# Insolvency of a Czech company

38,337 cases are in the database. This piece is under a closing age guard, and that matters especially here: a “no proceedings” answer is only worth something if the copy is fresh. A frozen stock would turn stale silence into a certificate of absence.

## What the route returns

Catalogue description, exactly as agents read it:

**Czech company insolvency from ISIR, the official insolvency register of Czechia, since 2008. Query: /v1/eu/entreprise/CZ/45274649/insolvabilite (8-digit IČO). Every proceeding — bankruptcy (konkurs), reorganisation (reorganizace): case number, court, status, dates, its 100 most recent events with document links. Publication is compulsory by law: no proceeding is an explicit positive answer. LEGAL PERSONS ONLY: a natural person's IČO (sole trader — most Czech IČOs) is refused, never cleared.**

## Expected identifier

Czech IČO identifier, legal persons only.

> ⚠️ A wrongly formatted identifier returns `400` and is **not billed** — but it costs you a round trip. It is the leading cause of failed calls on the foreign routes.

## Extract from a genuinely paid response

Dated snapshot from 2026-07-29, truncated to one item per array. It is not live data. The full extract is served **free of charge** from [the samples surface](https://api.sirenic.eu/exemples/), and the schema from the OpenAPI document.

```
{
 "pays": "CZ",
 "id_national": "49193881",
 "aucune_procedure": false,
 "procedures": [
  {
   "affaire": "INS 9/2008",
   "debiteur": "ZRK Čekanice s.r.o.  v likvidaci",
   "tribunal": "KSZPCPM",
   "etat": "VYRIZENA",
   "ouverture": "2008-01-03T14:15:17Z",
   "nombre_evenements": 9,
   "evenements_tronques": false,
   "evenements": [
    {
     "id": 1946,
     "publie_le": "2008-01-14T09:36:31Z",
     "type": 83,
     "description": "Usnesení o zamítnutí insolvenčního návrhu pro nedostatek majetku dlužníka",
     "etat": "VYRIZENA"
    }
   ]
  }
 ],
 "collecte_le": "2026-07-31",
 "source": "ISIR — Insolvenční rejstřík (Ministerstvo spravedlnosti ČR), web service public isir.justice.cz"
}
```

## Price and billing

Price: **$0.02**. The authoritative amount is the one in the `402` quote returned by the route itself — not this text, which derives from the same grid but is still just a page.

An error response **cancels the payment**: a `400`, `404` or `503` is never billed. An upstream outage closes the route with a `503` rather than serving a degraded response.

## Calling the route

```
# 1. Le devis, sans rien payer : la route répond 402 avec son montant
curl -i https://api.sirenic.eu/v1/eu/entreprise/CZ/{ico}/insolvabilite

# 2. L'appel réglé — le client x402 paie le devis et rejoue la requête
npx x402-fetch https://api.sirenic.eu/v1/eu/entreprise/CZ/{ico}/insolvabilite

# 3. Ou en MCP, dans Claude Code / Cursor / un agent
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp
```

## Neighbouring routes

- `/v1/eu/entreprise/CZ/{id}` — $0.01
- `/v1/eu/entreprise/GB/{company_number}/insolvabilite` — $0.02

## How you pay

Every route is paid **per call**, in USDC or EURC on the Base network, over the x402 protocol: no account to create, no API key, no subscription. The first call returns a `402` quote your client settles, then replays the call. A failed call is never billed.

Would you rather have a euro invoice and prepaid credits? That is **in preparation**, and we will not announce a date until it is open. Write to [contact@sirenic.eu](mailto:contact@sirenic.eu?subject=Euro%20credit%20packs) and we will let you know when it opens.

Paid responses are **Ed25519-signed**: you can later prove what was served to you, and when. The whole catalogue is free to read in the [OpenAPI document](https://api.sirenic.eu/openapi.json) and in [llms.txt](https://api.sirenic.eu/llms.txt).

**One call, end to end**

```
# Client x402 (npm) — le devis 402 est réglé et l'appel rejoué automatiquement
npx x402-fetch https://api.sirenic.eu/v1/entreprise/552032534

# Ou en MCP, dans Claude Code / Cursor
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp
```

## Routes used and pricing

| Route | Price | What it returns |
| --- | --- | --- |
| `/v1/eu/entreprise/CZ/{ico}/insolvabilite` | $0.02 | Czech company insolvency from ISIR, the official insolvency register of Czechia, since 2008. Query: /v1/eu/entreprise/CZ/45274649/insolvabilite (8-digit IČO). Every proceeding — bankruptcy (konkurs), reorganisation (reorganizace): case number, court, status, dates, its 100 most recent events with document links. Publication is compulsory by law: no proceeding is an explicit positive answer. LEGAL PERSONS ONLY: a natural person's IČO (sole trader — most Czech IČOs) is refused, never cleared. |

## Take it further

- [See a real response (free)](https://api.sirenic.eu/exemples/eu-entreprise-CZ-ico-insolvabilite.json)
- [Get the quote for /v1/eu/entreprise/CZ/{ico}/insolvabilite](https://api.sirenic.eu/v1/eu/entreprise/CZ/{ico}/insolvabilite)
- [Get notified about euro packs](mailto:contact@sirenic.eu?subject=Euro%20credit%20packs)

## Read next

- [Detecting insolvency proceedings](https://api.sirenic.eu/en/use-cases/detect-insolvency-proceedings-france-europe)

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Volume figures on this page were measured in our database on 2026-08-19. They are dated snapshots, not live counters.

Full catalogue : https://api.sirenic.eu/