LTA DataMall Bus Arrival

Go to Request for API Access on LTA DataMall and fill in the form. DataMall says dynamic datasets are served through APIs with an Account Key issued to registered subscribers, and it offers instant access. Use is under the Singapore Open Data Licence and DataMall's API Terms of Service. We found no fee on the official site.

curl -H 'AccountKey: YOUR_ACCOUNT_KEY' -H 'accept: application/json' \
  'https://datamall2.mytransport.sg/ltaodataservice/v3/BusArrival?BusStopCode=83139'

• BusStopCode: required, 5 digits.
• ServiceNo: optional, returns one service only.

Response shape, per the API User Guide:

{"odata.metadata":"...","BusStopCode":"83139",
 "Services":[{"ServiceNo":"15","Operator":"SBST",
   "NextBus":{"OriginCode":"77009","DestinationCode":"77131",
     "EstimatedArrival":"2026-...T14:46:27+08:00","Latitude":"...","Longitude":"...",
     "VisitNumber":"1","Load":"SEA","Feature":"WAB","Type":"SD"},
   "NextBus2":{...},"NextBus3":{...}}]}

Load is SEA, SDA or LSD (seats, standing, limited standing). Type is SD, DD or BD (single, double, bendy). Feature WAB means wheelchair accessible. NextBus2 and NextBus3 can be empty late at night.

We called v3 BusArrival without an AccountKey on 2026-09-25. It returned HTTP 404 with the text The requested API was not found, not a 401. So a 404 usually means a missing or wrong AccountKey header. Check:

• The header name is exactly AccountKey, sent as a header, not a query string.
• The path is /ltaodataservice/v3/BusArrival. Older paths such as BusArrivalv2 come from earlier guides.
• An empty Services array means no buses are in service at that stop right now.