Browse APIs

OneMap Search (Geocoding)

Government

by Singapore Land Authority (SLA)

Authoritative Singapore address and place search: postal codes, building names and roads to coordinates in both WGS84 and SVY21. The standard way to geocode SG addresses.

How to authenticate

  1. 1Register a free account at onemap.gov.sg (email verification).
  2. 2POST your email and password to https://www.onemap.gov.sg/api/auth/post/getToken.
  3. 3Use the returned access_token as Authorization header; it expires after 3 days.
  4. 4Renew by calling getToken again (automate this in your client).

Example request

Request
curl -H 'Authorization: YOUR_TOKEN' 'https://www.onemap.gov.sg/api/common/elastic/search?searchVal=Raffles+Place&returnGeom=Y&getAddrDetails=Y&pageNum=1'

Example response

Response (truncated)
{"found":21,"results":[{"SEARCHVAL":"ASCOTT SINGAPORE RAFFLES PLACE","ADDRESS":"2 FINLAYSON GREEN ... SINGAPORE 049247","POSTAL":"049247","LATITUDE":"1.2820837651092","LONGITUDE":"103.851559731294"}]}

Notes for AI agents

Quirk verified 2026-07-05: without a token the search endpoint still returns results but includes an error field asking for a token; do not rely on that, docs state a token is required. Postal code as searchVal is the most reliable lookup.

Machine-readable version: /api/apis/onemap-search

Related APIs

GEOGovernment

OneMap Reverse Geocode

Singapore Land Authority (SLA)

Convert WGS84 or SVY21 coordinates into the nearest Singapore buildings, block numbers, road names and postal codes within a chosen buffer. Companion endpoints expose themes and planning-area population queries.

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GEOGovernment

OneMap Routing

Singapore Land Authority (SLA)

Turn-by-turn routing within Singapore for drive, walk, cycle and public transport modes, including bus and train legs with fares for the pt mode. Free alternative to commercial routing for SG-only apps.

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