Officers of a British company

The British register publishes officers in open access, making it the simplest source in Europe on this point. Not to be confused with persons with significant control, which answer a different question and live on another route: an officer is not necessarily a controller, and the reverse is even more true.

See a real response (free) Get the quote for /v1/eu/entreprise/GB/{company_number}/dirigeants

What the route returns

Catalogue description, exactly as agents read it:

UK company officers live from Companies House, the official UK company registry, by company number (e.g. GB/00102498): active directors and secretaries with role, appointment date, nationality, occupation, country of residence and month+year of birth only — never a correspondence address (GDPR minimisation). Resigned-officer count included. Built for KYB and due diligence on director appointments and governance. Contains public sector information licensed under the Open Government Licence v3.0.

Expected identifier

British company number.

A wrongly formatted identifier returns 400 and is not billed — but it costs you a round trip. It is the leading cause of failed calls on the foreign routes.

Extract from a genuinely paid response

Dated snapshot from 2026-07-29, truncated to one item per array. It is not live data. The full extract is served free of charge from the samples surface, and the schema from the OpenAPI document.

{
 "pays": "GB",
 "company_number": "00000006",
 "nombre_actifs": 0,
 "nombre_demissionnes": 49,
 "tronque": false,
 "dirigeants": [
  {
   "nom": "<nom du dirigeant>",
   "fonction": "director",
   "nomme_le": null,
   "nationalite": null,
   "profession": null,
   "pays_de_residence": null,
   "naissance": null
  }
 ],
 "source": "Companies House (api.company-information.service.gov.uk). Contains public sector information licensed under the Open Government Licence v3.0 (Companies House).",
 "data_freshness": "Companies House temps réel (cache 24 h)"
}

Price and billing

Price: $0.01. The authoritative amount is the one in the 402 quote returned by the route itself — not this text, which derives from the same grid but is still just a page.

An error response cancels the payment: a 400, 404 or 503 is never billed. An upstream outage closes the route with a 503 rather than serving a degraded response.

Calling the route

# 1. Le devis, sans rien payer : la route répond 402 avec son montant
curl -i https://api.sirenic.eu/v1/eu/entreprise/GB/{company_number}/dirigeants

# 2. L'appel réglé — le client x402 paie le devis et rejoue la requête
npx x402-fetch https://api.sirenic.eu/v1/eu/entreprise/GB/{company_number}/dirigeants

# 3. Ou en MCP, dans Claude Code / Cursor / un agent
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

What this route does not do

Live query at the register: always current, but dependent on its availability. A register outage returns 503 and the call is not billed — never a degraded response.

Neighbouring routes

How you pay

Every route is paid per call, in USDC or EURC on the Base network, over the x402 protocol: no account to create, no API key, no subscription. The first call returns a 402 quote your client settles, then replays the call. A failed call is never billed.

Would you rather have a euro invoice and prepaid credits? That is in preparation, and we will not announce a date until it is open. Write to contact@sirenic.eu and we will let you know when it opens.

Paid responses are Ed25519-signed: you can later prove what was served to you, and when. The whole catalogue is free to read in the OpenAPI document and in llms.txt.

One call, end to end

# Client x402 (npm) — le devis 402 est réglé et l'appel rejoué automatiquement
npx x402-fetch https://api.sirenic.eu/v1/entreprise/552032534

# Ou en MCP, dans Claude Code / Cursor
claude mcp add --transport http sirenic https://api.sirenic.eu/mcp

Routes used and pricing

RoutePriceWhat it returns
/v1/eu/entreprise/GB/{company_number}/dirigeants (free sample)$0.01UK company officers live from Companies House, the official UK company registry, by company number (e.g. GB/00102498): active directors and secretaries with role, appointment date, nationality, occupation, country of residence and month+year of birth only — never a correspondence address (GDPR minimisation). Resigned-officer count included. Built for KYB and due diligence on director appointments and governance. Contains public sector information licensed under the Open Government Licence v3.0.

Take it further

No account to create, no key to request: the first step is free and shows you exactly what you would be buying.

See a real response (free) Get the quote for /v1/eu/entreprise/GB/{company_number}/dirigeants Get notified about euro packs

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