PASAR API

🇰🇷 Seoul TOPIS ~ real-time bus arrival info

← directory

Tracks ~9,000 Seoul buses at ~99% accuracy; keys are issued through the Seoul open-data platform.

View docs ↗ More Travel & mobility APIs

Get started

# Seoul TOPIS ~ real-time bus arrival info needs an API key ~ get yours at:
# https://topis.seoul.go.kr/refRoom/openRefRoom_4.do
curl 'http://ws.bus.go.kr/api/rest' \
  -H 'Authorization: Bearer YOUR_TOKEN'

AI prompt

I'm integrating a South Korea API into my app.

API: Seoul TOPIS ~ real-time bus arrival info
Provider: Seoul Metropolitan Government (TOPIS)
Auth: requires an API key (sign up: https://topis.seoul.go.kr/refRoom/openRefRoom_4.do)
Pricing: free
Base URL: http://ws.bus.go.kr/api/rest
Important note: Tracks ~9,000 Seoul buses at ~99% accuracy; keys are issued through the Seoul open-data platform.

Source: Seoul Metropolitan Government (TOPIS) (https://topis.seoul.go.kr/refRoom/openRefRoom_4.do)
Source type: Official public feed
Endpoint type: Direct public JSON endpoint
Integration difficulty: Needs API key
Last checked: 2026-07-05
Production caveat: Keep credentials server-side and confirm current limits, pricing, and webhook/error behaviour in the provider docs.

Help me set up the correct onboarding/authentication path and make the first valid request ~ explain exactly where credentials go and what must happen before production.

Related Travel & mobility APIs