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xdata-kr Billing Standard Checkout API

The Billing Standard Checkout API from xdata-kr — 3 operation(s) for billing standard checkout.

xdata-kr Billing Standard Checkout API is one of 31 APIs that xdata-kr publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Billing Standard Checkout. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 3 operations across 3 paths, and defines 7 schemas. It is described by OpenAPI 3.2.0, at version 2.0.0.

3 operations 3 paths 7 schemas 3 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.0.0
Authentication
HTTP Basic, OAuth 2.0
Resource Areas
1

Authentication & Security 2

xdata-kr Billing Standard Checkout API declares 2 security schemes for authenticating requests. It accepts HTTP basic authentication (basicClientCredential). It supports OAuth 2.0 (mcpOAuth2) using the authorizationCode flow. By default, every request must be authenticated.

  • basicClientCredential — Console-issued client credential. Send Authorization: Basic base64(clientid:clientsecret).
  • mcpOAuth2 — For MCP clients. OAuth 2.0 authorization code flow with PKCE (S256) for public clients. The clientid is the HTTPS URL of an OAuth Client ID Metadata Document t…

Paths & Operations 3

Across 3 paths, the API surfaces 3 operations — 3 POST. Each is listed below with its method, path, parameters, and response codes.

Billing Standard Checkout 3
POST
/v1/subscriptions/payup-standard/prepare
Prepare Checkout
prepare_checkout_v1_subscriptions_payup_standard_prepare_post 3 params body → 200422
POST
/v1/subscriptions/payup-standard/approve
Approve Checkout
approve_checkout_v1_subscriptions_payup_standard_approve_post 4 params body → 202422
POST
/v1/subscriptions/payup-standard/status
Read Checkout Status
read_checkout_status_v1_subscriptions_payup_standard_status_post 3 params body → 200422

Schemas 7

The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are StandardCheckoutPrepareResponse (8 properties), StandardCheckoutApproveResponse (7 properties), StandardCheckoutPrepareRequest (6 properties), ValidationError (5 properties). Each schema is shown below with its type and property counts.

ValidationError
object
5 properties 3 required
StandardCheckoutPrepareRequest
object
결제창을 열기 전에 서버가 값을 확정한다 (금액을 클라이언트가 정하지 못하게). 갈래를 요청 DTO 여럿으로 나누지 않는 이유: 결제창을 여는 절차와 승인 절차가 갈래마다 완전히 같고, 다른 것은 금액을 어디서 계산하느냐 하나뿐이다. mode 를 주면 그 갈래다. 생략하면 subscr…
6 properties 3 required
StandardCheckoutApproveRequest
object
결제창 인증이 끝난 뒤 승인/조회에 쓰는 입력 (두 라우트 공용). transactionid 상한 20 은 결제대행사 규격값이다. 계약과 다른 길이는 전송 전에 거부한다.
2 properties 2 required
StandardCheckoutApproveResponse
object
승인 요청 결과 스냅샷. 신규 구독 갈래와 추가 상품 갈래가 같은 모양을 쓴다.
7 properties 7 required
StandardCheckoutPrepareResponse
object
결제창을 띄우는 데 필요한 값 + 서버가 서명한 체크아웃 토큰. checkouttoken 은 승인 단계에서 서버가 정한 금액·상품 을 되찾는 열쇠다. 금액을 응답에도 함께 싣는 이유는 고객에게 보여 주기 위해서이고, 승인 때 믿는 값은 토큰 안의 것뿐이다.
8 properties 8 required
StandardCheckoutStatusResponse
object
우리 DB 에 적힌 결제 상태 조회 (외부 통신 0건). 결제대행사에 거래조회 API 가 없어서 이 조회는 우리가 아는 것만 돌려준다. 모르는 거래는 빈 응답이다 — 남의 거래번호를 넣어 본 사람에게 "그런 거래가 있다" 는 사실조차 알려 주지 않는다. retryavailable 이…
3 properties
HTTPValidationError
object
1 property

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

xdata-kr-billing-standard-checkout-api-openapi.yml Raw ↑

Other APIs xdata-kr publishes across the network.

xdata-kr App Credential API
xdata-kr Auth API
xdata-kr Auth Handoff API
xdata-kr Billing Invoices API
xdata-kr Billing Payment Methods API
xdata-kr Billing Payments API
xdata-kr Billing Plans API
xdata-kr Billing Refunds API
xdata-kr Billing Subscriptions API
xdata-kr Billing Webhooks API
xdata-kr Composite Pack API
xdata-kr Console Self Service API
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