USDD functions as a decentralized, over-collateralized stablecoin engineered to maintain a 1:1 peg with the US dollar, prioritizing improved stability and transparency. Its goal is to provide security, decentralization, and steadiness within the cryptocurrency landscape. The token allows for smooth integration into DeFi platforms, serving as a dependable and clear asset for users.

The ecosystem supports long-term expansion through seamless DeFi compatibility, effective liquidation mechanisms, collateral auctions, and a Peg Stability Module (PSM) that helps secure market stability. It protects the protocol via real-time surveillance and community-driven governance, thereby empowering participants.

USDD debuted on the TRON blockchain on May 5, 2022. It now operates as a decentralized stablecoin, with a minting mechanism that is fully decentralized instead of being managed by one specific party.

USDD distinguishes itself as a decentralized, over-collateralized stablecoin that prioritizes stability, transparency, and sustainable yield. By functioning as a yield-bearing asset, it aims to offer an optimal combination of price stability and income generation.

Regarding the circulating supply, there are roughly 1.5 billion tokens in circulation as of April 2026. Because USDD is a decentralized stablecoin built to keep a 1:1 peg with the US dollar, its supply expands or contracts according to demand, meaning there is no fixed maximum cap.

The security of any stablecoin depends largely on the stability of its backing assets. To address this, the USDD protocol maintains over-collateralization using highly liquid assets such as TRX, sTRX, USDT, and WBTC. Additionally, the protocol’s monetary policy enables dynamic adjustments to reserve asset ratios, ensuring currency stability even when adverse market conditions cause the value of these reserves to fluctuate.