SGAsia · Southeast Asia

Singapore Address Validation API

Validate and standardise Singapore addresses in real time. Get a matched address, geocoordinates, confidence score, and Postal Code data via a single API call.

NNNNNN
Postal Code
OpenStreetMap
Data Source
English / Mandarin
Languages
HIGH
Max Confidence

Singapore Address Validation Demo

Confidence:HIGH
POST /enrich — ResponseSample
{
  "_note": "Sample response — enter any address and click Validate for live data",
  "valid": true,
  "canonical_address": "1 Parliament Place, Singapore 178880",
  "confidence": "HIGH",
  "delivery_risk": "low",
  "matched_address": {
    "line1": "1 Parliament Place",
    "city": "1 Parliament",
    "postal_code": "Singapore 178880",
    "country": "Singapore",
    "iso2": "SG"
  },
  "geocode": {
    "lat": 1.3521,
    "lng": 103.8198
  },
  "data_source": "OpenStreetMap",
  "issues": []
}

Singapore Address Format

Singapore addresses include block/building number, street name, unit number (#floor-unit), building name (if applicable), and 6-digit postal code. HDB (public housing) and private addresses share the same structure. All addresses are in English.

Postal Code Name
Postal Code
Format
NNNNNN
Official Languages
English, Mandarin, Malay, Tamil
Sample address:
1 Parliament Place, Singapore 178880
Major cities:
SingaporeJurong EastTampinesWoodlandsAng Mo Kio

Integration Code

curl -X POST https://agent.apitier.com/v1/enrich \
  -H "Content-Type: application/json" \
  -H "x-api-key: YOUR_API_KEY" \
  -d '{"address": "1 Parliament Place, Singapore 178880"}'

Frequently Asked Questions

What address format does Singapore use?
Singapore addresses include block/building number, street name, unit number (#floor-unit), building name (if applicable), and 6-digit postal code. HDB (public housing) and private addresses share the same structure. All addresses are in English.
What is a Postal Code in Singapore?
Singapore uses a Postal Code with the format NNNNNN to identify delivery areas. The APITier Address Agent API validates and standardises addresses including the Postal Code as part of the response.
How do I validate a Singapore address via API?
Send a POST request to https://agent.apitier.com/v1/enrich with your address string in the request body and your API key in the x-api-key header. The response includes the standardised Singapore address, geocoordinates (lat/lng), a confidence score (HIGH/MEDIUM/LOW), and data source information.

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