Top 25 IOU Cryptocurrencies for July 2026

IOU cryptocurrencies, also known as tokenized IOUs, are digital assets that represent a promise to deliver a specific amount of an underlying asset at a later date. These tokens are typically issued on blockchain platforms and can be traded or exchanged like other cryptocurrencies. One real-world example is Tether (USDT), which is pegged to the value of the US dollar and used for stablecoin purposes. Another example is Bitfinex's LEO token, which represents a debt obligation from Bitfinex and provides various benefits to its holders within the Bitfinex ecosystem.