Upbit Adds API3 to Trading, Marking a Major Step for Decentralized Web 3.0 Infrastructure

South Korea’s cryptocurrency exchange Upbit announced the listing of altcoin API3 on August 19th, 2025, in KRW and USDT pairs. This move marks another significant development in the cryptocurrency market. Notably, API3 will exclusively support Ethereum network deposits and withdrawals. Users who incorrectly transfer funds may face extended refund timelines. The exchange’s trading hours for API3 begin at 5:00 PM on August 19th.