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UK Companies House Company Search
x402
UK Companies House Company Search is a paid API for AI agents from property.payapi.market, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-17).
Searches UK Companies House for company records matching a free-text query, returning names, addresses, company numbers, and statuses.
Price / call$0.001
Success—
StatusUnknown
How this service works
Production API for UK sold prices, rental yields, and stamp duty. Paid via x402 protocol. Designed for AI agent consumption.
Output
A JSON object containing the original query, total number of results found, and an array of matching company records each with: company title, registered address, Companies House number, company status (e.g. active, dissolved), and date of creation.
Example use cases
Due diligence on a UK supplier
“I need to verify a supplier called 'Brightline Solutions Ltd' — can you search Companies House for them and tell me their company number, registered address, and whether they're still active?”
Finding a UK company's registration number
“What's the official Companies House number for Unilever PLC? Search for 'Unilever' and return the top 3 results so I can identify the right entity.”
Identifying related UK corporate entities
“I'm researching Barclays — can you search Companies House for 'Barclays' and return up to 20 results so I can see all the different registered entities under that name?”
Technical details
Endpoint
POSThttps://property.payapi.market/company-search?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to search UK Companies House records by company name and retrieve official registration data including company numbers, addresses, and status. It is the right choice for due diligence, supplier verification, corporate research, or finding official company identifiers for UK entities. Prefer it over generic web searches when you need structured, authoritative Companies House data with a known schema.
Side effects
- Empty results array if no companies match the query string
- Query too vague returning irrelevant results up to the limit
- Rate limiting or payment failure via x402 protocol returning a 402 status
- Limit parameter out of range (must be 1–50) causing a validation error
- Stale or incomplete Companies House data for recently incorporated or dissolved companies
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Max matches to return. Defaults to 10. |
| query | string | Free-text query against UK Companies House. |
Output
Schema · Response
{
"type": "json",
"example": {
"query": "Tesco",
"results": [
{
"title": "TESCO PLC",
"address": "Tesco House, Shire Park, Welwyn Garden City",
"company_number": "00445790",
"company_status": "active",
"date_of_creation": "1947-11-27"
},
{
"title": "TESCO STORES LIMITED",
"address": "Tesco House, Welwyn Garden City",
"company_number": "02406289",
"company_status": "active",
"date_of_creation": "1989-08-04"
}
],
"total_results": 2
}
}Tags
x402
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