# ARES Czech company search

Search Czech economic subjects in ARES by business name, IČO list, legal form, CZ-NACE code or municipality of the registered office. Takes name, icos, legal forms and more, all optional.

Search Czech economic subjects in ARES by business name, IČO list, legal form, CZ-NACE code or municipality of the registered office. Returns total count and matching subjects (name, IČO, address, legal form, NACE).

- Tool ID: `ares/search`
- Provider: [ARES](/providers/ares.md)
- Capability: [Company registries & KYB](/tools/b2b-data/company-registries.md)
- Price: no charge per call
- Authentication: an authorised Agentik workspace is required for execution, including zero-price tools.

## Pricing contract

No charge per call. A workspace is still needed so your agent can call it.


```json
{
  "model": "per_call",
  "amountUsd": 0
}
```

## Complete input schema


```json
{
  "type": "object",
  "properties": {
    "name": {
      "type": "string",
      "minLength": 1,
      "maxLength": 2000,
      "description": "Business name words, e.g. 'pivovar'"
    },
    "icos": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^[0-9]{8}$"
      },
      "maxItems": 25,
      "description": "IČO numbers to fetch in one call, e.g. ['00177041', '45274649']"
    },
    "legal_forms": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^[0-9]{3}$"
      },
      "maxItems": 20,
      "description": "Legal form codes, e.g. ['112'] (s.r.o.) or ['121'] (a.s.)"
    },
    "nace": {
      "type": "array",
      "items": {
        "type": "string",
        "pattern": "^[0-9A-Z]{1,5}$"
      },
      "maxItems": 20,
      "description": "CZ-NACE codes, e.g. ['11050'] (beer)"
    },
    "municipality_code": {
      "type": "integer",
      "minimum": 1,
      "maximum": 999999,
      "description": "Municipality code (RÚIAN) of the registered office, e.g. 554782 (Prague)"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 25,
      "default": 10,
      "description": "Subjects to return (1-25), e.g. 10"
    },
    "offset": {
      "type": "integer",
      "minimum": 0,
      "maximum": 10000,
      "default": 0,
      "description": "Offset of the first subject, e.g. 0"
    }
  },
  "anyOf": [
    {
      "required": [
        "name"
      ]
    },
    {
      "required": [
        "icos"
      ]
    },
    {
      "required": [
        "nace"
      ]
    },
    {
      "required": [
        "legal_forms"
      ]
    }
  ],
  "additionalProperties": false
}
```

## Published example

This is the provider tool’s published example. Replace example values with the user’s requested inputs, respecting the schema; do not execute an example merely to test a connection.


```json
{
  "tool_id": "ares/search",
  "input": {
    "name": "pivovar",
    "legal_forms": [
      "112"
    ],
    "nace": [
      "11050"
    ],
    "limit": 3
  }
}
```

## Execute and retrieve

Inspect again before execution, explain the price and obtain the required authority. Use MCP run_tool or POST /v1/run with this tool ID, valid input and an idempotency key. Save the returned run ID and follow the actual state. If Agentik answers that the tool is temporarily unavailable, do not retry it blindly; use discovery to propose an alternative.

A partial or uncertain result can still have consumed provider resources. Consult [billing](/docs/billing.md), [idempotency](/docs/idempotency.md) and [asynchronous results](/docs/async.md).

Licence: ARES operating conditions (Ministry of Finance of the Czech Republic): free public use, at most 500 requests per minute.

Attribution: Source: ARES, Ministry of Finance of the Czech Republic (information only, not legally binding).

[Provider documentation](https://ares.gov.cz/swagger-ui/)

[REST inspection](https://api.agentik.cc/v1/tools/ares/search) · [OpenAPI](/openapi.json) · [Connection guide](/connect.md)

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[HTML page](/providers/ares/search) · [Agent index](/llms.txt)