?”
Investigating a Polish counterparty
“I'm doing a background check on a Polish firm — KRS 0000006865. Can you get me their official legal name, whether they're still registered and active, their legal form, and when they were incorporated, straight from the KRS?”
Technical details
Endpoint
GEThttps://api.sirenic.eu/v1/eu/entreprise/PL/:id?utm_source=zero.xyzWhen to prefer
Use this endpoint when you specifically need official Polish company registry data keyed by KRS number. It returns live, authoritative data directly from the Polish Ministry of Justice. Prefer it over generic business data aggregators when legal accuracy and official source provenance matter — e.g. for KYB/KYC, supplier verification, legal due diligence, or e-invoicing compliance in Poland. Not suitable for lookups by company name, NIP, or REGON — those require different endpoints.
Side effects
- KRS number not found — company does not exist in the registry (404)
- Invalid KRS number format — must be exactly 10 digits including leading zeros (400)
- KRS registry temporarily unavailable — upstream source outage
- Passing NIP or REGON instead of KRS number — different identifier types not accepted
- Omitting leading zeros from the KRS number causing a lookup failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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