diff --git a/tosspay-mock/src/main/kotlin/com/sangdol/tosspaymock/web/dto/TosspayRequest.kt b/tosspay-mock/src/main/kotlin/com/sangdol/tosspaymock/web/dto/TosspayRequest.kt
new file mode 100644
index 00000000..984795d4
--- /dev/null
+++ b/tosspay-mock/src/main/kotlin/com/sangdol/tosspaymock/web/dto/TosspayRequest.kt
@@ -0,0 +1,15 @@
+package com.sangdol.tosspaymock.web.dto
+
+import java.time.OffsetDateTime
+
+data class PaymentConfirmRequest(
+    val paymentKey: String,
+    val orderId: String,
+    val amount: Int,
+    val requestedAt: OffsetDateTime = OffsetDateTime.now()
+)
+
+data class PaymentCancelRequest(
+    val cancelAmount: Int?,
+    val cancelReason: String
+)
diff --git a/tosspay-mock/src/main/kotlin/com/sangdol/tosspaymock/web/dto/TosspayResponse.kt b/tosspay-mock/src/main/kotlin/com/sangdol/tosspaymock/web/dto/TosspayResponse.kt
new file mode 100644
index 00000000..4e8b9bd1
--- /dev/null
+++ b/tosspay-mock/src/main/kotlin/com/sangdol/tosspaymock/web/dto/TosspayResponse.kt
@@ -0,0 +1,91 @@
+package com.sangdol.tosspaymock.web.dto
+
+import com.sangdol.tosspaymock.business.domain.Payment
+import com.sangdol.tosspaymock.business.domain.PaymentType
+import com.sangdol.tosspaymock.business.domain.cancel.Cancellation
+import com.sangdol.tosspaymock.business.domain.card.Card
+import com.sangdol.tosspaymock.business.domain.easypay.Easypay
+import com.sangdol.tosspaymock.business.domain.transfer.BankTransfer
+import java.time.OffsetDateTime
+
+data class PaymentResponse(
+    val mid: String,
+    val lastTransactionKey: String,
+    val paymentKey: String,
+    val orderId: String,
+    val orderName: String,
+    val taxExemptionAmount: Int,
+    var status: String,
+    val requestedAt: OffsetDateTime,
+    val approvedAt: OffsetDateTime,
+    val useEscrow: Boolean,
+    val cultureExpense: Boolean,
+    val card: CardResponse?,
+    val virtualAccount: String?,
+    val transfer: BankTransferResponse?,
+    val mobilePhone: String?,
+    val giftCertificate: String?,
+    val cashReceipt: String?,
+    val cashReceipts: String?,
+    val discount: String?,
+    var cancels: CancelResponse?,
+    val secret: String?,
+    val type: PaymentType,
+    val easyPay: EasypayResponse?,
+    val country: String,
+    val failure: String?,
+    val isPartialCancelable: Boolean,
+    val receipt: String?,
+    val checkout: String?,
+    val currency: String,
+    val totalAmount: Int,
+    val balanceAmount: Int,
+    val suppliedAmount: Int,
+    val vat: Int,
+    val taxFreeAmount: Int,
+    val method: String,
+    val version: String,
+    val metadata: String?,
+)
+
+data class CardResponse(
+    val issuerCode: String,
+    val acquirerCode: String,
+    val number: String,
+    val installmentPlanMonths: Int,
+    val isInterestFree: Boolean,
+    val interestPayer: String?,
+    val approveNo: String,
+    val useCardPoint: Boolean,
+    val cardType: String,
+    val ownerType: String,
+    val acquireStatus: String,
+    val amount: Int,
+)
+
+data class EasypayResponse(
+    val provider: String,
+    val amount: Int,
+    val discountAmount: Int
+)
+
+data class BankTransferResponse(
+    val bankCode: String,
+    val settlementStatus: String,
+)
+
+data class CancelResponse(
+    val transactionKey: String,
+    val cancelReason: String,
+    val taxExemptionAmount: Int,
+    val canceledAt: OffsetDateTime,
+    val cardDiscountAmount: Int,
+    val transferDiscountAmount: Int,
+    val easyPayDiscountAmount: Int,
+    val receiptKey: String?,
+    val cancelStatus: String,
+    val cancelRequestId: String?,
+    val cancelAmount: Int,
+    val taxFreeAmount: Int,
+    val refundableAmount: Int,
+)