A free, public, serverless REST API providing a wide range of utility services — from calculations and conversions to random content, Singapore-specific data, and more.
Base URL: https://api.uwuapps.org
All endpoints are HTTP GET requests. Parameters are passed as query strings.
curl "https://api.uwuapps.org/calc/age?date=2000-01-15"All responses are JSON:
{
"success": true,
"age": 25
}| Category | Endpoints |
|---|---|
| Calc | Age, BMI, days between dates, simple interest, aspect ratio |
| Convert | Temperature, weight, number base, morse code, currency, ciphers, encoding |
| Check | Password strength, color contrast (WCAG) |
| Generate | Passwords, QR codes, gradients |
| NRIC | Validate, generate, and reconstruct Singapore NRICs |
| UEN | Validate and generate Singapore UENs |
| Car Plate | Validate and generate Singapore car plates |
| Predict | Gender, age, and nationality from a name |
| Random | Jokes, Pokémon, images, quotes, dice, coin flips, words, and more |
| Search | Movies, recipes, cocktails, countries, word definitions, images |
| SG | Singapore bus arrivals, bus stops, and air quality (PSI) |
| Detect | Browser/OS detection, reverse geocoding |
| Scan | QR code scanning |
| Translate | Text translation and language detection |
| Weather | Current weather, 7-day forecast, precipitation nowcast |
| Wordle | Get and validate words for Wordle-style games |
| CAPTCHA | CAPTCHA generation and verification |
Full documentation is available in the docs/ folder.
- Runtime: Node.js
- Hosting: Vercel (serverless, Singapore region)
MIT