> For the complete documentation index, see [llms.txt](https://developers-apps-in-toss.toss.im/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developers-apps-in-toss.toss.im/documentation/api/auth.md).

# 인증

미니앱 파트너 서버 API의 인증 방식을 안내해요.

모든 API는 mTLS(상호 TLS) 클라이언트 인증서로 호출 주체(미니앱)를 식별해요.

mTLS 인증은 TLS 연결 수립 단계에서 이루어지므로 요청 헤더에는 나타나지 않아요. 각 API 문서의 코드 예시(cURL·Python·Node.js)처럼 발급받은 인증서와 개인 키 파일을 요청에 함께 설정해야 해요.

방화벽 IP 허용 목록, mTLS 인증서 발급·관리, 요청 한도 같은 운영 정보는 [서버 API 이용하기](/documentation/integration/server-api.md) 문서를 참고하세요.

사용자 단위 API는 엔드포인트에 따라 아래 값 중 하나를 함께 보내야 해요.

* `x-toss-user-key` 헤더 — 토스 로그인으로 발급받은 사용자 키 ([사용자 정보 받기](/documentation/common/authentication/toss-login.md#id-4) API로 획득해요)
* `x-anon-key` 헤더 — 비로그인 사용자 식별 키 (미니앱 SDK [User.getAnonymousKey](/documentation/common/authentication/hash-key.md) 함수로 발급받아요)
* `Authorization: Bearer {accessToken}` 헤더 — 토스 로그인 Access Token ([AccessToken 받기](https://developers-apps-in-toss.toss.im/documentation/api/pages/FCUMTd5EgKJiIdAljx5H#id-2.-accesstoken) API로 발급받아요, 일부 로그인 API)


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