⚡ Quick summary (TL;DR)
OKX walkthrough to purchase USDT: account prep, deposits, trading, then ready to withdraw to your MPChat address.
Keep egress region, billing address, and card details aligned; leave a balance buffer; do not rapid-retry payments.
This guide is for MPChat Pay & MPCard (Cloud / Flash / Boundless).
📖 Overview
This article teaches you how to safely purchase USDT through C2C guaranteed transactions on OKX to prepare for subsequent recharge of MPChat and card opening. If you are new to cryptocurrencies, please read "Why is it recommended to buy USDT through an exchange?" 》.
before starting
Prepare a mobile phone and available Alipay/WeChat/bank cards.
We recommend you reserve slightly more than the amount required to open the card (card opening fee + first card recharge).
The entire process is operated on the Ouyi official App/official website, and beware of phishing websites.
Step 1: Download and install Ouyi App
Go to Ouyi official channel to download the App and install it.
Open the app and prepare to register.
Official download: https://www.okx.com or search OKX in each app store
Step 2: Register an OUYI account
Register using your email or mobile phone number.
Set the login password and complete the security verification.
Follow the prompts to complete basic real-name authentication (KYC).
Step 3: Purchase USDT through C2C
Enter "Buy Coins" → "C2C Transaction/P2P" in the App.
Select the currency USDT and select the payment method (Alipay/WeChat/Bank Card).
Choose sellers with high reputation, large transaction volume, and certification.
Enter the amount or quantity and click "Buy/Place Order" to generate an order.
Pay according to the order payment information, click "I have paid" and upload the voucher as needed.
Wait for the seller to release the coins, and check the USDT balance in the capital account after arrival.
⚠️ Please do not fill in sensitive words such as "USDT/Cryptocurrency" in the payment remarks.
⚠️ Be sure to complete the transaction within the Ouyi App and do not leave the platform to transfer funds privately.
Step 4: Withdraw coins to MPChat
For detailed steps, see: "How to deposit USDT to MPChat from Ouiyi".
When withdrawing coins, be sure to check the network and payment address, both must be consistent.
❓ FAQ
Which one should I choose between Oyi and Binance?
They are all mainstream compliant exchanges, just choose one that is convenient for you and can smoothly verify your name. The operating logic is basically the same.
How to choose a currency withdrawal network?
Give priority to networks with lower fees (such as TRC-20), and make sure they are consistent with the MPChat payment address network.
📚 Related articles
💬 Still having trouble?
Do not retry payments rapidly (risk systems may cool you down). Screenshot the error (mask card number & CVV), then tap the message icon in MPChat for 1:1 support.
Need an MPCard? Apply inside the MPChat App — a virtual card is usually ready in about a minute.