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UK Companies House Lookup by Company Number
x402
UK Companies House Lookup by Company Number is a paid API for AI agents from x402-agent-tools.nerolabs.workers.dev, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-22).
Looks up UK company details from Companies House by company number, returning name, status, type, address, incorporation date, SIC codes, and officer information for up to 20 companies per call.
Price / call$0.01
Success—
StatusUnknown
How this service works
Pay-per-call tools for AI agents, 31 in all: read web pages and RSS feeds, OCR, PDF text, transcription; email, phone and domain checks; UK, Irish and Polish company lookups and UK risk reports; website contacts, tech stack and SEO audits; PageSpeed; AI review, job post and row enrichment; data cleaning, joins, dedupe and diffs; US and EU compliance rules. No account or API key: pay each call in USDC on Base over x402.
Output
Returns a JSON object with a 'rows' array (one entry per company) and a count. Each row includes: company name, company number, status, type, incorporation date, registered address, SIC codes, accounts due date, confirmation statement due date, officer list, a Companies House URL, change detection fields (changeDetected, changes, changeSummary, isFirstCheck), whether the record was found (notFound flag), and the timestamp of the check (checkedAt).
Example use cases
Supplier due diligence check
“Before we sign a contract with this supplier, can you pull their Companies House record for company number 03977902 and tell me if they're active, what type of company they are, and when their last accounts were due?”
Bulk company status verification
“I have a list of UK company numbers — 00445790, 03977902, and 01234567 — can you look them all up on Companies House and tell me which ones are still active and which have been dissolved?”
Prospecting enrichment for UK businesses
“I'm researching potential acquisition targets. Can you fetch the Companies House data for company number 07896541, including their SIC codes, incorporation date, and registered address?”
Technical details
Endpoint
POSThttps://x402-agent-tools.nerolabs.workers.dev/company/uk?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative UK company registry data from Companies House, especially for due diligence, supplier verification, or compliance workflows. It supports batch lookups of up to 20 companies per call at $0.01 each, making it cost-effective for enrichment pipelines. Prefer this over manual Companies House searches or web scraping when you need structured, machine-readable output including officer details and filing due dates.
Side effects
- Company number not found (notFound: true in the row)
- Invalid or malformed company number (not 8 characters)
- Exceeding 20 company numbers per call
- Companies House API unavailability or rate limiting
- Payment failure or insufficient USDC balance
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| companyNumber | string | Exact 8-character Companies House number, e.g. 03977902. Use this for a single-record lookup. |
| companyNumbers | array | A list of exact Companies House numbers. Required for Monitor mode (that's what gives each company a stable identity to track over time). Also the fastest way to check many known companies in one run. |
Output
Schema · Response
{
"type": "json",
"example": {
"rows": [
{
"changes": [],
"notFound": false,
"checkedAt": "2026-10-21T14:29:40.118Z",
"companyName": "TESCO PLC",
"monitorMode": false,
"isFirstCheck": true,
"changeSummary": "Monitor mode is off, this is a one-time lookup.",
"companyNumber": "00445790",
"companyStatus": "active",
"changeDetected": false,
"companiesHouseUrl": "https://find-and-update.company-information.service.gov.uk/company/00445790"
}
],
"count": 1,
"_example_note": "Real output, trimmed: long lists cut to their first items, fields and text shortened."
}
}Tags
x402
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