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Cheap Gas Nearby

nomadamas/k-skill
2.2k installs5.3k stars
Summary

This connects Claude to Korea's official Opinet fuel price API and Kakao Maps to find the cheapest gas stations near you. It always asks for your location first (neighborhood, station name, or coordinates), converts it through Kakao's anchor resolution, then queries Opinet's database sorted by price. You get the top three to five results with price, distance, address, and extras like self-service or car wash availability. The proxy setup means you don't need your own Opinet API key. It defaults to gasoline but switches to diesel if you ask. Honestly, this is hyper-local to Korea, but if you drive there and care about saving a few hundred won per liter, it's exactly what you need.

Install to Claude Code

npx -y skills add nomadamas/k-skill --skill cheap-gas-nearby --agent claude-code

Installs into .claude/skills of the current project.

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Files
SKILL.mdView on GitHub

Cheap Gas Nearby

What this skill does

유저가 알려준 현재 위치를 기준으로 근처에서 가장 싼 주유소를 찾아준다.

  • 위치는 자동으로 추정하지 않는다.
  • 반드시 먼저 현재 위치를 질문한다.
  • 가격 데이터는 한국석유공사 Opinet 공식 API를 우선 사용한다.
  • 동네/역명/랜드마크 입력은 Kakao Map anchor 검색으로 좌표를 잡은 뒤 Opinet nearby 검색으로 연결한다.
  • 기본 제품은 휘발유(B027) 이고, 유저가 경유라고 명시하면 경유(D047) 로 바꾼다.

When to use

  • "근처 가장 싼 주유소 찾아줘"
  • "서울역 근처 휘발유 제일 싼 데 어디야?"
  • "강남에서 경유 싼 주유소 몇 군데만 보여줘"
  • "지금 여기 근처 셀프주유소 중 싼 순으로 알려줘"

Mandatory first question

위치 정보 없이 바로 검색하지 말고 반드시 먼저 물어본다.

  • 권장 질문: 현재 위치를 알려주세요. 동네/역명/랜드마크/위도·경도 중 편한 형식으로 보내주시면 근처에서 가장 싼 주유소를 찾아볼게요.
  • 제품이 불명확하면: 휘발유 기준으로 볼까요, 경유 기준으로 볼까요? 따로 말씀 없으면 휘발유로 찾을게요.
  • 위치가 애매하면: 가까운 역명이나 동 이름으로 한 번만 더 알려주세요.

Default path

기본적으로 https://k-skill-proxy.nomadamas.org/v1/opinet/around 와 /v1/opinet/detail 을 경유해 조회한다. 사용자 쪽에서 별도 OPINET_API_KEY 를 준비할 필요가 없다.

Official Opinet surfaces

  • 오픈 API 안내: https://www.opinet.co.kr/user/custapi/openApiInfo.do
  • 반경 내 주유소: https://www.opinet.co.kr/api/aroundAll.do
  • 주유소 상세정보(ID): https://www.opinet.co.kr/api/detailById.do
  • 지역코드: https://www.opinet.co.kr/api/areaCode.do

반경 검색 핵심 파라미터:

  • x, y: 기준 위치 KATEC 좌표
  • radius: 반경(m, 최대 5000)
  • prodcd: B027(휘발유), D047(경유), B034(고급휘발유), C004(등유), K015(LPG)
  • sort=1: 가격순

Location resolution surface

  • Kakao Map 모바일 검색: https://m.map.kakao.com/actions/searchView?q=<query>
  • Kakao Map 장소 패널 JSON: https://place-api.map.kakao.com/places/panel3/<confirmId>

위치 문자열은 Kakao Map으로 anchor 좌표(WGS84) 를 구한 뒤, 내부적으로 WGS84 → KATEC 변환을 적용해 Opinet aroundAll.do 에 넘긴다.

Workflow

  1. 유저에게 반드시 현재 위치를 묻는다.
  2. 위치 문자열을 받으면 Kakao Map anchor 검색으로 좌표를 찾는다.
    • 위도/경도를 직접 받으면 anchor 검색을 생략한다.
  3. 좌표를 KATEC으로 변환한다.
  4. Opinet aroundAll.do 를 sort=1 가격순으로 조회한다.
  5. 상위 후보에 대해 detailById.do 를 호출해 도로명주소, 전화번호, 셀프 여부, 세차장, 경정비, 품질인증 여부를 보강한다.
  6. 보통 3~5개만 짧게 정리한다.

Responding

결과는 보통 아래 필드를 포함해 짧게 정리한다.

  • 주유소명
  • 가격(휘발유/경유 중 요청한 제품)
  • 거리
  • 주소
  • 셀프 여부
  • 세차장/경정비/품질인증 여부(있으면)

Node.js example

const { searchCheapGasStationsByLocationQuery } = require("cheap-gas-nearby");

async function main() {
  const result = await searchCheapGasStationsByLocationQuery("서울역", {
    productCode: "B027",
    radius: 1000,
    limit: 3
  });

  console.log(result.anchor);
  console.log(result.items);
}

main().catch((error) => {
  console.error(error);
  process.exitCode = 1;
});

Done when

  • 유저의 현재 위치를 먼저 확인했다.
  • 기본 proxy 경유로 Opinet 데이터를 조회했다.
  • 공식 Opinet nearby 결과를 최소 1개 이상 찾았거나, 못 찾은 이유와 다음 질문을 제시했다.
  • 가격순 상위 결과를 3~5개 이내로 정리했다.

Failure modes

  • 프록시 서버가 내려가 있거나 OPINET_API_KEY 가 서버에 설정되지 않은 경우.
  • Kakao Map anchor가 애매하면 좌표가 잘못 잡힐 수 있어 추가 위치 확인이 필요하다.
  • Opinet Open API 응답이 일시적으로 비거나 갱신 중일 수 있다.
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First SeenApr 16, 2026
View on GitHub

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