Realizzato con l'API VAT

Utilizzo del credito API

Devi login O iscrizione per utilizzare l'API BuiltWith. Dopo aver effettuato l'accesso, la tua chiave API effettiva verrà mostrata qui.

Introduzione

The VAT API returns VAT, GSTIN, CNPJ, ABN and other available company registration numbers for websites.

This is particularly useful for products that accept business signups or payments and need company registration details to help determine how tax should be charged. For example, a billing or checkout workflow can look up the domain from a customer's business email or website, identify an available VAT or local registration number, and use it to pre-fill tax fields, reduce signup friction, flag accounts for tax review, or support business-to-business tax handling.

The data can also help enrich customer records, distinguish businesses from consumers, reconcile company details, and prioritize cases where registration information should be confirmed. Registration data should be verified with the appropriate official tax authority before it is relied upon for tax calculation, exemption, invoicing, or compliance decisions.

Each domain that returns one or more registration records uses one API credit. Domains with no registration results do not use a credit. You can look up between 1 and 16 comma-separated root domains in one request.

Autenticazione

È necessario fornire la chiave API in ogni ricerca. I nostri endpoint sono solo HTTPS e forniscono la crittografia delle chiavi. Non esporre mai la tua chiave API.

La tua chiave API è
00000000-0000-0000-0000-000000000000

Puoi fornire la tua chiave come parametro di stringa di query o come intestazione HTTP:

  • Stringa di query: ?KEY=00000000-0000-0000-0000-000000000000
  • Intestazione HTTP: Authorization: API 00000000-0000-0000-0000-000000000000
Esempi di lavoro

JSON Ottieni i numeri di registrazione aziendale per BuiltWith
https://api.builtwith.com/vat1/api.json?KEY=00000000-0000-0000-0000-000000000000&LOOKUP=builtwith.com

XML Ottieni i numeri di registrazione aziendale per BuiltWith
https://api.builtwith.com/vat1/api.xml?KEY=00000000-0000-0000-0000-000000000000&LOOKUP=builtwith.com

CSV Ottieni i numeri di registrazione aziendale per BuiltWith
https://api.builtwith.com/vat1/api.csv?KEY=00000000-0000-0000-0000-000000000000&LOOKUP=builtwith.com

JSON Ottieni i numeri di registrazione aziendale per più domini
https://api.builtwith.com/vat1/api.json?KEY=00000000-0000-0000-0000-000000000000&LOOKUP=example.com,builtwith.com

Risposta

Results are flat records containing Domain, Type and Number. A domain can return more than one record. Domains without known registration data return no records.

[
  { "Domain": "builtwith.com", "Type": "GSTIN", "Number": "2332323" }
]

CSV responses contain the same values:

Domain,Type,Number
builtwith.com,GSTIN,2332323

Tipi di registrazione aziendale

The public registration-types endpoint lists every value that may appear in the VAT API Type field, together with its friendly name and description. It does not require an API key or use API credits.

https://api.builtwith.com/vat1/types.json

XML and CSV are also available at /vat1/types.xml and /vat1/types.csv.

TipoNomeDescrizione
ABNABNAustralian Business Number issued by the ATO, an 11-digit identifier for entities carrying on business in Australia.
ACNACNAustralian Company Number issued by ASIC, a 9-digit identifier assigned to every registered Australian company.
AFMAFMGreek tax registration number (Arithmos Forologikou Mitroou), a 9-digit identifier assigned by the tax authority.
BCEBCEBelgian Crossroads Bank for Enterprises number, a 10-digit identifier for companies registered in Belgium.
BNBusiness No.Canadian Business Number issued by the CRA, a 9-digit identifier that may include a 4-digit program account suffix.
BRNBusiness Reg. No.South Korean Business Registration Number issued by the NTS, formatted as XXX-XX-XXXXX.
CEGJEGYZEKSZAMCompany Reg. No.Hungarian company registration number (Cégjegyzékszám) held in the company register, formatted as XX-XX-XXXXXX.
CIFCIFSpanish tax identification number (Código de Identificación Fiscal) for legal entities, beginning with a letter followed by 8 alphanumeric characters.
CINCINIndian Corporate Identity Number issued by the MCA, a 21-character alphanumeric code identifying every registered company.
CNPJCNPJBrazilian company registration number (Cadastro Nacional da Pessoa Jurídica) issued by the Receita Federal, consisting of 14 digits.
CRNCompany Reg. No.UK Companies House registration number, typically 5–8 digits with an optional prefix such as SC (Scotland) or NI (Northern Ireland).
CROCRO No.Irish Companies Registration Office number, a 5–6 digit identifier assigned to companies registered in Ireland.
CUICUIRomanian Unique Registration Code (Cod Unic de Înregistrare), a fiscal identifier prefixed with RO assigned to companies by the tax authority.
CVRCVRDanish Central Business Register number (CVR-nummer), an 8-digit identifier for all registered businesses in Denmark.
DICDICCzech or Slovak tax identification number (Daňové identifikační číslo), an 8–10 digit code optionally prefixed with a country code.
EINEINUS Employer Identification Number issued by the IRS, formatted as XX-XXXXXXX and used for federal tax purposes.
FBNFBNAustrian commercial register number (Firmenbuchnummer), consisting of 4–6 digits followed by a check letter.
GEMIGEMIGreek General Electronic Commercial Registry number (ΓΕΜΗ), an 8–12 digit identifier for companies registered in Greece.
GSTINGSTINIndian Goods and Services Tax Identification Number, a 15-character alphanumeric code linking a business to its GST obligations.
HRBHRBGerman commercial register number (Handelsregisternummer), consisting of a HR prefix, letter, and number recorded at the local court.
ICOICOCzech or Slovak company identification number (Identifikační číslo osoby), an 8-digit code assigned by the business register.
JP_CORPORATE_NUMBERJP Corporate No.Japanese corporate number (法人番号), a 13-digit identifier assigned by the National Tax Agency to every registered legal entity.
KRSKRSPolish National Court Register number (Krajowy Rejestr Sądowy), a 10-digit identifier for companies registered in Poland.
KVKKVKDutch Chamber of Commerce number (Kamer van Koophandel), an 8-digit identifier assigned to businesses registered in the Netherlands.
NIPNIPPolish tax identification number (Numer Identyfikacji Podatkowej), a 10-digit code used for tax and VAT purposes.
NIPCNIPCPortuguese company tax identification number (Número de Identificação de Pessoa Coletiva), a 9-digit code assigned by the tax authority.
ORGNROrg. No.Scandinavian organisation number used in Sweden (6+4 digits) and Norway (9 digits) to identify registered legal entities.
PIVAP. IVAItalian VAT number (Partita IVA), an 11-digit identifier assigned to businesses liable for VAT in Italy.
RCSRCSLuxembourg Trade and Companies Register number (Registre de Commerce et des Sociétés), beginning with a letter followed by up to 6 digits.
REGCOMReg. Com.Romanian Trade Register number in J-format (e.g. J40/1234/2000), identifying the county, sequence, and year of registration.
REGONREGONPolish statistical identification number (Rejestr Gospodarki Narodowej), either 9 or 14 digits, assigned by the Central Statistical Office.
RFCRFCMexican Federal Taxpayer Registry code (Registro Federal de Contribuyentes), a 12–13 character alphanumeric identifier for tax purposes.
SIRENSIRENFrench company identifier (Système d'Identification du Répertoire des ENtreprises), a 9-digit code assigned by INSEE.
SIRETSIRETFrench business location identifier (Système d'Identification du Répertoire des ETablissements), a 14-digit code extending the SIREN with an establishment suffix.
UIDUIDSwiss or Austrian company identification number; Swiss UIDs are prefixed CHE with 9 digits, Austrian UIDs are prefixed ATU with 8 digits.
USCCUSCCChinese Unified Social Credit Code (统一社会信用代码), an 18-character alphanumeric identifier assigned to all registered organisations.
USTIDUSt-IdNr.German VAT identification number (Umsatzsteuer-Identifikationsnummer), formatted as DE followed by 9 digits.
VATVATEuropean-style VAT registration number consisting of a 2-letter country prefix followed by up to 18 alphanumeric characters.
YTUNNUSY-tunnusFinnish Business ID (Y-tunnus), a 7-digit number followed by a hyphen and a check digit, assigned by the PRH.
Riferimento API
  • KEY (required): your BuiltWith API key.
  • LOOKUP (required): 1 to 16 comma-separated domains.
  • Formats: json, xml, and csv.
  • Credit cost: 1 API credit per domain that returns at least one registration record; no credit is used when a domain returns no results.
Domini speciali

Manteniamo due elenchi utili per la ricerca di domini: gli elenchi "Ignora" e gli elenchi "BuiltWith Suffix".

Elenco ignorati
TQuesto è il nostro elenco interno di domini che non indicizziamo. Sono bloccati, contengono troppe tecnologie fuorvianti o troppi sottodomini con contenuti generati dagli utenti.

BuiltWith Elenco dei suffissi
Questo si basa sul Elenco dei suffissi pubblici ma include molte voci aggiuntive per le aziende con sottodomini che dovrebbero essere considerati domini di primo livello. Questo elenco ci garantisce una migliore visibilità per i siti web interni, ad esempio porta northernbeaches.nsw.gov.au al primo posto rispetto a nsw.gov.au.

Ignora domini (XML, JSON or TXT)
https://api.builtwith.com/ignoresv1/api.json
Domini suffissi (XML, JSON or TXT)
https://api.builtwith.com/suffixv1/api.json
Codici di errore

Si noti che i messaggi di errore in questo formato non possono essere garantiti; l'implementazione dovrebbe considerare anche i codici di risposta diversi da 200 come errori. La proprietà Lookup sarà null (json) o non fornita (xml) se l'errore è correlato al server. Visualizza tutti i potenziali codici di errore ben formati.

Termini di utilizzo

Nostro termini standard coprono l'utilizzo di tutte le nostre API.

In generale, puoi utilizzare l'API per migliorare il tuo prodotto in molti modi. L'unica limitazione è che non puoi rivendere i dati così come sono o fornire funzionalità duplicate a builtwith.com e ai suoi servizi associati.