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Verify UK Company Number Validator
x402
Verify UK Company Number Validator is a paid API for AI agents from verify-uk.verifyuk.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).
Validates a UK Companies House company number, checking format correctness and normalising it, with a hint about the company type (e.g. Scottish).
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call UK verification tools for AI agents: validators, business checks and website trust checks from official UK public data. Pay with USDC via x402 - no account, no API key.
Output
A JSON object indicating whether the company number is valid (true/false), the normalised form of the number (e.g. 'SC123456'), and a human-readable hint about the company type (e.g. 'Scottish company', 'England and Wales company').
Example use cases
Supplier onboarding compliance check
“Before we add this supplier to our system, can you validate their UK company number 07688696 and confirm it's properly formatted?”
KYC data quality screening
“I've got a list starting with company number 00445790 — can you verify it's a valid UK Companies House number and tell me if there's anything unusual about the format?”
User-submitted registration number check
“A user just entered 'NI123456' as their company number on our form — can you validate whether that's a legitimate UK company number format?”
Technical details
Endpoint
GEThttps://verify-uk.verifyuk.workers.dev/v1/validate/company-number?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, format-level validation of a UK Companies House company number without making a live lookup against the Companies House API. It is ideal for pre-screening user input, data quality checks, and KYC pipeline steps where you want instant, pay-per-call validation with no account setup. If you need live company details (officers, filings, status), use a full Companies House API integration instead.
Side effects
- Missing or empty 'number' query parameter returns a 400 error
- Malformed company number (wrong length or invalid characters) returns valid=false with no normalised value
- Payment not included or failed x402 flow returns 402 Payment Required
- Service unavailable returns 503 with no validation result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"valid": true,
"normalised": "SC123456",
"company_type_hint": "Scottish company"
}
}Tags
x402
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