Not a CRO certified document or a credit rating. Open Companies Registration Office data, explained. Details
For agents — machine access
This site publishes a machine door: an agent can read the dataset without guessing the page.
Machine access8/9
This is not a badge: every line points to the file that proves it, and the only missing one is listed too.
- servedversioned manifest
- servedfield schema, with fill rates
- servedreal sample, read from a served fragment
- servedtools declared and served
- servedfree bulk download
- servedcallable MCP server
- servedllms.txt
- servedreal 404 page
- missinglog of agent visits to THIS site
End-to-end example
The code Galway, taken from this register's real sample. An agent connected to the MCP server sends:
POST https://mcp-registres.cloudflare33-7aa.workers.dev/mcp
{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"resolve_code","arguments":{"registre":"CRO number lookup — Irish company register","code":"Galway"}}}and receives this record:
| county | Galway |
|---|---|
| active | 15046 |
| late_annual_return | 1325 |
| late_fee_estimate_eur | 1262104 |
| page | https://cro-number.pages.dev/county/galway/ |
Without the server: FNV-1a 32-bit of Galway, modulo 97, gives 0 — the record is in /e/0.json, on the line starting with that code.
Example computed when the site is generated, from a real row — no value is written by hand.
The files
| Tools | /api/v1/tools.json |
|---|---|
| Manifest | /api/v1/manifest.json |
| Extract | /api/v1/echantillon.json |
Tools served
describe_datasetget_sampleresolve_codeget_schemarequest_datasetexport_dataset
Reserved
These paths exist and answer statut: reserve. ⚠️ They say what is missing instead of returning a 404.
changes_since— reserved
⚠️ The HTML pages and the tools that read them are free and stay free. Only the built layer — reconciliation, linkage, history — can be charged for.
The service level, and its limit
Regulation (EU) 2023/138 requires Member States to publish certain datasets — so-called high-value — free of charge, machine-readable, with an API and bulk download. We apply that service level to everything we publish, including what the law does not require.
⚠️ This register is not presented as a high-value dataset in the legal sense. It is a service level we impose on ourselves, not a regulatory guarantee — and bulk download stays free at the official source, which is named on this site.
One MCP server for the whole portfolio
This register's tools are callable over MCP under its name, from a single entry point: https://mcp-registres.cloudflare33-7aa.workers.dev/mcp. A client adds one connector and gets all published registers, not just this one.
⚠️ Without that server this register's resolver would be mute to the outside: an agent would have to reimplement our hash function to know which fragment to read. ⛔ And a remote MCP server is added by hand in the client: it makes this register callable, not findable. How to use it.
This register is listed in the catalogue registres.pages.dev.