How to check my UID? BTCMEX Support 25 November 2020 23:40 Updated Follow To check your User ID go to your "Identity information" in the drop-down menu on the top right corner of BTCMEX. 2. Click "Account information and security" to check your User ID. Related articles How to make a Deposit on BTCMEX? What's the Minimum Deposit on BTCMEX? What are the Trading Fees on BTCMEX? How to Register on BTCMEX? How to become an Affiliate? Comments 0 comments Article is closed for comments.