# CelerAPI Company Owners Lookup

> CelerAPI Company Owners Lookup is a paid API for AI agents from www.celerapi.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-10).

Retrieves live ownership and beneficial owner data for a UK company by company number from Companies House

## Facts

- Endpoint: GET https://www.celerapi.com/v1/company/%7BcompanyNumber%7D/owners?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/celerapi-company-owners-lookup-5cc13fcb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DK8TXRdaQxpuK1R2qMD9V

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 celerapi-company-owners-lookup-5cc13fcb
```

Example prompt: Who are the registered owners and persons with significant control for UK company number 09876543? I need the current beneficial ownership data straight from Companies House.

## When to prefer this

Choose this endpoint when you need live, structured beneficial ownership data for a UK-registered company directly from the authoritative Companies House registry. Prefer this over scraping or third-party aggregators when accuracy, freshness, and provenance traceability are required — particularly for KYB compliance, M&A due diligence, or investigative research. Best suited for per-request lookups where you have a specific UK company registration number.

## Known failure modes

- Invalid or non-existent company number returns an error or empty data object
- Company has no filed ownership data (e.g. newly registered or exempt entity) may return empty owners list with warnings
- Rate limiting or payment failure returns a 402 Payment Required response
- Malformed company number format may return a validation error
- Companies House API downtime may result in stale or unavailable data

## How this service works

Resolve companies, legal entities and financial reference data using authoritative sources. Machine-native, pay per request, no subscription.

## Output

A JSON object containing structured ownership data for the specified UK company, including persons with significant control, shareholders, and ownership percentages. The response includes a success flag, completeness indicator, any data warnings, and provenance metadata confirming the data comes live from UK Companies House with GB jurisdiction.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "success": true,
  "complete": true,
  "warnings": [],
  "provenance": {
   "source": "UK Companies House",
   "registry": "companies_house",
   "freshness": "live",
   "jurisdiction": "GB"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/celerapi-company-owners-lookup-5cc13fcb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.celerapi.com](https://www.zero.xyz/host/www.celerapi.com/llms.txt)