@pipeworx/ares-cz

Connect: https://pipeworx.io/mcp — every tool in the catalog, including @pipeworx/ares-cz’s. Install: one-click buttons

No MCP client? Skip the connection: POST https://gateway.pipeworx.io/v1/tools/search_packs {"query":"..."} to find a tool below, GET /v1/tools/<name> for its schema, POST the same URL with arguments for the data — see For AI agents.

Tools: 3

Czech business register (ARES) — look up any Czech company or sole trader by IČO or by name, from the Ministry of Finance’s official register of economic subjects.

Tools

• ares_lookup_ico({ ico }) — one economic subject by its 8-digit IČO: registered trading name, legal form, seat address, founding date, dissolution date, DIČ (VAT) number, CZ-NACE activity codes.
• ares_search_name({ name, limit, offset, onlyActive }) — subjects whose trading name matches, with the total match count so a precise hit is distinguishable from a common word.
• ares_vat_reliability({ id }) — is a Czech VAT payer flagged as unreliable (nespolehlivý plátce DPH)? Takes a DIČ (VAT number, CZ prefix optional) or an IČO. Returns an explicit status, the date the flag was published, the tax office code, the published bank accounts and the register’s answer date.

Auth

Keyless. No registration, no header, no quota documented.

Data sources

• https://ares.gov.cz/ekonomicke-subjekty-v-be/rest/ekonomicke-subjekty/{ico} — one subject by IČO.

• https://ares.gov.cz/ekonomicke-subjekty-v-be/rest/ekonomicke-subjekty/vyhledat — POST search, returns pocetCelkem (total) plus a page of subjects.

• Czech Financial Administration (Finanční správa), register of unreliable VAT payers and published bank accounts — queried live per request, nothing copied. Reuse terms: public Czech state data, called as a client; no dataset is mirrored.

ARES is the Ministry of Finance’s consolidated view over the commercial register (OR), the trade register (RŽP), the statistical register (RES) and the VAT payer register — so one IČO answers questions that would otherwise need three lookups.

Traps

• IČO must be zero-padded to 8 digits on the REST path. “177041” 404s, “00177041” resolves; the pack pads for you.
• A dissolved company still resolves. active is derived from whether datumZaniku is present, not from the lookup succeeding — treating a 200 as “still trading” is wrong.
• pocet (page size) caps at 200 and a larger value is a 400, so the pack clamps instead of passing through.
• Field names in raw stay Czech on purpose; the mapped fields are renamed to English so a caller does not need to know obchodniJmeno is the trading name.

VAT reliability: the three answers that must not be confused

• status: "unreliable" — flagged; unreliable_since is the publication date.
• status: "reliable" — a registered VAT payer that is NOT flagged.
• status: "not_a_vat_payer" — the number is not in the VAT payer register at all (not registered, deregistered, or wrong). Not a clean bill of health.
• A malformed id is an error, never a result: the register itself answers “not found” to garbage, so the pack validates first.
• Individuals (personal-number DIČ, not 8 digits) get status only; name, address and bank accounts are withheld.
• published_accounts is the list of accounts the payer registered for VAT; paying elsewhere can make the buyer liable for the VAT.

Tools

• ares_lookup_ico — One Czech company or sole trader, by IČO, from the official ARES register.
• ares_search_name — Czech companies matching a name, with their IČO, from the official ARES register.
• ares_vat_reliability — Is a Czech VAT number flagged as an unreliable payer? Status, since-when, published bank accounts.