Company register · FI
Finland company register API for AI agents
Look up companies in the Trade Register (PRH) / Business Information System (YTJ) 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: Trade Register (PRH) / Business Information System (YTJ) · official site
- Identifier: Business ID (Y-tunnus, 1234567-8); name search also works.
- Data source used by Mandate: Finnish Patent and Registration Office (PRH), YTJ open data API v3
- Licence or reuse terms: PRH open data. Mention the original source (Finnish Patent and Registration Office); do not use PRH or YTJ logos (https://avoindata.prh.fi/en).
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": "FI", "query": "0112038-9"}}}'
REST
curl -s 'https://mandateoffice.com/api/company/FI/0112038-9'
Part of the live answer (retrieved 2026-10-30; persons and addresses left out here)
{
"name": "Nokia Oyj",
"business_id": "0112038-9",
"legal_form": "Public limited company",
"status": "2",
"registered": "1978-03-15",
"register_url": "https://tietopalvelu.ytj.fi/yritys/0112038-9"
}
Also useful
- All live company registers · /api/registries (all 27 EU states, live or link-only)
- Any EU VAT number:
get_companywithid_type: "vat"(VIES). LEI: GLEIF. - Forming a company in Finland: Oy guide