[//]:content-type-MARKDOWN-DONOT-DELETE Gate Pay has designed a dedicated white-label Checkout Payment. At the same time, we provide an On-chain Payment Address API to empower the underlying payment logic, allowing merchants to design their own checkout pages. **1. Please register a Gate account on the Gate APP/Gate official website and complete KYB.** *This Gate account will be used to handle all the operations and cash flow.* **2. Use the Gate UID obtained from Step 1 to apply for the Gate Pay Merchant Dashboard at https://www.gate.com/merchant#/get-started. Fill in the required company information and submit it.** deng

**3. In the merchant system, click on [Developer] to generate the API Secret Key.** > *Payment Secret Key Note: The key is generated only once, please make sure to save it. ![2](https://gimg2.gateimg.com/image/1202507022138395561594524.jpg) ![3](https://gimg2.gateimg.com/image/5202507022139173466846951.png)

**4. Generate the client_id.** Please send the following information to your assigned account manager. Gate Pay will generate the client_id for the merchant: > userId= the UID you used to apply for the merchant backend account > > appName=Company/Application Name > > appLogo=logo in image (png, jpg) or link form > > appDesc=Product description within 40 characters > > payCallBackUrl=The backend address used to receive payment results, must be in "https" format. > > homepageUrl= Your website **5. White-label solution integration** 5.1 White-label Checkout Payment integration (The payment address is dynamic and changes according to each order ID.) 5.1.1 Log in to the merchant dashboard, click [White-label Cashier Setup], and apply for the white-label solution. You need to upload your [Brand Identity] and [Domain Suffix] to display the merchant’s brand. Finally, click [Submit] and wait for approval.

5.1.2 After approval, please follow the API documentation to conduct payment integration testing: https://www.gate.com/docs/gatepay/common/en/ *Please first refer to the Common documentation and select the online service address (production environment) as the API testing interface.*

*Please integrate the white-label payment solution according to the [Checkout Payment] method.* https://www.gate.com/docs/gatepay/checkout_payment/en/

![1](https://gimg2.gateimg.com/image/12202507022149037219133785.png) 5.2 White-label on-chain address integration (The frontend of the checkout page needs to be designed by the merchant). For the on-chain address API, we provide both dynamic and static payment addresses. Merchants can choose based on their actual needs. 5.2.1 Please follow the API documentation to perform payment integration testing:https://www.gate.com/docs/gatepay/common/en/ Please first refer to the Common documentation and select the online service address (production environment) as the API testing interface.

5.2.2 Merchants can integrate the dynamic address payment solution according to the [Address Payment] method.The payment address will change according to each order ID . The address bound to an order will be reclaimed after 7 days and reassigned to a new order. Users must transfer funds to the payment address within the order validity period to complete the payment. Transfers made after the address reclaim period may result in loss of funds. ( **SDK integration is provided.** )

5.2.3 Merchants can integrate the static address payment solution according to the [Static Payment] method. The static address (for high-volume, stable clients) is valid long-term, with the validity period set by the merchant. Users can continuously transfer funds to this address within the address validity period to complete orders. https://www.gate.com/docs/gatepay/static_address_payment/en/

Gate Pay white label integration instructions

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