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JUST Protocol

The JUST Protocol suite represents the core financial layer of the TRON ecosystem, encompassing decentralized lending, overcollateralized stablecoins, and liquid staking derivatives. Governed by JST token holders, this interconnected protocol set provides the high-liquidity infrastructure required for institutional and retail DeFi activity on TRON.

Domain: just.network


The leading decentralized lending and borrowing protocol on TRON. As the flagship application of the JUST Network, it allows users to supply assets to earn variable yield; borrowers draw against collateral at algorithmic interest rates. With over $3.3B in total value locked as of mid-2025, it is one of the largest lending protocols outside Ethereum.

Detailed technical documentation, including mechanics for Energy Rental and algorithmic interest rates, is maintained in the dedicated JustLend DAO guide.

Domain: justlend.org


A former TRC-20 decentralized stablecoin backed by TRX collateral. As of late 2025, the JUST Foundation completed a phased shutdown of the USDJ stablecoin system. The decision was part of a strategic pivot to consolidate TRON’s stablecoin efforts around USDD and to maintain its massive dominance with USDT.

The shutdown followed a “Sunset Plan” that aimed to migrate users and liquidity to more modern protocols. Key milestones included:

  • May 16, 2025: Suspension of new USDJ supply and borrowing on JustLend DAO.
  • August 31, 2025: Official cessation of USDJ operations.
  • September 30, 2025: Final liquidation deadline for any remaining positions.

A decentralized stablecoin on TRON, managed by the TRON DAO Reserve. USDD is overcollateralized by a mix of TRX, BTC, and USDT held in reserve — overcollateralization provides a buffer against depeg under normal market conditions. It is the more liquid and widely integrated of the two JUST stablecoins.


JUST offers liquid staking for TRX via the sTRX token. Users deposit TRX and receive sTRX, which accrues staking rewards over time as the sTRX/TRX exchange rate appreciates. Current yield is approximately 8.67% APY (variable based on network staking ratios).

Unlike direct TRX staking — which locks the underlying for the 14-day minimum period — sTRX is a TRC-20 token and can be transferred, sold, or used in DeFi protocols while staking rewards continue to accumulate.


JustCrypto is a cross-chain asset bridge for the JUST ecosystem. It features a multi-chain price anchoring mechanism that allows external assets to be represented and utilized within JUST ecosystem applications.

The cross-chain mechanism is powered by premium platforms such as Poloniex and the BitTorrent Chain (BTTC). Supported tokens include: BTC, ETH, ETHB (Ethereum BTTC-Bridged), AINFT, LTC, and DOGE.


ParameterValue
Token standardTRC-20
ContractTCFLL5dx5ZJdKnWuesXxi1VPwjLVmWZZy9
FunctionGovernance votes; stability fee payments on USDJ CDPs
Governance scopeInterest rates, collateral ratios, new asset listings, fee distribution

JST holders submit and vote on proposals governing all JUST products. Voting power is proportional to JST held. Approved proposals take effect at the next available TRON maintenance period (the 6-second event at the end of each 6-hour Epoch).


CDP liquidation risk

USDJ CDPs are liquidated automatically if TRX collateral value drops below the liquidation threshold. Cascading liquidations during market downturns can amplify volatility and cause temporary depeg.

Stablecoin depeg risk

Both USDJ and USDD carry depeg risk under extreme market conditions. USDD’s overcollateralization provides a buffer but does not eliminate this risk entirely. Monitor collateral ratios at just.network.

Smart contract risk

JUST contracts are audited and have operated since 2020, but DeFi protocols carry inherent smart contract risk. Large deposits should be sized accordingly.