EU Business & VAT Checker

Validate VAT, LEI & registries. People also call this EU Business Check, EU VAT Checker, VIES VAT Validator, LEI Lookup. The tool names below are unchanged, so an existing client keeps working.

Validate an EU VAT number on VIES, look up an LEI, or search a company register. Ask "is ES A28015865 a valid VAT number?", "what is the LEI of Siemens AG?" or "find the registered company called Equinor in Norway".

EU Business and VAT Checker asks the official sources directly: the European Commission's VIES service for VAT numbers, the GLEIF Global LEI Index for Legal Entity Identifiers, and two national registers, the French Sirene register (through the api.gouv.fr company search) and the Norwegian Enhetsregisteret. People also call it EU Business Check.

Use it to validate a VAT number or a tax identification number before a reverse-charge invoice, or as the register step of a vendor onboarding or KYB check. It does not calculate the reverse charge and it does not score credit. The French registration number on a Kbis extract is the SIREN; this tool returns that register record, not the extract itself.

A VAT check says whether a number is registered for VAT in an EU member state or Northern Ireland on the day of the check. When the registered name and address are published they are shown, but only for legal entities: a name without a legal-form marker such as GmbH, SA, SRL or Limited could be a private person, so it is withheld. Some countries, such as Germany and Spain, do not publish a name at all. If you give your own VAT number, VIES also issues a consultation number that proves the check was made.

LEI and registry results show the legal name, status, legal form, registration number, address and, where published, activity and size. Sole proprietors are left out of every result because they are registered under a private person's name.

It reads only these public registers. It does not rate a company's credit, solvency or reputation, does not cover other countries' registers, and a register can lag behind a change by days. Always check an important detail on the register itself.

It stores nothing about you: answers are cached for up to an hour, except a check that asks for a consultation number, and the only lasting record is a daily count of calls per tool.

Tools

• check_vat_number: Validate an EU VAT number on VIES
• find_company_lei: Look up a Legal Entity Identifier
• lookup_company_registry: Search a French SIREN or Norwegian register

Use it for a VAT check, a VIES consultation number, or a SIREN on a French extract. It does not score credit and it does not look up a private person.

The server is https://eubusiness.openkrill.app/mcp and needs no key. Install steps: ChatGPT, Claude, Cursor, Pi.