# Sirenic UK Company Insolvency Lookup

> Sirenic UK Company Insolvency Lookup is a paid API for AI agents from api.sirenic.eu, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-11).

Returns the official UK insolvency status of a company (liquidation, administration, receivership, etc.) with case dates and practitioner details, sourced live from Companies House.

## Facts

- Endpoint: GET https://api.sirenic.eu/v1/eu/entreprise/GB/:company_number/insolvabilite?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sirenic-uk-company-insolvency-lookup-09b23079
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HLkZJnOr0vewjeDPb-rQn

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-uk-company-insolvency-lookup-09b23079
```

Example prompt: Can you check whether UK company number 04553597 has any insolvency proceedings on record — liquidation, administration, or anything like that — using the live Companies House data?

## When to prefer this

Choose this endpoint when you need authoritative, live insolvency data for a UK-registered company directly from Companies House. It is the definitive source for UK insolvency proceedings and explicitly confirms when a company has NO recorded cases (aucune_procedure: true), making it suitable for compliance workflows, supplier vetting, and credit risk checks where a clean bill of health is as important as finding a problem. Prefer over manual Companies House searches or third-party credit bureau data when you need structured, machine-readable insolvency records at low cost.

## Known failure modes

- Invalid or malformed company number returns an error — leading zeros must be included
- Company number not found in Companies House register returns an error response
- NI or SC prefix company numbers are accepted but must be formatted correctly
- Network or upstream Companies House API outage may cause 5xx errors
- Requesting a company number with incorrect formatting (e.g. missing leading zeros) may return no result

## How this service works

UK company insolvency record, live from Companies House by company number: liquidation (compulsory or voluntary), administration, receivership and other cases with their dates and insolvency practitioners (name and role only, no addresses; one under an objection is left out, counted in praticiens_omis). A company with NO recorded case returns an explicit positive answer (200, aucune_procedure): the register is authoritative. Open Government Licence v3.0 (Companies House).

## Output

A JSON response containing: a boolean aucune_procedure field (true if no insolvency case exists, confirming the company is clean), and if cases exist, a list of insolvency proceedings each with case type (e.g. compulsory liquidation, voluntary liquidation, administration, receivership), relevant dates, and insolvency practitioners with their name and role. A 200 response with aucune_procedure: true is itself an authoritative positive fact from the register.

## 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": [
      "company_number"
     ],
     "properties": {
      "company_number": {
       "type": "string",
       "description": "Companies House company number, leading zeros required; NI/SC prefixes accepted (NI017460). No recorded case AND no status returns 200 with aucune_procedure: true (a paid positive fact)."
      }
     }
    },
    "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-uk-company-insolvency-lookup-09b23079/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)