ARES API – Czech IČO Lookup & Company Register Check
Pricing
from $30.00 / 1,000 company founds
ARES API – Czech IČO Lookup & Company Register Check
IČO lookup and company check via the official ARES API (Czech Ministry of Finance). Search by IČO or name; get legal name, DIČ, status, address, legal form, CZ-NACE, registry court and file number as JSON. For KYB and supplier checks. Not affiliated with the Ministry.
Pricing
from $30.00 / 1,000 company founds
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Fieldnote Agents
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Czech Company Check (ARES)
Check that a Czech counterparty exists and is active before you onboard, pay or sign. Input IČO numbers (or name + optional town); get one structured record per company.
Use it for: KYB/onboarding, supplier and vendor checks, invoice/VAT (DIČ) verification, AI agents that need to confirm a Czech entity. Not for building lead or marketing lists.
Input
Output (per company)
ico, dic, legalName, status (active/dissolved), legalForm, registeredAddress, dateEstablished, czNace[], registryCourt, fileNumber, persons[] (only if includePersons), source, retrievedAt, matchNote.
Pricing
First 25 company results free per account, then $0.03 per company found. Lookups that find nothing are free.
Data source
Data from ARES (Administrativní registr ekonomických subjektů), operated by the Ministry of Finance of the Czech Republic: https://ares.gov.cz. Used under the ARES service conditions (https://data.mf.gov.cz/api/ares.html); requests are rate-limited and cached to respect them.
Data protection (GDPR)
Some records include names of directors, board members or shareholders. These are personal data under GDPR. Use them only for a lawful purpose such as KYB, AML/KYC, supplier due diligence or credit checks, not for marketing lists or unsolicited outreach. You are the controller for what you do with the output. Set includePersons: false to drop personal names entirely.
Disclaimer
Data is returned as published by the official source at query time, without warranty. Not legal advice. Fieldnote Agents is not affiliated with or endorsed by the Ministry of Finance of the Czech Republic.
