Harmony ONE
Quick Answer

Is Harmony halal?

Yes, Harmony is considered halal for Muslim traders and investors with a Shariah compliance score of 75.4/100 based on our scholar-approved methodology. The staking mechanism requires careful evaluation from an Islamic perspective.

Overall75.4Halal · Recommended with Purification
Riba81.8Minor Riba
Gharar68.9Moderate Gharar (Material Uncertainty)
Maysir74.3Minor Maysir (Incidental)

Cryptocurrencies are halal due to the famous rule... if anything is widely accepted in society... it can be recognized as money.

Mufti Abdul Qadir Barakatullah
75.481.8RIBA68.9GHARAR74.3MAYSIR
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GhararSharia pillar · 68.9/100 · Review · 15 criteria

Moderate Gharar (Material Uncertainty). Prohibition of contracts with excessive ambiguity or hidden risk.

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Team Transparency & Credibility62
Ethical Practices78
Transparency72
Governance70
Launch Fairness68
Token Distribution65
Speculation / Utility Ratio72
Financial Status55
Audit Quality28
Governance Rights72
Rewards Distribution85
Asset Backing75
Mechanism Type82
Documentation72
Shariah Alignment78
How ONE compares
Hedera
87.4
MultiversX
81.2
Polygon
78.3
Cartesi
77.5
Harmony (ONE)
75.4
Injective
72.2

Compare directly: vs MultiversX · vs Hedera · vs Polygon

Purify your profits from ONE

A portion of profit from ONE isn't fully yours to keep — here's how to return it

What does "purification" mean?

Even fully screened assets can pick up small amounts of tainted income along the way — purification means giving that specific portion back, not paying extra.

Based on Harmony's riba, gharar and maysir screening — see how we calculate purification amounts.

Overseen by Imam Omar Siddiqi, Shariah scholar and Imam of JMIC, among others, with donations paid directly to Jamiya Masjid & Islamic Centre — UK registered charity no. 1089986. Sent wallet-to-wallet; CryptoUmmah never custodies your funds. Always verify the destination address before confirming in your wallet.

Halal · Recommended with Purification

Your exact purification amount, calculated from Harmony's Shariah compliance score.

$
Amount to return0.00 USDC

to Jamiya Masjid & Islamic Centre, a registered UK charity

Purification isn't Zakat and isn't tax-deductible — it's the return of income that wasn't rightfully yours.

Scholar-verified · UK registered charity
Key facts
Last reviewed
Written by
ThanvirThanvirFounder, Ex Director S&P Global Energy
Reviewed by
Imam Omar SiddiqiImam Omar SiddiqiShariah Scholar
Something changed?

Request a review for protocol changes, an error on this page, or anything else that looks off.

The research

Full Shariah compliance report for Harmony

What is Harmony?

Harmony (ONE) is a Layer-1 blockchain platform engineered for high throughput and low transaction costs through a sharded architecture and an innovative consensus mechanism. It positions itself as infrastructure for a decentralized, open economy, offering developers a scalable foundation on which to build applications that require both speed and security.

What Makes Harmony Unique?

Harmony distinguishes itself through its combination of state sharding and Effective Proof-of-Stake (EPoS), which together allow the network to process transactions in parallel across multiple shards while maintaining strong Byzantine fault tolerance. Its Fast Byzantine Fault Tolerance (FBFT) consensus mechanism enables two-second finality, a meaningful technical achievement that sets it apart from many first-generation blockchains.

Core Features

  • Sharded Architecture: Harmony divides its network into four shards that process transactions simultaneously, dramatically increasing throughput without sacrificing decentralization or security.
  • Effective Proof-of-Stake (EPoS): A staking model designed to reduce validator centralization by penalizing outsized stake concentration, distributing rewards more equitably across the validator set.
  • Cross-Chain Bridges: Native bridging infrastructure allows assets and data to move between Harmony and other major blockchains, enabling interoperability across the broader Web3 ecosystem.
  • HRC Token Standards: Support for HRC-20, HRC-721, and HRC-1155 token standards gives developers a familiar and flexible toolkit for deploying fungible tokens, NFTs, and multi-token contracts on the network.

What Is Harmony Used For?

Harmony has attracted developers building decentralized applications across gaming, NFTs, and cross-chain asset management, with its low fees and fast finality making it practical for high-frequency use cases. The protocol launched a $300 million ecosystem fund to support developer grants, regional DAOs, and hackathons, reflecting an institutional commitment to growing its builder community. Projects such as DeFi Kingdoms, a blockchain-based game and decentralized exchange, brought significant user activity to the network and demonstrated Harmony's capacity to host complex, high-traffic applications.

Alternatives to Harmony

CoinVerdictScoreNotable difference
MultiversX EGLD
Same category: Protocol
Halal81.2EGLD scores 11.2 points higher in Gharar, 6.6 points higher in Maysir and 0.7 points higher in Riba.
Purification: 1.0-1.5% of profits
Hedera HBAR
Same category: Protocol
Halal87.4HBAR scores 13.8 points higher in Gharar, 12.9 points higher in Maysir and 9.8 points higher in Riba.
Purification: 0.0-0.5% of profits
Polygon MATIC
Same category: Smart Contract Platform
Halal78.3MATIC scores 3.8 points higher in Gharar, 3.2 points higher in Maysir and 2.1 points higher in Riba.
Purification: 1.0-1.5% of profits
Cartesi CTSI
Same category: Smart Contract Platform
Halal77.5CTSI scores 2.8 points higher in Gharar, 2.5 points higher in Maysir and 1.4 points higher in Riba.
Purification: 1.0-1.5% of profits
Injective INJ
Same category: Smart Contract Platform
Halal72.2INJ scores 6.5 points lower in Riba, 3.7 points lower in Maysir and 1.1 points higher in Gharar.
Purification: 2.0-2.5% of profits
Kadena KDA
Same category: Protocol
Mashbooh70KDA scores 10.1 points lower in Maysir, 8.9 points lower in Gharar and 1.2 points higher in Riba.
Purification: 2.0-2.5% of profits
Gnosis GNO
Same category: Protocol
Mashbooh68.5GNO scores 10.3 points lower in Riba, 6.6 points lower in Maysir and 3.2 points lower in Gharar.
Purification: 3.5-5.5% of profits
Stellar XLM
Same category: Smart Contract Platform
Halal87.3XLM scores 12.3 points higher in Riba, 12 points higher in Maysir and 11.4 points higher in Gharar.
Purification: 0.0-0.5% of profits

ONE and Islamic finance principles

Islamic Finance Principles Assessment

Riba - Does Harmony Include Any Interest-Based Elements?

Harmony's core protocol does not incorporate interest-bearing mechanisms at the design level. Transaction fees are burned rather than accumulated as yield, and staking rewards are derived from block emissions rather than from lending or debt instruments. For Muslim investors, the protocol's revenue architecture is structurally free of riba in its base form.

Assessment: Minor Riba Score: 81.8/100

Our methodology examines 10 specific criteria to evaluate how well Harmony avoids interest-based mechanisms.

Harmony does not operate a revenue model that extracts fees into a central treasury. Transaction fees paid by users are permanently burned, reducing the circulating supply of ONE rather than generating income for any protocol entity. Block rewards are distributed directly to validators and their delegators through the staking mechanism, with no intermediary retention. The $300 million ecosystem development fund announced in 2019 was allocated toward grants, DAOs, and developer incentives rather than deployed into interest-bearing financial instruments, though the research does not provide granular detail on how residual treasury assets are currently held. Absent evidence of bond holdings, lending positions, or yield-bearing financial products within the treasury, there is no confirmed riba-based income stream at the protocol level.

Staking rewards on Harmony are variable and performance-linked rather than fixed, which is the critical distinction from a riba perspective. Validators earn ONE tokens as block rewards, with the amount depending on network participation rates, the validator's uptime and effectiveness, and the overall staking ratio across the network. Delegators share in these rewards proportionally to their stake, after a commission set by each validator. Because rewards fluctuate with real network conditions and are sourced from newly issued tokens representing genuine economic participation in consensus, rather than from a predetermined interest rate on a loan, the structure is analogous to profit-sharing arrangements recognized as permissible in Islamic commercial law. There is no guaranteed return, and the delegator bears the risk of slashing for validator misbehavior.


Gharar - How Much Uncertainty Does Harmony Involve?

Harmony presents a moderate level of uncertainty, reduced by its open-source codebase and publicly documented architecture, but elevated by questions around long-term ecosystem recovery following the 2022 Horizon bridge exploit. The protocol's technical transparency is a meaningful mitigant, though investors should weigh the genuine uncertainty surrounding adoption trajectory and treasury governance. On balance, the uncertainty present is of the ordinary commercial variety rather than the contractual ambiguity that Islamic law specifically prohibits.

Assessment: Moderate Gharar (Material Uncertainty) Score: 68.9/100

Our methodology examines 15 specific criteria including team transparency, audit quality, and governance.

Harmony was founded by Stephen Tse, a former Google and Apple engineer, alongside a publicly identified team with verifiable professional backgrounds. The project's codebase is open-source and available for independent review, which substantially reduces informational asymmetry between the development team and the broader community. Whitepapers, technical documentation, and governance proposals are publicly accessible. The team has communicated openly about the 2022 bridge exploit and subsequent recovery efforts, including a proposal to reissue ONE tokens to compensate affected users. While the pace and completeness of that recovery have been subjects of community debate, the existence of public deliberation itself reflects a degree of institutional transparency that reduces gharar at the governance level.

Harmony's smart contracts and core protocol have been subject to third-party security audits, a standard practice among credible Layer-1 networks that reduces the hidden-risk dimension of gharar. The token's economic parameters, including its issuance schedule, staking mechanics, and fee-burning policy, are documented and verifiable on-chain. Risk disclosures around bridge security proved inadequate prior to the 2022 exploit, which is a legitimate transparency concern. However, that event has since been publicly acknowledged and addressed in governance discussions. Investors engaging with the protocol today have access to substantially more risk information than was available before the exploit, and the terms of participation in staking and network use are clearly defined and consistently applied.


Maysir - Does Harmony Involve Gambling or Speculation?

Harmony is not designed as a gambling instrument and does not incorporate chance-based reward mechanisms at the protocol level. Its value proposition rests on providing scalable blockchain infrastructure for real applications, and participation through staking involves genuine economic contribution to network security. The speculative behavior that occurs in secondary markets is a characteristic of how market participants choose to trade the asset, not a feature of the protocol's own design.

Assessment: Minor Maysir (Incidental) Score: 74.3/100

Our methodology examines 11 specific criteria to determine if Harmony is primarily a gambling instrument or a genuine economic tool.

Harmony's genuine utility is grounded in its function as a high-throughput settlement layer for decentralized applications. Developers use the network to deploy smart contracts, issue tokens, and build user-facing products that require fast and affordable transaction processing. The sharded architecture was purpose-built to solve a real technical problem — the scalability trilemma — rather than to generate artificial scarcity or speculative excitement. Validators contribute computational resources and stake capital to secure the network, receiving rewards that reflect their productive participation in consensus. This is an economically substantive activity: the network would not function without validators, and the rewards they earn are compensation for a real service rendered to the ecosystem, not a prize won by chance.

The presence of speculative trading in ONE on secondary markets is a factual observation about market behavior, not a characteristic of the protocol itself. Fiat currencies, commodities, and equities are all subject to speculative trading without that activity rendering the underlying asset impermissible. Harmony's adoption history, including the significant user activity generated by DeFi Kingdoms and the developer grant program, demonstrates that the network has attracted genuine productive use beyond price speculation. The ecosystem suffered a setback with the bridge exploit, and some of the subsequent decline in activity reflects real loss of confidence rather than pure speculation unwinding. Nevertheless, the protocol continues to process transactions, support active validators, and maintain an open development environment, all of which are markers of an asset with substantive real-world function rather than one whose value is purely speculative or chance-dependent.

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ONE staking and rewards

Is Staking Harmony Halal?

Staking Harmony (ONE) through its delegation mechanism is permissible under Islamic finance principles, as it reflects genuine risk-sharing arrangements consistent with classical partnership contracts rather than interest-bearing lending. The variable nature of rewards and the absence of guaranteed returns align with the foundational Shariah requirement that profit must accompany risk. As with any significant financial commitment, holders of substantial amounts are encouraged to consult a qualified Islamic scholar for personalised guidance.

Staking Score: 80/100

Islamic Contract Classification: Harmony's delegation staking model maps most naturally onto a combination of Wakalah and Mudarabah, both of which are well-established and permissible Islamic contract structures. Under the Wakalah framing, the delegator appoints a validator as an agent to perform the technical work of block production and network validation, with the delegator retaining ownership of the tokens throughout. The Mudarabah dimension is equally present, in that rewards generated from block production and transaction fees are shared proportionally between validators and delegators according to their respective contributions, without any fixed or predetermined return being promised to either party. Crucially, slashing risk — where validator misbehaviour such as double-signing results in proportional losses for delegators — introduces genuine shared downside, which is precisely the kind of risk-bearing that distinguishes permissible profit-sharing from prohibited interest. There is no evidence of a Qard arrangement, meaning tokens are not lent to validators in exchange for a fixed return, and the overall structure therefore avoids the core riba concern that would arise in such a scenario.

How It Works: Harmony operates under its Effective Proof-of-Stake consensus through a non-custodial delegation model, meaning delegators retain control of their ONE tokens at all times and are not required to surrender custody to a third party. Users delegate to validators who run the actual network nodes, with a relatively accessible minimum threshold for delegators. Tokens are subject to a lock-up period during active delegation, and undelegation is supported, providing a degree of liquidity flexibility. The slashing mechanism, which penalises validators and their delegators proportionally for provable misconduct such as double-signing, ensures that the arrangement carries real economic risk on both sides, reinforcing its compatibility with Islamic partnership principles.

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Final verdict: is Harmony halal?

Is Harmony Shariah Compliant?

Overall Shariah Compliance: 75.4/100

Halal (Light Purification)

Harmony earns a light purification classification because its core design is that of a functional, utility-driven blockchain with genuine use cases in transaction settlement, governance, and decentralised application infrastructure. Its staking mechanism reflects authentic risk-sharing rather than any form of riba, and its variable reward structure avoids the gharar of guaranteed returns. The residual concern warranting light purification arises from the protocol's open support for broader DeFi activity on its network, which can include instruments carrying elements of gharar or maysir, even though such third-party usage is not determinative of the coin's own Shariah standing.

In our screening, Harmony scores 75.4/100 overall — Riba 81.8/100, Gharar 68.9/100, Maysir 74.3/100.

Recommended Purification: 1.5-2.0% of profits

  • Calculate net profits from all Harmony holdings and staking rewards
  • Donate 1.5-2.0% to charity (these are not zakat recipients — use separate charitable channels)
  • Example: $1,000 profit -> $15-20 to charity -> $980-985 remains halal
  • Suitable causes: medical relief, orphan support, disaster relief, clean water projects
  • Learn more about the purification process

Action Steps:

Disclaimer: This analysis is current as of July 2026. Always verify current status and consult scholars.

Last Updated: July 11, 2026

27-point Shariah breakdown of ONE

Comprehensive Shariah Compliance Screening

Our 27-point methodology evaluates Harmony across five dimensions:

1. Legitimacy Screening (4 Criteria)

CriterionScoreDetailed Analysis
Team Transparency62/100Harmony's founding team includes named professionals with verifiable tech backgrounds, but the research notes limited detail on full public profiles and credentials, leaving team transparency only partially established.
Fraud & Scam Risk85/100No fraud allegations, rug-pull indicators, or regulatory warnings are noted against Harmony, and its established history as a validator-based proof-of-stake chain provides reasonable trust signals.
Use Case Legitimacy82/100Harmony serves as a genuine Layer-1 infrastructure protocol enabling scalable dApps, cross-chain bridges, and high-throughput transactions, demonstrating clear real-world utility beyond speculation.
Ethical Practices78/100Harmony's own protocol design is infrastructure-neutral and does not target any haram industry, with its open architecture even hosting Shariah-compliant projects, though no formal ethical code is documented.

Legitimacy Summary: Harmony presents as a credible Layer-1 infrastructure project with named leadership and no fraud indicators, though team transparency and formal ethical documentation remain only partially established.


2. Project Operations Screening (9 Criteria)

CriterionScoreDetailed Analysis
Core Protocol Business85/100The base protocol operates solely as blockchain infrastructure for transaction processing and smart contract execution, with no involvement in prohibited sectors by its own design.
Transaction Fees88/100Transaction fees on Harmony are burned rather than retained by the protocol, removing any riba-like extraction mechanism and benefiting all holders proportionally through supply reduction.
Treasury Assets60/100The research references a large ecosystem development fund but provides no clarity on whether treasury assets are held in interest-bearing instruments, leaving a meaningful transparency gap.
Revenue Model85/100The base protocol collects no revenue in the traditional sense, as fees are burned and block rewards flow directly to validators and delegators rather than to any central treasury.
Transparency72/100Harmony is described as open-source with publicly available technical documentation, though the research does not confirm accessible governance proposal systems or comprehensive ongoing disclosures.
Governance70/100Harmony implements on-chain governance through a DAO structure with ONE token holder participation, but specific governance proposal mechanisms and voting thresholds are not well documented in the research.
Launch Fairness68/100Initial token allocation was described as transparent across ecosystem grants, reserves, founders, and community, though the research lacks sufficient detail to fully assess insider advantage at launch.
Token Distribution65/100Token distribution covers multiple categories including community and ecosystem grants, but the research does not provide granular data on concentration levels or vesting schedules to confirm broad fairness.
Speculation/Utility Ratio72/100ONE functions as a genuine utility token integral to network operations including fees, staking, and governance, though as a tradable Layer-1 asset it carries inherent speculative trading activity alongside its utility.

Operations Summary: The protocol's fee-burning model, open-source architecture, and DAO-based governance reflect sound operational design, though treasury asset composition and governance documentation need greater clarity.


3. Financial Health Screening (4 Criteria)

CriterionScoreDetailed Analysis
Protocol Revenue85/100Protocol revenue is structurally absent at the base layer since fees are burned, and staking rewards derive from inflation and network activity rather than any interest-based mechanism.
Financial Status55/100Historical metrics show significant prior network activity, but the research lacks current market data, burn rate quantification, and detailed financial disclosures, limiting confidence in ongoing financial stability.
Interest Assessment90/100The base Harmony protocol has no native lending or borrowing mechanism, and staking rewards are issuance-based rather than derived from interest, keeping the protocol core free of riba.
Audit Quality28/100The research identifies no named audit firms, specific audit dates, or published findings for Harmony, representing a significant gap in security assurance despite some tokenomic transparency.

Financial Summary: Harmony's base protocol is structurally free of riba through its fee-burning and inflation-based staking reward model, but the absence of named security audits and limited current financial disclosures are notable weaknesses.


4. Token Economics Screening (5 Criteria)

CriterionScoreDetailed Analysis
Token Purpose80/100ONE is a genuine utility token deeply integrated into network operations including transaction fees, consensus participation, and governance, clearly distinguishing it from meme or purely speculative tokens.
Governance Rights72/100ONE holders possess on-chain voting rights over protocol changes and network proposals, with delegators able to participate in governance decisions, though procedural details are not fully documented.
Rewards Distribution85/100Staking rewards are variable and depend on network participation, stake size, and performance rather than being fixed or guaranteed, aligning with performance-based distribution principles.
Speculation Controls65/100EPoS implements adaptive stake thresholds to prevent whale concentration and fee burning provides indirect stability, but explicit lock-up periods and direct anti-speculation mechanisms are not strongly evidenced.
Asset Backing75/100ONE derives its value from genuine utility as the fuel for a functioning sharded blockchain rather than from asset backing, with no evidence of backing by haram or interest-bearing assets.

Tokenomics Summary: ONE functions as a genuine multi-purpose utility token with on-chain governance rights and anti-concentration staking mechanics, though speculation controls and distribution transparency could be more robustly evidenced.


5. Staking Mechanism Screening (5 Criteria)

CriterionScoreDetailed Analysis
Mechanism Type82/100Harmony's delegation staking is non-custodial with users retaining token control, flexible undelegation is supported, and slashing terms for validator misbehavior are clearly disclosed.
Islamic Contract Classification80/100The delegation model aligns well with Wakalah and Mudarabah frameworks through agency-based validator appointment and proportional profit-sharing without guaranteed returns or token lending.
Rewards Structure85/100Rewards are variable and sourced from both protocol inflation and transaction fees with no fixed guarantees, and automatic compounding is available, reflecting a performance-linked rather than interest-like structure.
Documentation72/100Core staking terms including delegation minimums, slashing conditions, and reward sources are reasonably documented, though exact lock-up durations and comprehensive risk disclosures are not fully detailed in available sources.
Shariah Alignment78/100The EPoS mechanism exhibits low exploitation risk through proportional rewards and anti-centralization caps, with moderate gharar from variable rewards and slashing mitigated by transparent and publicly accessible rules.

Staking Summary: Harmony's non-custodial delegation staking aligns well with Wakalah and Mudarabah principles through variable, performance-linked rewards and shared risk, with reasonable but not exhaustive documentation of terms.


Overall Assessment:

Harmony presents a structurally sound Layer-1 blockchain with meaningful Shariah-compatible features at the protocol level, particularly its fee-burning model and variable staking rewards, though gaps in audit transparency, treasury disclosure, and formal Islamic finance certification prevent a fully confident halal assessment.

Frequently asked questions
Is delegating Harmony to a stake pool permissible?

Delegating Harmony to a stake pool is generally permissible as it functions similarly to a participatory arrangement where validators perform network security work and rewards are distributed proportionally, which aligns with profit-sharing principles rather than guaranteed interest.

Do I need to purify my Harmony staking rewards?

Yes, a purification of 1.5-2.0% of profits is recommended given that Harmony's overall halal score reflects some exposure to impermissible activities, and this purification should be donated to charity to cleanse any doubtful earnings.

Are Harmony staking rewards considered riba?

Harmony staking rewards are not considered riba in the classical sense because they are generated through active network participation and validation work rather than a predetermined fixed return on a loan, making them closer to legitimate profit-sharing income.

How do I calculate zakat on my Harmony holdings?

Zakat on Harmony holdings is calculated at 2.5% of the total market value of your holdings that have been in your possession for a full lunar year and meet or exceed the nisab threshold, with the valuation taken at the time zakat becomes due.

Can I gift Harmony to family members as a Muslim?

Gifting Harmony to family members is permissible in Islam as hibah, or gift-giving, is an encouraged practice in Islamic tradition, provided the asset itself is considered halal and the gift is given freely without conditions that would render it a disguised financial transaction.

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