UK Company Data

Look up a UK company at Companies House by company number or name. Returns name, status, incorporation date, SIC codes and registered address.

Pay by wallet (x402) AI-generated United Kingdom: all company records uk-company-data

Example

Example answer

{
  "status": "active",
  "address": "424 London Road, Westcliff-On-Sea, SS0 9LA, England",
  "sic_codes": [
    "82911"
  ],
  "has_charges": false,
  "company_name": "FALSE DEMANDS - DO NOT PAY AS SOMEONE ELSE USING COMPANY NAME LTD",
  "jurisdiction": "england-wales",
  "business_type": "ltd",
  "company_number": "10843886",
  "dissolution_date": null,
  "incorporation_date": "2017-06-30"
}

Inputs

Field	Type	Required	What it is
`company_name`	string	No	Registered company name
`company_number`	string	No	UK Companies House number (8 characters, including any letter prefix); company names are also accepted for compatibility

Output fields

How reliably each field appears in a successful answer.

Field	Type	Appears
`status`	string	Always (present in every successful answer)
`address`	string	Always (present in every successful answer)
`sic_codes`	array	Usually (present for most inputs)
`has_charges`	boolean	Always (present in every successful answer)
`company_name`	string	Always (present in every successful answer)
`jurisdiction`	string or null	Always (present in every successful answer)
`business_type`	string	Always (present in every successful answer)
`company_number`	string	Always (present in every successful answer)
`tier_2_available`	boolean	Always (present in every successful answer)
`ubo_availability`	string	Always (present in every successful answer)
`incorporation_date`	string	Always (present in every successful answer)
`legal_representatives`	array	Usually (present for most inputs)
`tier_2_available_reason`	string	Always (present in every successful answer)
`ubo_availability_reason`	string	Always (present in every successful answer)
`total_legal_representatives`	integer	Not stated
`match_confidence`	—	Sometimes (present only for some inputs)
`matched_registry_name`	—	Sometimes (present only for some inputs)

How to call it

The same tool through each route. MCP clients reach it through Strale’s server at https://api.strale.io/mcp; the call below is what the agent sends.

# Needs an API key. max_price_cents caps what this call may cost.
curl -X POST https://api.strale.io/v1/do \
  -H "Authorization: Bearer $STRALE_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "capability_slug": "uk-company-data",
    "inputs": {
      "company_number": "00445790"
    },
    "max_price_cents": 5
  }'

{
  "tool": "strale_execute",
  "arguments": {
    "slug": "uk-company-data",
    "inputs": {
      "company_number": "00445790"
    },
    "max_price_cents": 5
  }
}

import { Strale } from "straleio";

const strale = new Strale({ apiKey: process.env.STRALE_API_KEY! });
const result = await strale.do({
  capability_slug: "uk-company-data",
  inputs: {
    "company_number": "00445790"
  },
  max_price_cents: 5,
});

import os
from straleio import Strale, DoRequest

strale = Strale(api_key=os.environ["STRALE_API_KEY"])
result = strale.do(DoRequest(
    capability_slug="uk-company-data",
    inputs={
        "company_number": "00445790",
    },
    max_price_cents=5,
))

# No account. The first request answers 402 with the price in USDC;
# an x402 client pays it from your wallet and repeats the request.
curl -i 'https://api.strale.io/x402/v2/uk-company-data?company_number=00445790'

Limitations

Sole traders and unregistered partnerships are excluded
Data from Companies House API — LLPs and Scottish LPs included, but sole traders and partnerships are not registered
What to do instead: For sole traders, check HMRC's contractor verification or use the business name with google-search