# UK Companies House Official Company Lookup

> UK Companies House Official Company Lookup is a paid API for AI agents from agentdata-api.sander-van-aard.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Looks up a UK company by number or name against the official Companies House register, returning status, type, dates, address, SIC codes, insolvency flags, and charges.

## Facts

- Endpoint: POST https://agentdata-api.sander-van-aard.workers.dev/uk/company
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uk-companies-house-official-company-lookup-62e3e944
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SOT5ZQpZWzn4xL_V9kPej

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 uk-companies-house-official-company-lookup-62e3e944 -d '<json body>'
```

Example prompt: Can you check the official Companies House register for 'Rolls-Royce Holdings' and tell me its company number, current status, registered address, and whether it has any insolvency history or charges?

## When to prefer this

Use this endpoint when you need authoritative, official UK company data directly from the Companies House register — ideal for KYC, counterparty due diligence, contract verification, or confirming a company's legal standing. Prefer this over third-party data aggregators when official government registry accuracy is required for UK-registered companies specifically.

## Known failure modes

- Company not found — no matching record in Companies House register
- Ambiguous name search returns up to 5 candidates requiring further disambiguation
- Invalid or malformed company number returns an error
- Service unavailable if Companies House API is down
- Payment failure (x402) if USDC balance is insufficient

## How this service works

Official UK company check from the Companies House register. Look up by company number (exact) or search by name (up to 5 candidates). Returns official name, status (active/dissolved/liquidation), type, incorporation and cessation dates, registered office, SIC codes, and the register's insolvency-history and charges flags, with a direct Companies House link. Companies only.

## Output

Returns the official company name, current status (active/dissolved/liquidation/etc.), company type, incorporation and cessation dates, registered office address, SIC codes, boolean flags for insolvency history and charges, and a direct link to the Companies House record. Up to 5 candidates returned when searching by name.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object"
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "headers": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": {
      "type": "string"
     }
    }
   },
   "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/uk-companies-house-official-company-lookup-62e3e944/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agentdata-api.sander-van-aard.workers.dev](https://www.zero.xyz/host/agentdata-api.sander-van-aard.workers.dev/llms.txt)