diff --git a/docs/20260929_크리에이터_선물하기/client-api-summary.md b/docs/20260929_크리에이터_선물하기/client-api-summary.md
index 2e22f448..be779547 100644
--- a/docs/20260929_크리에이터_선물하기/client-api-summary.md
+++ b/docs/20260929_크리에이터_선물하기/client-api-summary.md
@@ -26,16 +26,16 @@ PRD에는 상세 API 계약, request/response 예시, 요구사항을 유지한
 | 사용자 | Method | URI | 역할 | Request | Response |
 |---|---:|---|---|---|---|
 | 팬 | POST | `/api/v2/gifts` | 크리에이터에게 선물을 신청하고 최종 결제 금액만큼 캔을 차감한다. | body: `recipientMemberId`, `senderName`, `senderPhoneNumber`, `senderZipCode`, `senderAddress`, `senderAddressDetail`, `sizeCode`, `categoryId`, `senderTermsAgreed`, `senderPrivacyAgreed`, `damageWaiverAgreed` | `applicationNo`, `status`, `statusName`, `priceCan`, `trackingDeadlineAt` |
-| 팬 | POST | `/api/v2/gifts/{applicationNo}/cancel` | 운송장 등록 전 선물 신청을 취소하고 전액 환불한다. | path: `applicationNo` | `applicationNo`, `status`, `refundedCan` |
-| 팬 | POST | `/api/v2/gifts/{applicationNo}/tracking` | 발송 후 택배사와 운송장 번호를 등록한다. | path: `applicationNo`, body: `courierCompanyName`, `trackingNumber` | `applicationNo`, `status`, `recipientAddressDeadlineAt` |
+| 팬 | POST | `/api/v2/gifts/{applicationNo}/cancel` | 운송장 등록 전 선물 신청을 취소하고 전액 환불한다. | path: `applicationNo` | `applicationNo`, `status`, `statusName`, `priceCan`, `canceledAt` |
+| 팬 | POST | `/api/v2/gifts/{applicationNo}/tracking` | 발송 후 택배사와 운송장 번호를 등록한다. | path: `applicationNo`, body: `courierCompanyName`, `trackingNumber` | `applicationNo`, `status`, `statusName`, `courierCompanyName`, `trackingNumber`, `trackingRegisteredAt`, `recipientAddressDeadlineAt` |
 | 팬 | POST | `/api/v2/gifts/{applicationNo}/review` | 전달 완료된 선물에 리뷰를 작성한다. | path: `applicationNo`, body: `rating`, `keywords`, `comment` | `reviewId`, `applicationNo`, `rating`, `keywords`, `comment`, `createdAt` |
 
 ## 크리에이터 API
 
 | 사용자 | Method | URI | 역할 | Request | Response |
 |---|---:|---|---|---|---|
-| 크리에이터 | POST | `/api/v2/gifts/{applicationNo}/recipient-address` | 운송장 등록 이후 배송지와 수령 약관 동의를 등록한다. | path: `applicationNo`, body: `recipientName`, `recipientPhoneNumber`, `recipientZipCode`, `recipientAddress`, `recipientAddressDetail`, `recipientTermsAgreed`, `recipientPrivacyAgreed` | `applicationNo`, `recipientAddressRegisteredAt` |
-| 크리에이터 | POST | `/api/v2/gifts/{applicationNo}/delivery-complete` | 검수 완료된 선물을 직접 수령 완료 처리한다. | path: `applicationNo` | `applicationNo`, `status`, `deliveredAt` |
+| 크리에이터 | POST | `/api/v2/gifts/{applicationNo}/recipient-address` | 운송장 등록 이후 배송지와 수령 약관 동의를 등록한다. | path: `applicationNo`, body: `recipientName`, `recipientPhoneNumber`, `recipientZipCode`, `recipientAddress`, `recipientAddressDetail`, `recipientTermsAgreed`, `recipientPrivacyAgreed` | `applicationNo`, `status`, `statusName`, `recipientAddressRegisteredAt` |
+| 크리에이터 | POST | `/api/v2/gifts/{applicationNo}/delivery-complete` | 검수 완료된 선물을 직접 수령 완료 처리한다. | path: `applicationNo` | `applicationNo`, `status`, `statusName`, `deliveredAt` |
 
 ## 관리자 API
 
@@ -58,6 +58,238 @@ PRD에는 상세 API 계약, request/response 예시, 요구사항을 유지한
 - `AdminGiftSizePriceResponse`: `sizeCode`, `name`, `basePriceCan`, `salePriceCan`, `isActive`
 - `AdminGiftOperationStatusResponse`: `applicationNo`, `status`, `statusName`, `occurredAt`
 
+## Kotlin DTO 형태
+
+아래는 JSON으로 변환되기 직전의 API request/response `data class` 형태다. `companion object` 변환 함수는 클라이언트 입력/출력 형태와 직접 관련이 없어 생략했다.
+
+### 사용자 Request DTO
+
+```kotlin
+data class GiftApplicationRequest(
+    val recipientMemberId: Long,
+    val senderName: String,
+    val senderPhoneNumber: String,
+    val senderZipCode: String,
+    val senderAddress: String,
+    val senderAddressDetail: String?,
+    val sizeCode: GiftSize,
+    val categoryId: Long,
+    val senderTermsAgreed: Boolean,
+    val senderPrivacyAgreed: Boolean,
+    val damageWaiverAgreed: Boolean
+)
+
+data class GiftTrackingRegistrationRequest(
+    val courierCompanyName: String,
+    val trackingNumber: String
+)
+
+data class GiftRecipientAddressRegistrationRequest(
+    val recipientName: String,
+    val recipientPhoneNumber: String,
+    val recipientZipCode: String,
+    val recipientAddress: String,
+    val recipientAddressDetail: String?,
+    val recipientTermsAgreed: Boolean,
+    val recipientPrivacyAgreed: Boolean
+)
+
+data class GiftReviewRequest(
+    val rating: Int,
+    val keywords: List<String>,
+    val comment: String?
+)
+```
+
+### 사용자 Response DTO
+
+```kotlin
+data class GiftFormOptionsResponse(
+    val sizes: List<GiftSizeOptionResponse>,
+    val categories: List<GiftCategoryOptionResponse>
+)
+
+data class GiftSizeOptionResponse(
+    val sizeCode: String,
+    val name: String,
+    val basePriceCan: Int,
+    val salePriceCan: Int
+)
+
+data class GiftCategoryOptionResponse(
+    val categoryId: Long,
+    val name: String,
+    val requiresDamageWaiver: Boolean
+)
+
+data class GiftListResponse(
+    val totalCount: Long,
+    val items: List<GiftListItemResponse>,
+    val page: Int,
+    val size: Int,
+    val hasNext: Boolean
+)
+
+data class GiftListItemResponse(
+    val applicationNo: String,
+    val direction: String,
+    val status: String,
+    val statusName: String,
+    val priceCan: Int,
+    val categoryName: String,
+    val sizeName: String,
+    val createdAt: LocalDateTime?
+)
+
+data class GiftDetailResponse(
+    val applicationNo: String,
+    val direction: String,
+    val status: String,
+    val statusName: String,
+    val giftInfo: GiftDetailInfoResponse,
+    val senderInfo: GiftAddressResponse?,
+    val recipientAddress: GiftAddressResponse?,
+    val mailbox: GiftMailboxResponse?,
+    val trackingRequired: Boolean,
+    val recipientAddressRequired: Boolean,
+    val recipientAddressDeadlineAt: LocalDateTime?,
+    val delivery: GiftDeliveryInfoResponse,
+    val statusTimeline: List<GiftStatusTimelineResponse>
+)
+
+data class GiftDetailInfoResponse(
+    val recipientCreatorNickname: String?,
+    val senderNickname: String?,
+    val sizeName: String,
+    val categoryName: String,
+    val applicationNo: String?,
+    val paidCan: Int?,
+    val tracking: String?,
+    val shippingRequestedAt: LocalDateTime?
+)
+
+data class GiftAddressResponse(
+    val name: String,
+    val phoneNumber: String,
+    val address: String
+)
+
+data class GiftMailboxResponse(
+    val name: String,
+    val address: String,
+    val phoneNumber: String
+)
+
+data class GiftDeliveryInfoResponse(
+    val canceledAt: LocalDateTime?,
+    val undeliverableAt: LocalDateTime?,
+    val undeliverableReason: String?
+)
+
+data class GiftStatusTimelineResponse(
+    val status: String,
+    val statusName: String,
+    val occurredAt: LocalDateTime?
+)
+
+data class GiftApplicationResponse(
+    val applicationNo: String,
+    val status: String,
+    val statusName: String,
+    val priceCan: Int,
+    val trackingDeadlineAt: LocalDateTime
+)
+
+data class GiftCancellationResponse(
+    val applicationNo: String,
+    val status: String,
+    val statusName: String,
+    val priceCan: Int,
+    val canceledAt: LocalDateTime
+)
+
+data class GiftTrackingRegistrationResponse(
+    val applicationNo: String,
+    val status: String,
+    val statusName: String,
+    val courierCompanyName: String,
+    val trackingNumber: String,
+    val trackingRegisteredAt: LocalDateTime,
+    val recipientAddressDeadlineAt: LocalDateTime
+)
+
+data class GiftRecipientAddressRegistrationResponse(
+    val applicationNo: String,
+    val status: String,
+    val statusName: String,
+    val recipientAddressRegisteredAt: LocalDateTime
+)
+
+data class GiftDeliveryConfirmationResponse(
+    val applicationNo: String,
+    val status: String,
+    val statusName: String,
+    val deliveredAt: LocalDateTime
+)
+
+data class GiftReviewResponse(
+    val reviewId: Long,
+    val applicationNo: String,
+    val rating: Int,
+    val keywords: List<String>,
+    val comment: String?,
+    val createdAt: LocalDateTime?
+)
+```
+
+### 관리자 Request DTO
+
+```kotlin
+data class AdminGiftCategoryRequest(
+    val categoryCode: String,
+    val name: String,
+    val requiresDamageWaiver: Boolean,
+    val isActive: Boolean
+)
+
+data class AdminGiftSizePriceRequest(
+    val basePriceCan: Int,
+    val salePriceCan: Int,
+    val isActive: Boolean
+)
+
+data class AdminGiftMarkUndeliverableRequest(
+    val reason: String
+)
+```
+
+### 관리자 Response DTO
+
+```kotlin
+data class AdminGiftCategoryResponse(
+    val categoryId: Long,
+    val categoryCode: String,
+    val name: String,
+    val requiresDamageWaiver: Boolean,
+    val isActive: Boolean
+)
+
+data class AdminGiftSizePriceResponse(
+    val sizeCode: String,
+    val name: String,
+    val basePriceCan: Int,
+    val salePriceCan: Int,
+    val isActive: Boolean
+)
+
+data class AdminGiftOperationStatusResponse(
+    val applicationNo: String,
+    val status: GiftStatus,
+    val statusName: String,
+    val occurredAt: LocalDateTime
+)
+```
+
 ## 클라이언트 구현 참고
 
 - 선물 푸시 딥링크는 `deepLinkValue=GIFT_DETAIL`, `deepLinkId=applicationNo`를 사용한다.