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UK Companies House Registry Lookup
x402
UK Companies House Registry Lookup is a paid API for AI agents from companies.use.x402atlas.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-10).
Look up UK companies by registration number or name in the official Companies House register, returning legal details and registered office information.
Price / call$0.05
Success—
StatusUnknown
How this service works
UK company lookup in the official Companies House register by company number or company name. Returns legal name, company status, company type, incorporation date, registered office address and SIC codes in a schema shared across countries.
Output
Returns a JSON object containing: the echoed query, country code (GB), registry name, match count, and an array of matched companies each with legal name, registration number, normalized status (active/inactive/unknown), legal form, incorporation date, registered office address (street, city, postal code, country code), SIC/activity codes, and website field.
Example use cases
Supplier due diligence check
“I need to verify the details of a supplier before signing a contract — can you look up 'Tesco PLC' in the UK Companies House register and tell me if they're active, when they were incorporated, and what their registered office address is?”
Verify company number on invoice
“I received an invoice with UK company number 04659351 on it — can you confirm the legal name and whether this company is still active according to Companies House?”
Research competitor legal structure
“I want to know the legal form, incorporation date, and SIC codes for the UK company registered as 'Deliveroo' — can you pull that from Companies House for me?”
Technical details
Endpoint
GEThttps://companies.use.x402atlas.com/gb?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need authoritative, structured UK company data directly from the official Companies House register — particularly for due diligence, KYC/AML compliance, invoice verification, or enriching CRM records with legal entity details. It uses a normalized schema shared across countries, making it ideal when building multi-country company lookup pipelines alongside sibling endpoints for Norway, Finland, France, Belgium, and Czech Republic.
Side effects
- No company found for the given name or number — returns count 0 with a note field
- Ambiguous company name returns multiple results requiring further disambiguation
- Invalid or malformed company number returns zero matches
- Network or upstream Companies House API unavailability causes request failure
- Query exceeds 200 character limit causing schema validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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