PRH (Finland business register)

live Data

Finnish Patent and Registration Office (PRH) — YTJ open data MCP.

2 tools
0ms auth
free tier 50 calls/day

Tools

search_companies

Search the Finnish business register (PRH / YTJ) by company name and/or filters. Results under {totalResults, companies:[...]}. Each company has businessId (Y-tunnus), names[], mainBusinessLine, compa

No parameters required.

▶ Try it
get_company

Full register record for one Finnish company by businessId (Y-tunnus, format NNNNNNN-N). e.g. {businessId:"0112038-9"} (Nokia Oyj). Returns names[] (with history), addresses[], companyForms[], mainBus

No parameters required.

▶ Try it

Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash 
curl -X POST https://gateway.pipeworx.io/prh-fi/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash 
curl -X POST https://gateway.pipeworx.io/prh-fi/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"search_companies","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript 
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("search_companies", {});
ask_pipeworx 
// Or ask in plain English:
const answer = await px.ask("finnish patent and registration office (prh) — ytj open data mcp");