## Indonesian NIK Parser
Every Indonesian citizen carries a 16-digit NIK (Nomor Induk Kependudukan) on their KTP. The digits are not random: they encode the province, city/regency and district where the card was issued, the holder's birth date, their gender (female birth dates have 40 added to the day), and a unique sequence number.
This API decodes that structure so your application can validate a NIK before accepting it, pre-fill a registration form, or sanity-check data quality - without asking the user for anything but the number.
### Endpoints
- **Validate Indonesian NIK** - structural check: length, digits, known region code, plausible birth-date segment.
- **Parse Indonesian NIK** - full decode: province/city/district codes and names, birth date (ISO 8601), gender, unique code.
- **Ping** - free health check.
### What it is not
Parsing is offline and structural. A structurally valid NIK is not proof that the number is registered to a real person - only Dukcapil (the civil registry) can confirm that, and this API deliberately does not connect to it. Nothing you send is stored.
Built and operated by Aidnity, an Indonesian data API provider.