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Sirenic Czech Company Registry Lookup (ARES)
x402
Sirenic Czech Company Registry Lookup (ARES) is a paid API for AI agents from api.sirenic.eu, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Looks up a Czech company by its 8-digit IČO number against the official ARES registry, returning legal name, form, status, incorporation date, registered office, and VAT number (DIČ).
Price / call$0.01
Success—
StatusUnknown
How this service works
Official Czech company registry lookup (ARES — register of economic subjects, Ministry of Finance of Czechia). Query: /v1/eu/entreprise/CZ/45274649 (8-digit IČO / ICO identifier). Returns legal name, legal form, normalized status, incorporation date, registered office and the DIČ (DIC) VAT number — Czech company data live from ARES, the official register of companies in Czechia. Unified JSON schema shared by all Sirenic European company profiles.
Output
A unified JSON object containing the company's legal name, legal form, normalized status (e.g. active/inactive), incorporation date, registered office address, and DIČ VAT number — sourced live from the Czech ARES register.
Example use cases
Supplier due diligence before payment
“Before we wire money to this Czech supplier, can you pull their company details from the official Czech registry using IČO 27082440 — I need their legal name, registration status, and registered office address to make sure they're legitimate.”
Invoice VAT number validation
“A Czech vendor just sent me an invoice with company IČO 48136450 — can you look them up in the ARES registry and confirm their DIČ VAT number and legal name so I can check it matches what's on the invoice?”
Czech company incorporation date lookup
“I need to know when Czech company with IČO 25596641 was incorporated and what its current legal status is — can you check the official ARES registry for me?”
Technical details
Endpoint
GEThttps://api.sirenic.eu/v1/eu/entreprise/CZ/:idWhen to prefer
Use this endpoint when you need authoritative, live Czech company data directly from the official Ministry of Finance ARES registry. Prefer this over generic business data aggregators when legal accuracy is required — e.g. for KYC, invoice validation, supplier verification, or compliance workflows involving Czech entities. It provides a normalized, unified JSON schema consistent with Sirenic's wider European company data platform.
Side effects
- Invalid IČO format (not exactly 8 digits) — returns error
- Company not found in ARES for the given IČO — returns not found response
- ARES upstream service unavailable — may return timeout or 502
- Payment failure via x402 protocol — request not processed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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