Czech Company Registry (ARES) Tools
io.github.appvantagelabs2-a11y/czid · v1.0.1 · MCP 2026-07-28
Czech ARES company registry: VAT, insolvency, RÚIAN addresses, IČO/DIČ checks. All free, no auth.
Reachability
reachable
checked 2026-09-20 05:31 UTC
Registry status active
Tools pinned 6
002ed81a7e9f
Tools last changed
2026-09-17
Provenance
Registry namespace io.github.appvantagelabs2-a11y
(GitHub-account verified by the official registry)
Website
https://czid.casuyi.com/
Remote endpoints
https://czid.casuyi.com/mcp (streamable-http)
Observed changes
| When (UTC) | Event | Detail |
|---|---|---|
| 2026-09-17 05:31 | tools changed | 0 added, 0 removed, 6 changed |
| 2026-09-16 05:30 | first capture | 6 tools pinned |
Pinned tool definitions (6)
| Tool | Description |
|---|---|
| company_lookup | Basic register (ARES) lookup: name, legal form, registered address, NACE, data-box, VAT DIČ. Input: IČO (8 digits) or DIČ (CZ+10). |
| check_vat | Authoritative plátce-DPH status from RZP register: payer yes/no, effective from, tax office, trade licences. Use before issuing/czech invoicing. Batch up to 20 IČOs. |
| entity_status | KYC-style snapshot: active/cancelled, which registers the entity appears in (VR, RZP, NRPZS, RS insolvency, RCNS, SZR...), plus insolvency-register record if present. |
| search_company | Company-name search in ARES (prefix match, case-insensitive; no wildcards). Returns IČOs + names + addresses for further lookups. |
| 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. |
| address_check | Free-text Czech address -> RÚIAN-standardized (full KOD ADM, codes for obec/část/ulice, correct PSC). |
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