# Sirenic Polish Company Insolvency (KRS)

> Sirenic Polish Company Insolvency (KRS) is a paid API for AI agents from api.sirenic.eu, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-29).

Returns all insolvency and restructuring proceedings for a Polish company, drawn from the official KRS extract (Ministry of Justice), including case numbers, courts, dates, and dismissed petitions.

## Facts

- Endpoint: GET https://api.sirenic.eu/v1/eu/entreprise/PL/:krs/insolvabilite?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sirenic-polish-company-insolvency-krs-4538b0b9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JE9tYP9EWyBgmdLZdxUGJ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability sirenic-polish-company-insolvency-krs-4538b0b9
```

Example prompt: Pull up the full insolvency history for the Polish company with KRS number 0000034143 — I need to see every bankruptcy, restructuring, or liquidation proceeding ever entered, whether open or closed, along with the court names and case numbers.

## When to prefer this

Use this endpoint when you need official, government-source insolvency data for a Polish company identified by its KRS number. It covers the full historical record from registration, including closed and dismissed cases, sourced directly from the Ministry of Justice open API. Prefer this over third-party credit bureau data when legal accuracy and official provenance are required, or when screening Polish entities specifically for due diligence, compliance, or credit risk workflows.

## Known failure modes

- 404 returned if KRS number belongs to a non-qualifying entity (foreign entrepreneur branch, professional partnership, entity not proven a legal person) — payment is cancelled in this case
- Proceeding not yet entered in KRS will not appear in results (lag between court event and KRS update)
- Invalid or malformed KRS number (not 10 digits, or not a KRS number) returns an error
- KRS number of a natural person or unregistered entity not accepted

## How this service works

Polish company insolvency from the official KRS extract (Ministry of Justice, open API, live): every proceeding entered since registration, open or closed (bankruptcy, restructuring, arrangement, liquidation, dissolution, suspension of activity) with court, case number and dates, plus dismissed bankruptcy petitions and protective measures. Trustees, liquidators and other persons omitted, counted. A proceeding not yet entered is not seen. Query: /v1/eu/entreprise/PL/0000034143/insolvabilite.

## Output

A structured list of all insolvency-related proceedings entered in the KRS for the specified Polish company since registration, including proceeding type (bankruptcy, restructuring, arrangement, liquidation, dissolution, suspension), status (open or closed), court name, case number, and relevant dates. Also includes dismissed bankruptcy petitions and protective measures. Trustees, liquidators, and other persons are omitted but counted. If no proceedings exist, the list is empty. Returns 404 if the KRS number corresponds to a form not covered (foreign entrepreneur branch, professional partnership, or non-legal-person entity).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "krs"
     ],
     "properties": {
      "krs": {
       "type": "string",
       "description": "10-digit KRS number, leading zeros required (not the NIP, not the REGON), e.g. 0000034143. A form off the served list (foreign entrepreneur or its branch, professional partnership, any form not proven a legal person) returns 404, payment cancelled."
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sirenic-polish-company-insolvency-krs-4538b0b9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.sirenic.eu](https://www.zero.xyz/host/api.sirenic.eu/llms.txt)