# API list

This section introduces the APIs that are used in Merchant-presented Mode Payment.

| **Category** | **Interface name** | **Endpoint** | **Direction** |
| --- | --- | --- | --- |
| Payment | [pay (entry code)](../api_acq_tile/pay_entry_code) [pay (order code)](../api_acq_tile/pay_order_code) | /aps/api/v1/payments/pay | ACQP > Alipay+ |
| Payment | [inquiryPayment](../api_acq_tile/inquiry_payment) | /aps/api/v1/payments/inquiryPayment | ACQP > Alipay+ |
| Payment | [cancelPayment](../api_acq_tile/cancel_payment) | /aps/api/v1/payments/cancelPayment | ACQP > Alipay+ |
| Payment | [refund](../api_acq_tile/refund) | /aps/api/v1/payments/refund | ACQP > Alipay+ |
| Payment | [userInitiatedPay (private order code)](../api_acq_tile/pay_private_order_code) | N/A | Alipay+ > ACQP |
| Payment | [notifyPayment](../api_acq_tile/notify_payment) | N/A | Alipay+ > ACQP |
| Registration | [registration](../api_acq_tile/registration) | /aps/api/v1/merchants/registration | ACQP > Alipay+ |
| Registration | [inquiryRegistrationStatus](../api_acq_tile/inquiry_registration_status) | /aps/api/v1/merchants/inquiryRegistrationStatus | ACQP > Alipay+ |
| Registration | [notifyRegistrationStatus](../api_acq_tile/notify_registration_status) | N/A | Alipay+ > ACQP |
| Dispute | [responseRetrieval](../api_acq_tile/response_retrieval) | /aps/api/v1/disputes/responseRetrieval | ACQP > Alipay+ |
| Dispute | [responseEscalation](../api_acq_tile/response_escalation) | /aps/api/v1/disputes/responseEscalation | ACQP > Alipay+ |
| Dispute | [initiateRetrieval](../api_acq_tile/initiate_retrieval) | N/A | Alipay+ > ACQP |
| Dispute | [initiateEscalation](../api_acq_tile/initiate_escalation) | N/A | Alipay+ > ACQP |