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Korean Transit Route

nomadamas/k-skill
519 installs5.3k stars
Summary

Handles door-to-door Korean transit routing using ODsay LIVE API with Kakao geocoding, so you can ask Claude for subway, bus, and walking directions between any two addresses in Korea. It geocodes your start and end points first (because ODsay only accepts coordinates), then returns up to three routes with total time, fare, transfer count, and step-by-step segments including the walking portions from your door to the first station and last station to destination. The setup requires an ODsay API key with IP whitelisting, but Kakao geocoding runs through a hosted proxy so you don't need your own key there. Good for anyone building Korean transit tools or bots, though watch the 1,000 daily call limit on the free tier.

Install to Claude Code

npx -y skills add nomadamas/k-skill --skill korean-transit-route --agent claude-code

Installs into .claude/skills of the current project.

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Files
SKILL.mdView on GitHub

korean-transit-route

한국 대중교통(지하철+버스+도보) 도어투도어 길찾기 스킬. ODsay LIVE API + Kakao Local geocoding.

When to use

  • "강남에서 잠실 지하철로 어떻게 가?"
  • "서울역 → 인천공항 대중교통 경로"
  • "환승 가장 적은 경로", "최소 시간 경로"

Credentials

  • 환경변수 ODSAY_API_KEY 가 있으면 사용. 없으면 ~/.config/k-skill/secrets.env 에서 로드.
  • ODsay Server 키는 호출 IP 화이트리스트 등록 필수. 발급은 https://lab.odsay.com
  • Kakao Local geocoding은 기본 hosted k-skill-proxy 경유로 호출하므로 사용자 쪽 KAKAO_REST_API_KEY 는 불필요하다. self-host proxy 운영자만 KAKAO_REST_API_KEY 를 서버에 설정한다.

Inputs

자연어 입력에서 출발/도착을 추출. 좌표가 없으면 반드시 geocoding 먼저 (ODsay는 좌표만 받음).

Geocoding (필수 선행 단계)

기본 hosted proxy를 사용한다. Proxy가 Kakao Local REST API 키를 서버에서만 주입하고, caller apiKey 는 무시한다.

  1. https://k-skill-proxy.nomadamas.org/v1/kakao-local/geocode?q=<주소/장소명>
  2. proxy 내부 fallback: Kakao Local address.json → 결과 없으면 keyword.json

응답 documents[0].x(경도), .y(위도) 사용.

import os, urllib.parse, urllib.request, json
PROXY=os.environ.get('KSKILL_PROXY_BASE_URL','https://k-skill-proxy.nomadamas.org').rstrip('/')
def geocode(q):
    url=PROXY+'/v1/kakao-local/geocode?q='+urllib.parse.quote(q)
    with urllib.request.urlopen(url,timeout=10) as resp:
        d=json.loads(resp.read())
    if d.get('documents'):
        doc=d['documents'][0]
        return float(doc['x']), float(doc['y']), doc.get('place_name') or doc.get('address_name')
    return None

지하철역명만 정확히 알 때는 ODsay searchStation 도 OK 하지만, 도어투도어 결과를 원하면 실제 출발지/도착지 좌표를 써야 첫/끝 도보 구간이 계산됨.

Core call

set -a; . ~/.config/k-skill/secrets.env; set +a
KEY=$(python3 -c "import os,urllib.parse;print(urllib.parse.quote(os.environ['ODSAY_API_KEY'],safe=''))")
curl -s "https://api.odsay.com/v1/api/searchPubTransPathT?apiKey=${KEY}&SX=${SX}&SY=${SY}&EX=${EX}&EY=${EY}&OPT=0&SearchPathType=${TYPE}"

Parameters:

  • SX,SY 출발 경도/위도, EX,EY 도착 경도/위도 (WGS84)
  • OPT: 0 추천순(기본), 4 최소시간, 5 최소환승
  • SearchPathType: 0 지하철+버스, 1 지하철만, 2 버스만

Response shape

result.path[] 배열, 각 path:

  • pathType: 1=지하철, 2=버스, 3=지하철+버스
  • info.totalTime(분), info.payment(원), info.subwayTransitCount, info.busTransitCount, info.totalWalk(m), info.firstStartStation, info.lastEndStation
  • subPath[]: 구간별. trafficType 1=지하철 2=버스 3=도보. 지하철이면 lane[0].name, startName, endName, passStopList.stations[](경유역)

Recommended output (door-to-door)

subPath 의 각 구간을 trafficType 별로 표시. 첫/끝 도보 구간은 출발지·도착지에서 역까지 실제 도보를 의미하므로 반드시 포함.

🚇 범안로95번길 32 → SKT타워
경로 1: 54분 · 1,950원 · 환승 2회 · 도보 688m
  🚶 도보 1분
  🚌 19번 부천범박힐스테이트 → 역곡역 (9분)
  🚶 도보 2분
  🚇 1호선 역곡 → 종각 (15정거장, 35분)
  🚶 도보 7분

3개 이내 경로 비교 권장. OPT=4(최소시간) / OPT=5(최소환승) 옵션을 사용자가 선호 표시하면 그쪽으로 호출.

Done when

  • 출발지와 도착지가 geocoding 되었거나, 좌표/역명이 명확히 확인되었다.
  • ODsay 응답에서 1개 이상 경로가 정리되었다.
  • 각 경로의 총 소요시간, 요금, 환승 횟수, 총 도보 거리가 포함되었다.
  • 첫/끝 도보 구간이 포함된 door-to-door 요약을 보여줬다.
  • upstream API 키가 응답에 노출되지 않았다.

Helpers

좌표 모르고 역명만 아는 경우 — searchStation 으로 변환:

curl -s "https://api.odsay.com/v1/api/searchStation?apiKey=${KEY}&stationName=강남&CID=1000"

CID=1000 = 수도권. 결과 result.station[].x,y 가 좌표.

Limits

  • 현재 ODsay 공식 Basic 상품 기준 무료 체험은 일 1,000건(6개월)이다. searchPubTransPathT + searchStation 호출이 합산되니 한 질문당 호출 최소화.
  • 응답에 error 키 있으면 즉시 사용자에게 표시(ApiKey/IP 문제 진단에 유용).
  • 한국 외 좌표는 지원 안 함.

Failure modes

  • ODsay error 응답: msg 필드를 그대로 사용자에게 표시하고, ApiKey 미등록 또는 IP 화이트리스트 누락 가능성을 안내한다.
  • Kakao geocoding 결과 없음: 주소/장소명을 다시 확인하거나 더 구체적인 표현을 요청한다.
  • 좌표는 있으나 ODsay 경로 없음: 대중교통 미개통 지역, 도보 가능 거리, 또는 해상/공항 구간일 수 있다. 사용자에게 확인한다.
  • quota 초과: 일일 한도 도달 시 추가 호출을 중단하고 사용자에게 알린다.

Don'ts

  • 카카오맵/네이버지도 directions API로 대중교통 라우팅 시도하지 말 것 (둘 다 운전·도보만 공개).
  • 키를 절대 응답에 노출하지 말 것.
Featured
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On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
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First SeenJun 3, 2026
View on GitHub

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