Check a UK company on the official Companies House register by company number
Check a UK company on the official Companies House register by company number: name, status (active, dissolved, liquidation), type, incorporation date, registered address, SIC codes, accounts due or overdue, charges, insolvency history and current directors. Use for supplier checks, due diligence, or confirming a business is real and active. Errors: 400 invalid number, 404 not found.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
1387 msmedian answer time
$0.005listed price per call
$0.005price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://agent-tools-production-e6aa.up.railway.app/v1/uk-company/:number
| Category | Company and compliance |
|---|---|
| Provider host | agent-tools-production-e6aa.up.railway.app |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.005 | 1387 ms |
Example input (from the provider)
{
"method": "GET",
"pathParams": {
"number": "00445790"
},
"queryParams": {},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"properties": {
"number": {
"description": "Company number, e.g. 00445790 (leading zeros optional)",
"type": "string"
}
},
"required": [
"number"
],
"type": "object"
},
"queryParams": {
"properties": {},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}