Peru RUC Check

Terms of Use

These terms apply when you use Peru RUC Check: the website, the REST API and the MCP server, run by HALPII S.A.C., Lima, Peru. By using the service you accept them.

What the service is

An informational tool that checks tax IDs against public sources and shows what they say, as of the date shown with each result. The pass, review and fail verdict is an automatic summary of that data.

  • Peru RUC: SUNAT's public registry (Padrón Reducido del RUC).
  • Mexico RFC: the RFC's structure and check digit, and SAT's public lists under articles 69-B and 69 of the Código Fiscal de la Federación. Mexico publishes no RFC registry, so the service never confirms that an RFC is registered or active.
  • Colombia NIT: the DIAN check digit and the RUES commercial registry kept by the chambers of commerce. It is not DIAN tax status.
  • Costa Rica cédula (beta): the Ministerio de Hacienda's public taxpayer lookup, an endpoint Hacienda has not formally documented and that may change.
  • Norway, Finland, France, Ireland and Taiwan: the official open company registries listed below. Ireland is a daily snapshot, not a live query. The French source does not show insolvency proceedings and leaves out units whose data is not publicly disseminable.
  • Other countries: an offline check of the number's structure and check digit. It does not show that the business exists or is active.

Colombia data licence and attribution

Colombian registry data comes from RUES – Confecámaras, via datos.gov.co, published under the Creative Commons Attribution-ShareAlike 4.0 International licence (CC BY-SA 4.0). Every Colombia response carries that attribution in its source field. Results derived from that data, on our pages and in the API, are shared under the same CC BY-SA 4.0 licence: if you republish them, keep the attribution and the licence. This licence applies to the Colombian registry data only; it does not change the rules below for the rest of the service.

Other registry data: licences and attribution

Every response from these registries carries its attribution, licence and the date of the data in its source field. The data stays available to you under its own open licence: our terms below do not restrict what that licence allows you to do with it. Our responses are derived from that data; the registries do not endorse them.

  • It is not legal, tax or accounting advice. For a decision that matters, confirm on SUNAT's own lookup at e-consultaruc.sunat.gob.pe and ask a qualified adviser.
  • We are not affiliated with SUNAT, SAT, DIAN, Confecámaras, the chambers of commerce, Costa Rica's Ministerio de Hacienda, the Brønnøysund Register Centre, PRH, INSEE, the French government, the Companies Registration Office Ireland or Taiwan's Ministry of Economic Affairs. None of them endorses or operates this service.

No warranty

The service is provided "as is" and "as available". The registry copy or the live source can be out of date, incomplete or wrong, and the service can be interrupted. When a live source does not answer, the API returns HTTP 503 and that call is not billed and does not count against your limit. To the extent the law allows, HALPII S.A.C. gives no warranty and is not liable for decisions made, payments released or losses suffered because of a result.

Acceptable use

  • Do not resell, republish or redistribute the registry data in bulk, or use the service to build a copy of a registry or list. (Colombian data you receive stays available to you under CC BY-SA 4.0, and Norwegian, Finnish, French, Irish and Taiwanese data under the licences listed above.)
  • Do not try to get around the limits, for example by rotating IP addresses or creating many API keys.
  • Do not use the service to attack, overload or probe it, or to break the law.
  • Keep your API key private. You are responsible for the use made of your key.

We may block keys or networks that break these rules.

Limits and changes

Daily limits, plans and prices can change. We will show the current ones on the home page and in the API docs. We may also change these terms; the date below shows the latest version.

Law and contact

These terms are governed by the laws of Peru. Questions: contacto@halpii.com. See also our Privacy Policy.

Last updated: November 14, 2026