Validate

Validates whether a Singapore Unique Entity Number (UEN) has the correct format and checksum.

GET /uen/validate

Parameters

Parameter	Required	Description
uen	Yes	The UEN string to validate

Example

curl "https://api.uwuapps.org/uen/validate?uen=201012345K"

Response

{
  "success": true,
  "uen": "201012345K",
  "valid": true
}

UEN formats

There are three types of UEN in Singapore:

Type	Format	Length	Example
A	{8 Digits}{Checksum}	9 chars	12345678A
B	{4-digit year}{5 Digits}{Checksum}	10 chars	201012345K
C	{T or S or R}{2-digit year}{Entity type}{4 Digits}{Checksum}	10 chars	T12LL1234A

Type C entity codes

LP, LL, FC, PF, RF, MQ, MM, NB, CC, CS, MB, FM, GS, GA, GB, DP, CP, NR, CM, CD, MD, HS, VH, CH, MH, CL, XL, CX, RP, TU, TC, FB, FN, PA, PB, SS, MC, SM

Notes

• Input is case-insensitive.

• The checksum letter is calculated from the preceding digits.