Company register · IE

Ireland company register API for AI agents

Look up companies in the Companies Registration Office (CRO) with one MCP or REST call. Free, read-only, no API key. Every answer carries source, source URL, licence and retrieval time.

What the answer is based on

Register: Companies Registration Office (CRO) · official site
Identifier: company number; name search also works.
Data source used by Mandate: Companies Registration Office (CRO) open data, Company Records · publisher documentation
Licence or reuse terms: CC BY 4.0 (CRO open data portal). Source: Companies Registration Office Ireland.

Call it

MCP (Streamable HTTP, JSON-RPC over POST)

curl -s https://mandateoffice.com/mcp \
  -H 'Content-Type: application/json' -H 'Accept: application/json, text/event-stream' \
  -d '{"jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": {"name": "get_company", "arguments": {"country": "IE", "query": "249885"}}}'

REST

curl -s 'https://mandateoffice.com/api/company/IE/249885'

Part of the live answer (retrieved 2026-10-30; persons and addresses left out here)

{
  "name": "RYANAIR HOLDINGS PUBLIC LIMITED COMPANY",
  "company_number": "249885",
  "type": "PLC - Public Limited Company",
  "status": "Normal ",
  "registered": "1996-06-05",
  "register_url": "https://core.cro.ie/"
}

Also useful

All live company registers · /api/registries (all 27 EU states, live or link-only)
Any EU VAT number: get_company with id_type: "vat" (VIES). LEI: GLEIF.
Forming a company in Ireland: LTD guide

Information only, no legal advice. Mandate Office never files documents or registrations on anyone's behalf. Check every fact at its source before relying on it. Data as published by the Mandate Office API on 2026-10-30; the API is the current version.