Czech Company Registry (ARES) Tools
Czech ARES company registry: VAT, insolvency, RÚIAN addresses, IČO/DIČ checks. All free, no auth.
| Endpoint | https://czid.casuyi.com/mcp (streamable-http) |
|---|---|
| Registry version | 1.0.1 |
| Now | 6 tools · grade A (98) · pin ts_26bed3c86b7d1e3a850f0a991c19bd71 · protocol 2025-06-18 |
| First / last listed | 2026-10-27 06:01 UTC / 2026-10-27 06:01 UTC |
| Grade over time | 2026-10-27: A (98), 6 tools |
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Tools: company_lookup check_vat entity_status search_company validate_cz address_check
company_lookup | Basic register (ARES) lookup: name, legal form, registered address, NACE, data-box, VAT DIČ. Input: IČO (8 digits) or DIČ (CZ+10). params: id* |
check_vat | Plátce-DPH status from the ARES RZP record, cross-checked against the ARES DPH source flag. RZP is a HISTORICAL register (records can stop updating in 2016), so a positive here is not proof of current plátcost — the result carries registerState + caution when the two disagree. For a legally binding check use the MOF DPH register (ADISREG). Batch up to 20 IČOs. params: ids* |
entity_status | KYC-style snapshot: active/cancelled, which registers the entity appears in (VR, RZP, IR insolvency, NRPZS, RCNS, SZR...), plus an insolvency presence flag (IR). Insolvency is presence-only — case detail needs ISIR. params: id* |
search_company | Company-name search in ARES (prefix match, case-insensitive; no wildcards). Returns IČOs + names + addresses for further lookups. params: name*, limit |
validate_cz | Checksum/format validation: IČO (mod-11), DIČ (CZ+IČO or birth number), IBAN (mod-97, CZ-specific), variable symbol. Pure local, no network. params: ico, dic, iban, variableSymbol |
address_check | Free-text Czech address -> RÚIAN-standardized (full KOD ADM, codes for obec/část/ulice, correct PSC). params: address* |
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