Islamic Finance Principles Assessment
Riba — Does Zest Protocol involve interest?
Zest Protocol's entire business model is built around lending BTC/sBTC/STX for interest and borrowing stablecoins against BTC collateral at variable, utilization-based rates. This is not a peripheral feature or a third-party integration bolted onto a neutral base layer — it is the protocol's sole disclosed source of revenue. For Muslim investors, this places Zest squarely in interest-based finance territory regardless of its technical sophistication or team credibility.
Assessment: Riba Dominant
Score: 25.5/100
Our methodology examines 10 criteria to evaluate how well Zest Protocol avoids interest-based mechanisms.
Zest's only disclosed revenue stream is a "reserve factor" — a cut of borrower interest — retained across its lending pools and routed to a DAO treasury. Borrower rates float dynamically with pool utilization rather than being fixed by contract, which is a partial mitigant compared to fixed-rate riba, but the underlying transaction remains a debt-for-interest arrangement: depositors earn yield from borrowers' interest payments. There is no disclosed profit-and-loss-sharing, equity, or asset-backed trade structure underlying these flows — it is conventional collateralized lending re-implemented on-chain.
Native ZEST staking is explicitly not yet active per official documentation, which states governance and staking "activate once the protocol has the scale to make them meaningful." A third-party exchange claims a lock-and-boost yield mechanism exists, but this is uncorroborated by protocol sources and lacks any disclosed lock-up terms, reward source, or custody model. Insofar as any future ZEST rewards are sourced from the reserve-factor share of borrower interest, they would inherit the same riba-based character as the base lending activity, rather than representing a genuinely variable, risk-shared return.
Gharar — How much uncertainty does Zest Protocol involve?
Zest carries moderate uncertainty: strong transparency on team and code is offset by ambiguity around staking mechanics and a documented security failure. On balance, disclosure quality is above average for the sector, but unresolved contradictions in third-party materials and an unactivated governance layer keep genuine uncertainty in play. Muslim investors should treat these gaps as material, not cosmetic.
Assessment: Moderate Gharar (Material Uncertainty)
Score: 54.5/100
Our methodology examines 15 criteria including team transparency, audit quality, and governance.
Zest is founded by named, identifiable individuals — Tycho Onnasch, Fernando Foy, and Emil E. — with verifiable professional backgrounds (Oxford, Polytechnique Montréal, Warwick, prior roles at Trust Machines and HSBC). Backing from Tim Draper, Binance Labs/YZi Labs, Flow Traders, and Trust Machines adds institutional accountability. Smart contracts are open-source on GitHub, and the team publicly disclosed and remediated a 2024 exploit rather than obscuring it. This is a non-anonymous, operationally transparent project by DeFi standards, though the fact that governance remains centrally controlled introduces its own disclosure caveat.
The protocol has been audited multiple times: CoinFabrik (2022), Least Authority (March 2023), and several rounds by Clarity Alliance (2024–2026), plus Asymmetric Research and Greybeard Security for V2. These audits identified and remediated numerous critical/high-severity findings, which is a meaningfully positive gharar signal. However, the April 2024 exploit (~$897K, via collateral-list manipulation) demonstrates that audit coverage did not fully preempt real financial loss, and conflicting third-party claims about staking terms (KuCoin's "boosted yield" claim versus official documentation) leave a residual disclosure gap that has not been fully resolved.
Maysir — Does Zest Protocol involve gambling or speculation?
Zest does not resemble a gambling mechanism or a speculative meme instrument; it functions as an overcollateralized lending market with a clear economic purpose. Its risk profile stems from lending-market volatility and smart-contract risk rather than zero-sum betting design. The bigger practical concern for investors is not maysir but the riba-based nature of the underlying lending activity described above.
Assessment: Moderate Maysir (High Risk)
Score: 50.8/100
Our methodology examines 11 criteria to determine whether Zest Protocol is a gambling instrument or a genuine economic tool.
Zest provides genuine utility: BTC holders can earn yield or unlock liquidity against their Bitcoin without selling it, and borrowers access stablecoin liquidity using BTC as collateral, all within an overcollateralized framework designed to reduce systemic risk. With $100M+ peak TVL and status as the largest Bitcoin lending protocol on Stacks, the protocol serves a real, productive market function connecting Bitcoin capital to on-chain credit demand — a use case distinct from purely speculative or zero-sum instruments.
Against this productive core, ZEST's own market profile is modest and thinly traded — roughly $6M market cap against ~$4.6M daily volume — which signals meaningful secondary-market volatility and speculative trading interest relative to its fundamentals. This volatility is a feature of open secondary markets generally and is not, by itself, evidence of gambling-like design in the protocol. Still, investors should distinguish between using Zest's lending function (utility-driven) and trading ZEST tokens speculatively (price-driven), as the latter carries greater exposure to short-term sentiment than to protocol fundamentals.
The Full 27-Point Screening
1. Legitimacy (4 criteria)
| Criterion | Score | Analysis |
|---|
| Team Transparency | 82/100 | Founders are named with verifiable LinkedIn profiles, credentials, and a multi-year track record in Bitcoin DeFi. |
| Fraud & Scam Risk | 60/100 | A real exploit occurred in 2024 with funds stolen, but the team froze contracts, disclosed publicly, and compensated users from treasury, showing accountability rather than a rug-pull. |
| Use Case Legitimacy | 82/100 | The protocol shows genuine on-chain usage with real BTC deposits, TVL, and liquidation history rather than pure hype. |
| Ethical Practices | 30/100 | The protocol's own core design is interest-based lending and borrowing, which is a fundamental Shariah concern independent of any third-party misuse. |
Summary: Zest Protocol has a named, credentialed founding team with institutional backing and a real (if imperfect) track record including a disclosed and remediated 2024 exploit.
2. Project Operations (9 criteria)
| Criterion | Score | Analysis |
|---|
| Core Protocol Business | 22/100 | The base protocol's entire business is charging and paying interest on collateralized loans, an inherently interest-based sector. |
| Transaction Fees | 25/100 | Protocol fees are a "reserve factor" carved directly out of borrower interest payments, not a flat service charge. |
| Treasury Assets | 30/100 | Treasury inflows derive from the protocol's interest-share revenue, though a full breakdown of treasury holdings is not disclosed in these sources. |
| Revenue Model | 20/100 | Disclosed revenue is explicitly the protocol's share of borrower interest across lending pools. |
| Transparency | 85/100 | Smart contracts are open-source on GitHub and documentation is extensive and public. |
| Governance | 35/100 | Documentation explicitly states governance is not yet active and will only activate once the protocol reaches sufficient scale, meaning current control is centralized with the team. |
| Launch Fairness | 60/100 | Launch used a vested, points-based airdrop with a 5% per-wallet cap rather than a large upfront insider-favoring drop. |
| Token Distribution | 45/100 | Team and investor allocations together total roughly 47% of supply, a meaningful concentration despite vesting schedules. |
| Speculation/Utility Ratio | 72/100 | Usage is driven by real lending/borrowing activity and BTC deposits rather than speculative trading narratives alone. |
Summary: The protocol is an open-source Bitcoin lending platform on Stacks whose fees are drawn from borrower interest and whose governance is not yet live, with a fairly vested but insider-heavy token launch.
3. Financial Health (4 criteria)
| Criterion | Score | Analysis |
|---|
| Protocol Revenue | 20/100 | Protocol revenue is sourced directly from borrower interest, an interest-based (riba) revenue stream. |
| Financial Status | 50/100 | Financial data (TVL, fees, revenue, market cap) is transparently trackable but reflects a small-scale, volatile operation. |
| Interest Assessment | 12/100 | The base protocol's core function is collateralized lending and borrowing at variable interest rates, a direct riba mechanism. |
| Audit Quality | 85/100 | Multiple named firms (CoinFabrik, Least Authority, Clarity Alliance, Asymmetric Research, Greybeard Security) conducted and published audits across 2022-2026. |
Summary: Zest's core, native business is interest-based lending and borrowing, its revenue is entirely interest-derived, and it has undergone multiple named third-party security audits despite one past exploit.
4. Token Economics (5 criteria)
| Criterion | Score | Analysis |
|---|
| Token Purpose | 58/100 | ZEST is designed as a utility/governance token tied to protocol fee capture and future governance rather than pure meme branding, though governance is not yet live. |
| Governance Rights | 35/100 | Documentation explicitly states governance rights are not yet activated for token holders. |
| Rewards Distribution | 40/100 | Reward flows (liquidity mining, fee-share) are variable and usage-driven but ultimately sourced from interest revenue. |
| Speculation Controls | 55/100 | The airdrop design includes a per-wallet cap and linear vesting specifically to reduce dump/speculation risk at launch. |
| Asset Backing | 35/100 | The token has no hard-asset backing and its value is tied to protocol usage and interest-derived fee capture rather than a halal reserve. |
Summary: ZEST is a genuine utility/governance token rather than a meme, but governance rights are not yet active and its rewards trace back to interest income with no hard-asset backing.
5. Staking Mechanism
Zest Protocol has no native staking mechanism, so these five criteria are not applicable and are excluded from the score entirely rather than counted as zeros.
Overall Assessment: Zest Protocol is a legitimate, transparent, and audited Bitcoin lending project, but its core interest-based lending/borrowing design and currently inactive governance are significant Shariah-relevant concerns that keep it from being straightforwardly compliant.
Written by ThanvirFounder, Ex Director S&P Global Energy
Reviewed by Imam Omar SiddiqiShariah Scholar