Netherlands test data, valid by format

Dutch person

Returns a synthetic Dutch person: given name(s), surname, initials, birth date, and a matching BSN. The Dutch BSN is non-semantic (it encodes neither sex nor birth date), so the birth date is drawn independently within any age/birth-date filters (contradictory combinations are rejected with a 400) and `sex` forces the gendered form of the name. Set `invalid=true` for a person whose BSN has a deliberately wrong elfproef check digit. `edge=true` biases the BSN and name shape toward their rare corners. Set `caseStrict=false` to deliberately mangle the name/surname casing.

Dutch BSN

Returns a valid Dutch BSN (Burgerservicenummer) with a correct elfproef check. The BSN is non-semantic — it encodes no birth date or sex. Set `invalid=true` for a BSN with a deliberately wrong check digit, or `edge=true` for valid edge-case numbers.

Dutch company

Returns a consistent synthetic Dutch company in one call: a full trading name with its legal form, plus the matching KvK, RSIN, and btw-id. Shape the name with `strategy` and `legalForm` (as on `/v1/nl/company-name`). Set `invalid=true` to corrupt the RSIN and btw-id check digits (the KvK number has no checksum and the name stays intact), for testing checksum validators.

Dutch btw-id

Returns a valid Dutch btw-id (VAT identification number), e.g. `NL123456789B01`. Use `standard` to pick `modern` (default, MOD 97-10 checked) or `legacy` (elfproef core, `B01` suffix). Set `invalid=true` for a btw-id that fails validation, or `edge=true` for valid edge-case numbers.

Dutch KvK number

Returns a valid Dutch KvK number (Kamer van Koophandel registration number) — an 8-digit number whose first digit is non-zero. The KvK number carries no checksum, so there is no `invalid` flag. Set `edge=true` for valid edge-case numbers (min, max, repeated-pattern).

Dutch RSIN

Returns a valid Dutch RSIN (Rechtspersonen en Samenwerkingsverbanden Informatienummer) with a correct elfproef check. The RSIN is non-semantic. Set `invalid=true` for an RSIN with a deliberately wrong check digit, or `edge=true` for valid edge-case numbers.

Dutch IBAN

Returns a valid Dutch IBAN with a correct checksum. Pin the issuing bank with `bankCode` (4-letter bank code) or `bankName` (mutually exclusive), or let it be chosen at random. Set `invalid=true` to get an IBAN with deliberately wrong check digits, for testing checksum validators.

Dutch email address

Returns a realistic synthetic Dutch email address: a name-based local part (romanised to ASCII) on a free webmail, a Dutch regional provider, or a corporate domain built from a Dutch company brand. `domain` pins an exact domain; `domainCategory` (`free`/`regional`/`corporate`/`any`) scopes a weighted-random draw. `pattern` selects the local-part shape or `any`. `plusTag` controls plus-addressing; `exotic=true` allows the rarer RFC-valid characters.

Dutch vehicle registration plate

Returns a realistic Dutch vehicle registration plate (*kenteken*). `type` selects the kind: `standard` (default, a current civilian sidecode-11 `LLL-NN-L`, e.g. PDA-01-D), `motorcycle` (`M`-series `NN-LLL-N`), `historic` (dark-blue pre-1978 `NN-NN-LL`), `diplomatic` (`CD-NN-NN`), `military` (KM/KZ/LM/DM + `LL-NN-NN`), `dealer` (green `HA-NN-NN`), or `export` (`Z-NN-NN`). For a `standard` plate, `sidecode` pins one of the still-issued civilian sidecodes (5, 6, 8, 9, 10, 11) and `era` chooses `current`, `legacy` (the digit-leading sidecodes 3/4), or `both`. The Netherlands encodes no region, issues no vanity plates, and no plate carries a checksum, so there is no invalid variant. Use `format` to choose hyphenated or compact rendering.

Dutch product or service offering

Returns a realistic synthetic Dutch offering — a product or service with a localized name, a plausible EUR price, its unit, and its industry label. Pin `industry` (NACE code), `type` (product/service), or filter by `industryName`/`offeringName` full text. Set `edge=true` for the price/format corners, `extreme=true` for a hostile-encoded name, or `invalid=true` for a broken record.