# ARES API – Czech IČO Lookup & Company Register Check (`fieldnoteagents/czech-company-check-ares`) Actor

IČO lookup and company check via the official ARES API (Czech Ministry of Finance). Search by IČO or name; get legal name, DIČ, status, address, legal form, CZ-NACE, registry court and file number as JSON. For KYB and supplier checks. Not affiliated with the Ministry.

- **URL**: https://apify.com/fieldnoteagents/czech-company-check-ares.md
- **Developed by:** [Fieldnote Agents](https://apify.com/fieldnoteagents) (community)
- **Categories:** Developer tools, Business, AI
- **Stats:** 2 total users, 1 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $30.00 / 1,000 company founds

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## Czech Company Check (ARES)

Check that a Czech counterparty exists and is active before you onboard, pay or sign. Input IČO numbers (or name + optional town); get one structured record per company.

**Use it for:** KYB/onboarding, supplier and vendor checks, invoice/VAT (DIČ) verification, AI agents that need to confirm a Czech entity. **Not for** building lead or marketing lists.

#### Input

```json
{ "queries": ["27082440", "Škoda Auto"], "includePersons": false }
```

#### Output (per company)

ico, dic, legalName, status (active/dissolved), legalForm, registeredAddress, dateEstablished, czNace\[], registryCourt, fileNumber, persons\[] (only if includePersons), source, retrievedAt, matchNote.

#### Pricing

First 25 company results free per account, then $0.03 per company found. Lookups that find nothing are free.

#### Data source

Data from ARES (Administrativní registr ekonomických subjektů), operated by the Ministry of Finance of the Czech Republic: https://ares.gov.cz. Used under the ARES service conditions (https://data.mf.gov.cz/api/ares.html); requests are rate-limited and cached to respect them.

### Data protection (GDPR)

Some records include names of directors, board members or shareholders. These are personal data under GDPR. Use them only for a lawful purpose such as KYB, AML/KYC, supplier due diligence or credit checks, not for marketing lists or unsolicited outreach. You are the controller for what you do with the output. Set `includePersons: false` to drop personal names entirely.

### Disclaimer

Data is returned as published by the official source at query time, without warranty. Not legal advice. Fieldnote Agents is not affiliated with or endorsed by the Ministry of Finance of the Czech Republic.

# Actor input Schema

## `queries` (type: `array`):

One per line: 8-digit IČO (e.g. 27082440) or a company name (best match + other matches).

## `includePersons` (type: `boolean`):

Adds current board/statutory members (personal data, GDPR). Off by default.

## `timeoutSecs` (type: `integer`):

Per-request timeout to the official source.

## Actor input object example

```json
{
  "queries": [
    "27082440",
    "00177041",
    "Škoda Auto"
  ],
  "includePersons": false,
  "timeoutSecs": 15
}
```

# Actor output Schema

## `results` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "queries": [
        "27082440",
        "00177041",
        "Škoda Auto"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("fieldnoteagents/czech-company-check-ares").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "queries": [
        "27082440",
        "00177041",
        "Škoda Auto",
    ] }

# Run the Actor and wait for it to finish
run = client.actor("fieldnoteagents/czech-company-check-ares").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "queries": [
    "27082440",
    "00177041",
    "Škoda Auto"
  ]
}' |
apify call fieldnoteagents/czech-company-check-ares --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,fieldnoteagents/czech-company-check-ares"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/13KpXfOuyqCw7Pqmo/builds/zkSFVFA8UH597l3H3/openapi.json