HCS Score
Red Line Violations
These are absolute prohibitions in Islamic finance. If any red line is triggered, the asset is automatically classified as HARAM.
Riba Exposure
Not an interest-based lending or borrowing protocol
Gambling / Betting
No gambling or betting mechanism
Haram Industry
Not involved in haram industry
Based on Red Line Screening and HCS Scoring.
Haram / Non Compliant
This cryptocurrency is evaluated as Haram for investment and use because the asset demonstrates material Sharia compliance concerns within the CoinStudy HCS framework.
Explanation
This asset shows significant concerns related to Sharia compliance, financial structure, or speculative design.
Reviewed by
CoinStudy Shariah Board
TRON is one of the most active blockchain networks in the world for stablecoin transfers — we analyzed it separately and classified TRX as Halal at 82 out of 100 for its payment infrastructure utility.
JUST is a DeFi protocol built on top of that TRON infrastructure. And here's the critical distinction that Muslim investors need to understand clearly — a halal blockchain can host haram applications. TRON being halal doesn't make every protocol running on TRON halal. Each application is assessed on its own financial structure and economic activity.
JUST's financial structure is clear and its compliance assessment is direct.
We ran JST through the full CoinStudy Halal Crypto Standard (HCS) methodology. Here's the complete picture.
JST fails the CoinStudy HCS Sharia red-line screening. Three red lines are triggered — Riba Exposure, Guaranteed Interest, and Synthetic Interest Products — resulting in an automatic Haram classification with no further scoring.
JUST's DeFi lending and collateralized debt structure is the same category of financial activity that made Aave, Sky Protocol, WLFI, and Morpho haram — now deployed on the TRON blockchain.
JUST is a decentralized finance platform operating within the TRON ecosystem, focused on lending, stablecoin issuance, collateralized borrowing, and yield-generating financial services.
The protocol allows users to lock digital assets as collateral, generate USDJ stablecoins against those assets through debt positions, access liquidity, earn yield through ecosystem incentives, and participate in various DeFi financial products.
The JST token is primarily used for governance participation and protocol decision-making within the JUST ecosystem.
Understanding what JUST does at the protocol level requires recognizing that its core economic activities — lending, collateralized borrowing, debt-based stablecoin issuance — are financial activities, not infrastructure services. The protocol exists to facilitate these financial arrangements, not to provide neutral technology infrastructure.
JUST operates through a collateralized debt mechanism similar in structure to what we analyzed with Sky Protocol (formerly MakerDAO) — and received the same haram classification for.
Users deposit crypto assets as collateral into JUST's smart contracts. Against that collateral, they generate USDJ — a stablecoin debt position. The collateral must exceed the borrowed amount by a required ratio. Stability fees — ongoing percentage charges on the debt position — function as interest costs that must be paid to maintain the position and eventually reclaim the collateral.
Additionally, JUST operates lending markets where users can supply assets and earn ongoing percentage returns from borrowers — the same capital-deposit-for-yield model that makes Aave and Morpho haram.
The yield-generating features and liquidity incentives distributed through the ecosystem further compound the Riba concerns by creating additional mechanisms for earning returns from deposited capital through financial arrangements.
This distinction is important enough to state directly and clearly.
We classified TRON (TRX) as Halal at 82 out of 100 for its payment infrastructure. TRON processes stablecoin transfers, enables peer-to-peer transactions, and operates as blockchain infrastructure.
JUST runs on TRON — but JUST is not TRON. JUST is a DeFi lending and collateralized debt protocol that uses TRON's infrastructure to deploy its financial applications.
The same logic applies across our analysis series:
TRON is halal. USDD (running on TRON) is haram.
Ethereum is halal. Aave (running on Ethereum) is haram.
Ethereum is halal. Sky Protocol (running on Ethereum) is haram.
Infrastructure and applications built on that infrastructure are always evaluated separately. A halal blockchain can host haram financial protocols. The question for each assessment is what that specific protocol does — not what blockchain it runs on.
JUST's core economic activity is precisely what Islamic finance identifies as Riba.
The collateralized debt mechanism requires users to pay ongoing stability fees — percentage charges on borrowed amounts — to maintain their debt positions. These fees function as interest charges on borrowed capital.
The lending market component generates ongoing percentage returns for capital suppliers from borrowers paying financing costs — the same capital-for-interest-yield structure that makes Aave and Morpho haram.
Whether implemented on TRON, Ethereum, or any other blockchain — these financial relationships create direct Riba exposure. The smart contract delivery mechanism doesn't change the economic nature of what's happening.
Under the CoinStudy methodology, these structures trigger the Riba Exposure red line clearly and decisively.
JUST's ecosystem includes complex DeFi financial structures, collateral management systems, debt-based mechanisms, and liquidity incentive models. These arrangements introduce additional uncertainty and complexity compared to straightforward productive economic activity.
The interplay between USDJ stability fees, collateral liquidation mechanisms, yield distribution systems, and liquidity incentives creates layers of financial complexity that compound the primary Riba concerns.
The broader JUST ecosystem contains yield farming activity, speculative DeFi participation, liquidity mining incentives, and highly volatile financial products that encourage short-term speculative behavior. This is a secondary concern — the Riba failures are decisive on their own — but it honestly reflects the broader ecosystem context.
JST fails three red lines. Under the CoinStudy HCS framework a single failure results in automatic Haram classification. Three failures makes this result definitive.
Riba Exposure — ❌ Failed. The protocol's core activities — collateralized debt with stability fees and lending markets with yield returns — create direct Riba exposure. The lending and borrowing infrastructure is the primary function of the protocol.
Guaranteed Interest — ❌ Failed. Stability fees on debt positions and yield returns to liquidity suppliers function as ongoing guaranteed interest income on deposited or borrowed capital.
Synthetic Interest Products — ❌ Failed. USDJ debt positions and liquidity pool holdings function as synthetic interest-bearing financial instruments in their economic structure.
Gambling and Betting — ✅ Passed.
Haram Industry — ✅ Passed.
Three red lines failed. Layer 2 scoring is skipped entirely.
Overall Result: Haram — Red Line Violations
Muslim investors who read our Sky Protocol (formerly MakerDAO) analysis will immediately recognize the structural similarity.
Sky Protocol creates USDS through collateralized debt positions with stability fees and offers the Sky Savings Rate. Sky Protocol is haram.
JUST creates USDJ through collateralized debt positions with stability fees and offers lending markets with yield returns. JUST is haram.
The specific stablecoin names differ. The blockchain differs — Sky Protocol on Ethereum, JUST on TRON. The compliance outcome is identical because the financial structure is fundamentally the same.
Collateralized debt with interest-like stability fees is the same financial relationship regardless of which blockchain it's deployed on or what the stablecoin is called.
JST functions primarily as a governance token — giving holders voting rights over protocol parameters, stability fees, and ecosystem decisions.
Under the CoinStudy methodology this doesn't resolve the compliance concern. JST's value is tied to the growth of JUST's lending and borrowing ecosystem. When more collateral flows into JUST debt positions, when more lending volume increases, when stability fees generate more protocol revenue — JST becomes more valuable.
Holding JST means your investment grows when the protocol's interest-based financial activities expand. Governance rights over a Riba-based DeFi protocol don't become halal because the governance mechanism is technically distinct from the debt and lending infrastructure.
Before investing in any DeFi protocol operating on any blockchain, ask yourself:
Does this protocol create debt positions where users pay ongoing percentage fees to maintain their collateral access — regardless of which blockchain it runs on? Does it offer lending markets where capital providers earn ongoing percentage returns from borrowers paying financing costs? Does the governance token's value grow when the protocol's debt positions and lending activity increase? Would the financial relationships in this protocol be recognized as Riba by a qualified Islamic scholar — regardless of the smart contract implementation? Is the compliance of the underlying blockchain (TRON) affecting my judgment about the compliance of the application (JUST) running on it?
For JUST — honest answers to these questions lead consistently to the same conclusion.
JUST (JST) is classified as Haram / Non-Compliant under the CoinStudy Halal Crypto Standard.
Three Sharia red lines are triggered — Riba Exposure, Guaranteed Interest, and Synthetic Interest Products — resulting in automatic Haram classification. The ecosystem is fundamentally centered around lending markets, collateralized borrowing systems, debt-based stablecoin creation through stability fees, liquidity incentives, and yield-generating financial products that create direct Riba exposure.
TRON's halal rating applies to TRON as payment infrastructure. It does not extend to JUST as a DeFi lending and debt protocol running on that infrastructure. Applications and the blockchains they run on are always evaluated separately.
For Muslim investors — JUST represents another clear example of why the category of DeFi lending protocols and collateralized debt systems consistently receives haram classification. The financial activity is the same regardless of which blockchain it's deployed on or how the governance token is structured.
Disclaimer: This analysis is provided for educational and research purposes only. This analysis is based on guidance from CoinStudy's HCS Shariah Board members. CoinStudy does not issue personal fatwas or financial advice. Please consult a qualified Islamic scholar for individual guidance.
Guaranteed Interest
No guaranteed interest obligations
Synthetic Interest Products
No synthetic interest instruments
3 Red Lines Failed
This asset is automatically classified as HARAM.
