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Czech Company Registry (ARES) Tools

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io.github.appvantagelabs2-a11y/czidv1.0.1

Czech ARES company registry: VAT, insolvency, RÚIAN addresses, IČO/DIČ checks. All free, no auth.

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https://czid.casuyi.com/mcp

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address_check

Free-text Czech address -> RÚIAN-standardized (full KOD ADM, codes for obec/část/ulice, correct PSC).

addressstring, required

e.g. "Václavské náměstí 1, Praha"

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Tools

Czech Company Registry (ARES) Tools MCP server | mcptry

address_check

Free-text Czech address -> RÚIAN-standardized (full KOD ADM, codes for obec/část/ulice, correct PSC).

Argument	Type	Description
address*	string	e.g. "Václavské náměstí 1, Praha"

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "address"
  ],
  "properties": {
    "address": {
      "type": "string",
      "minLength": 3,
      "description": "e.g. \"Václavské náměstí 1, Praha\""
    }
  }
}

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.

Argument	Type	Description
ids*	array	IČOs or DIČs (CZ+10)

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "ids"
  ],
  "properties": {
    "ids": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "maxItems": 20,
      "minItems": 1,
      "description": "IČOs or DIČs (CZ+10)"
    }
  }
}

company_lookup

Basic register (ARES) lookup: name, legal form, registered address, NACE, data-box, VAT DIČ. Input: IČO (8 digits) or DIČ (CZ+10).

Argument	Type	Description
id*	string	IČO (e.g. 27082440) or DIČ (e.g. CZ27082440)

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "IČO (e.g. 27082440) or DIČ (e.g. CZ27082440)"
    }
  }
}

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.

Argument	Type	Description
id*	string	IČO or DIČ

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "IČO or DIČ"
    }
  }
}

search_company

Company-name search in ARES (prefix match, case-insensitive; no wildcards). Returns IČOs + names + addresses for further lookups.

Argument	Type	Description
name*	string	Company name or name prefix (e.g. "Alza")
limit	integer	Max results (default 10)

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "name"
  ],
  "properties": {
    "name": {
      "type": "string",
      "minLength": 2,
      "description": "Company name or name prefix (e.g. \"Alza\")"
    },
    "limit": {
      "type": "integer",
      "maximum": 50,
      "minimum": 1,
      "description": "Max results (default 10)"
    }
  }
}

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.

Argument	Type	Description
dic	string
ico	string
iban	string
variableSymbol	string

Input schema (JSON)

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "dic": {
      "type": "string"
    },
    "ico": {
      "type": "string"
    },
    "iban": {
      "type": "string"
    },
    "variableSymbol": {
      "type": "string"
    }
  }
}