Validate

Validates whether a Singapore NRIC/FIN number has the correct format and checksum.

GET /nric/validate

Parameters

Parameter	Required	Description
nric	Yes	The NRIC/FIN string to validate (e.g. S1234567D)

Example

curl "https://api.uwuapps.org/nric/validate?nric=S1234567D"

Response

{
  "success": true,
  "nric": "S1234567D",
  "valid": true
}

NRIC format

Singapore NRICs follow the format: {Prefix}{7 Digits}{Checksum}

Component	Description
Prefix	S — Singapore citizen born before 2000
	T — Singapore citizen born in 2000 or later
	F — Foreigner with PR issued before 2000
	G — Foreigner with PR issued in 2000 or later
7 Digits	Sequential identification number
Checksum	A single letter calculated from the digits using a weighted algorithm

Notes

• Validation checks both the format and the checksum letter.

• Input is case-insensitive.