👋Introduction
This article is intended for: technical architects, R&D engineers, and system operation and maintenance engineers who use the UPay payment system. Through this document, merchants can understand UPay access technology, accessed product businesses, processes, access specifications and other information, so that merchants can successfully complete the access work.

System Introduction
UPay is a professional USDT / PYUSD payment platform that provides merchants with simple and easy-to-use, safe and stable, no loss of orders/no collisions, and has powerful financial functions. Users pay directly to your own wallet address to ensure the safety of your funds and support API payment. It comes with a U risk control system that can prevent you from receiving black Us and marked Us. Personalized function customization and privatization deployment are available.
Payment Demo

Before getting started, you need to:
Register and log in to the Merchant Dashboard;
Locate the required appId and appSecret in the Merchant Dashboard;
Read our documentation on Security Notes and Signature Algorithm;
Then you can read the subsequent documentation and try to initiate a Submit Order request through the interface.
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