OneMap API Documentation

Introduction

OneMap is the authoritative national map of Singapore developed by the Singapore Land Authority (SLA).

We publish a variety of APIs in RESTful JSON format for government agencies, businesses, associations, third party developers, researchers, and members of public to use.

These APIs can help you build apps and services by providing authoritative, localised, and granular map and map related data.

To use the OneMap APIs and tools, please register here.

Map Services

Basemap

Use OneMap as the basemap layer in your applications. It is updated, localised and granular. The basemap comes in 4 different styles – Default, Original, Grey and Night.

Minimap

Build a customised interactive map of an area with a location marker and pop-up box with customisable text and logo image.

Advanced Minimap

Create an Advanced Minimap for more complex mapping needs. Add up to 15 location markers and include a route between the location markers that are plotted.

Static Map

Create a PNG format map to embed in websites or print materials. This tool enables the overlay of multiple points, polygons, or polylines on the map.

API Document

SEARCH

Search for address information for roads, buildings etc.

REVERSE GEOCODE

Get the corresponding address or road name for a location.

ROUTING

Enable public transport (PT), driving, walking and cycling routes across Singapore.

COORDINATE CONVERTERS

Convert your coordinates between 6 conversion function.

THEMES

Access over 100 thematic layers of locations for amenities, boundaries, facilities etc.

PLANNING AREA

Get the coordinates of the 55 planning areas in Singapore.

POPULATION QUERY

Singapore population demographics provided by the Department of Statistics.

Contact Us

The Singapore Land Authority welcomes your feedback to improve our services. If you have any feedback on the use of the OneMap APIs, please contact us at onemap@sla.gov.sg