United States test data, valid by format

US person

Returns a consistent synthetic US person: name, surname, initials, birth date, sex, and a matching SSN. The `sex` and age filters work as they do for every other country — but note why they can. A Danish CPR or Polish PESEL *encodes* the birth date and sex, so those endpoints read the filters back out of the identifier. A US SSN encodes **neither**, so here the filters shape the drawn birth date and name directly, and nothing about the resulting SSN reflects them. `invalid=true` makes only the SSN fail validation; the name and birth date stay clean.

US Social Security Number

Returns a synthetic US Social Security Number in an issuable range: area `001`–`899` excluding `666`, group `01`–`99`, serial `0001`–`9999`. The SSN carries **no checksum** and encodes nothing — not sex, not birth date, and since the SSA moved to randomised assignment in 2011, not even a state of issue — so there are no age or `sex` filters here. `invalid=true` returns a number that violates the issuable-range mask (a reserved area/group/serial, an illegal character, or the wrong length).

US company

Returns a consistent synthetic US company in one call: a full trading name with its legal form, plus the matching EIN. Shape the name with `strategy` and `legalForm` (as on `/v1/us/company-name`). Note there is no national company registration number — US incorporation is a state matter, so the IRS-issued EIN is the only nationwide company identifier. Set `invalid=true` to make the EIN fail validation (it has no checksum, so its prefix or format mask is violated); the name stays intact.

US Employer Identification Number

Returns a synthetic US Employer Identification Number — the federal taxpayer number the IRS issues to businesses, formatted `NN-NNNNNNN`. The EIN carries **no checksum**: its only structural rule is that the two-digit prefix must be one the IRS actually issues, so `invalid=true` violates that prefix (or the nine-digit mask) instead. Since 2001 the prefix identifies the assigning campus or the online SS-4 programme, **not** the business’s location. Pin it with `prefix`; an unissued prefix is rejected with a 400.

US ABA routing transit number

Returns a US ABA routing transit number — the nine-digit code identifying the financial institution on a cheque, ACH transfer, or wire. Unlike the SSN and EIN it carries a **real checksum**: the ninth digit makes the `3-7-1` weighted sum of all nine digits congruent to zero mod 10. The first two digits identify the Federal Reserve district (`01`–`12`), thrift (`21`–`32`), electronic (`61`–`72`), or traveler’s cheques (`80`). Set `realBank=true` (or pin `bankName`) to draw a genuine published number from the bundled registry — routing numbers are public information. `invalid=true` breaks the checksum or uses an unallocated prefix.

US bank account

Returns a US routing/account pair. The two halves have very different standing, and this endpoint does not blur it: the **routing number** is a real standard with a real `3-7-1` mod-10 checksum, optionally drawn from a registry of genuine published institutional numbers; the **account number** has no national standard at all — length, checksum and structure are each bank’s own core-system choice, spanning roughly 4–17 digits with nothing to validate against. So the account number is a plausible digit string of a length that institution really issues, and nothing more. Because it has no checksum to break, `invalid=true` corrupts the routing number or the shape instead.

American email address

Returns a realistic synthetic American email address: a name-based local part (romanised to ASCII) on a free webmail, a American regional provider, or a corporate domain built from a American 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.

US vehicle registration plate

Returns a realistic US plate for any of the 51 jurisdictions (50 states plus DC), following that jurisdiction’s own current serial format. A US plate is structurally unlike a European one: the state is **not encoded in the characters** — it is printed as text — so `state` selects a mask rather than a prefix, and is reported back on the result. Wyoming is special-cased: its leading number is a real county code (1–23), not a free serial, and the county is reported. Beyond `passenger`, the `type` param covers vanity (2–7 free characters), commercial, motorcycle, trailer, temporary and government plates. No US plate carries a checksum, so `invalid=true` violates the issuing state’s serial mask.

American product or service offering

Returns a realistic synthetic American 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.