Geocoding — entry 056 of 80
One Map, Singapore
OneMap is the Singapore Land Authority's official geospatial platform, providing REST endpoints for address search, geocoding, routing, and thematic map layers built on authoritative national survey data. A free account gets a registered Bearer API token for full access, though basic address search still returns results without one; the API is government-run and free to use.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreeNo paid tier — free for the documented use case.
FormatsJSONResponses can be requested as JSON.
GreatAPIs Score
Score78
Authentication15/25API key required
Pricing20/20Free to use
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months
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<a href="https://greatapis.com/api/one-map-singapore/"><img src="https://greatapis.com/badge/one-map-singapore.svg" alt="Scored 78 on greatapis.com"></a>Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.