bitgo4 binance token3 bitcoin exchange3 crypto exchange3 crypto trading platform3 cryptocurrency3 erc20 and bep20 token3 limit order3 referral system3 spot trading3 swap coins3 tradexpro centralized exchange3 kyc verification2 market making bot2 trading view charting library2 accept payments1 bitcoin1 blockchain1 css1 indicators1 payments1 php1 receive bitcoins1 rest api1 tradexpro blog1 tradexpro news1