Spark Protocol — a DeFi project that emerged from the MakerDAO ecosystem and is now connected to Sky Protocol, combining lending, savings products, and liquidity allocation across different markets. Initially, Spark was primarily known for SparkLend — a lending protocol that allows users to supply assets and borrow against collateral. Following MakerDAO’s transition to Sky, the Spark ecosystem expanded to include SparkLend, Spark Savings, and the Spark Liquidity Layer. As a result, the project has gradually evolved from a standalone DeFi lending market into capital management infrastructure spanning DeFi, CeFi, and tokenized real-world assets.
Contents
- Spark Protocol: From MakerDAO Lending to the Sky Ecosystem
- DeFi Lending: Deposits, Loans and Collateral
- Spark Savings and Spark Liquidity Layer
- SPK Token: Governance, Staking and Tokenomics
- Risks and Prospects of Spark Protocol in DeFi
1. Spark Protocol: From MakerDAO Lending to the Sky Ecosystem
Spark emerged as part of the development of MakerDAO’s lending infrastructure. Its key user-facing product became SparkLend — a decentralized money market architecturally connected to the Aave model and adapted for the liquidity and stable assets of the Maker ecosystem. This made it possible to combine conventional DeFi lending with DAI and other assets within a single system.
In 2024, MakerDAO began its transition to the Sky brand. Alongside this change, USDS was introduced as a new ecosystem stablecoin, while SKY emerged as the successor to MKR. DAI and MKR were not automatically discontinued: migration to the new assets was organized as a separate process. Spark became one of the key independent components of the new Sky structure.
As the project developed, Spark’s functionality expanded beyond conventional lending. Its current model can be described as an onchain capital allocator: capital is distributed across lending markets, DeFi protocols, centralized counterparties, and RWA instruments. User-facing products simplify part of this liquidity allocation process through more familiar savings and lending interfaces.
Therefore, defining Spark exclusively as a “MakerDAO lending protocol” reflects its origins but no longer fully describes its current architecture. Spark remains closely connected to Sky liquidity and USDS while simultaneously developing its own product and governance ecosystem.
2. DeFi Lending: Deposits, Loans and Collateral
SparkLend is an overcollateralized lending market. Users can supply supported assets to the protocol, while borrowers can use approved collateral to access liquidity. A major focus is stablecoins: Spark allows users to borrow USDS and USDC while supporting a range of liquid crypto assets for collateral and other operations.
Assets used within SparkLend have included ETH and various liquid staking or wrapped instruments, such as wstETH, rETH, and weETH, as well as selected tokenized versions of Bitcoin. The range of markets and their parameters is not permanent: new assets can be added, limits can change, and individual markets may gradually be phased out through governance procedures.
Main SparkLend mechanisms include:
- supplying supported assets to the lending market;
- borrowing USDS and USDC against collateral;
- using ETH, liquid staking tokens, and other approved assets;
- variable LTV and liquidation threshold parameters for different collateral types;
- automatic liquidation of undercollateralized positions;
- management of supply and borrowing limits;
- the use of oracles to determine collateral value.
A key risk factor for borrowers is the relationship between outstanding debt and collateral value. If the price of a collateral asset declines and the position crosses the established liquidation threshold, it may be liquidated. For this reason, the maximum available borrowing capacity should not be treated as a safe level of debt exposure.
One distinctive feature of Spark is the connection between interest rates on major stablecoins and parameters within the Sky ecosystem. For certain markets, rates may be determined by governance and Sky base rates rather than changing solely in response to current pool utilization. This differentiates parts of Spark’s lending model from fully autonomous money markets.
3. Spark Savings and Spark Liquidity Layer
In addition to SparkLend, the ecosystem includes Spark Savings — a product designed for allocating stable assets and ETH. The user interface supports assets such as USDC, USDT, PYUSD, USDS, and ETH, while yield sources are connected to Spark’s broader capital allocation system. The specific availability of products and assets may vary across networks and jurisdictions.
The infrastructure layer of the project is the Spark Liquidity Layer, or SLL. It distributes liquidity across external markets and financial venues instead of concentrating capital exclusively within SparkLend. Potential destinations include DeFi protocols, stablecoin pools, lending platforms, CeFi counterparties, and tokenized RWA instruments.
| Component | Function | Primary Role |
|---|---|---|
| SparkLend | DeFi lending | Asset supply and collateralized borrowing |
| Spark Savings | Savings product | Earning yield on supported assets |
| Spark Liquidity Layer | Capital allocation | Allocating liquidity across DeFi, CeFi, and RWA |
| USDS | Sky stablecoin | Liquidity, savings, and lending |
| SPK | Spark token | Governance, staking, and ecosystem participation |
SLL interacts with infrastructure beyond Spark itself. At different stages, Spark has allocated or proposed allocating capital through Aave, Morpho, Curve, and other markets. In the RWA segment, the system uses structures connected to tokenized financial instruments, expanding potential yield sources beyond conventional crypto lending.
This architecture positions Spark as a link between Sky capital and external markets. Instead of manually moving liquidity between multiple protocols, users can interact with Spark products while capital allocation is handled at the infrastructure level according to established limits and risk parameters.
4. SPK Token: Governance, Staking and Tokenomics
SPK is the native token of the Spark ecosystem and entered circulation in 2025. Its maximum supply is set at 10 billion tokens. When SPK was listed on Binance in June 2025, approximately 1.7 billion tokens, or 17% of the maximum supply, were in circulation. The allocation structure includes long-term programs associated with the Sky ecosystem, along with other categories defined by the tokenomics model.
The primary function of SPK is connected to governance. Holders can participate in decision-making or delegate their voting power to other participants. As Spark becomes institutionally separated from the original MakerDAO structure, its own governance token enables the project to develop a dedicated governance mechanism.
SPK also supports staking. The model connects token staking with the security of specific components of Spark infrastructure, including mechanisms associated with transferring liquidity between networks. Staking positions can be represented through stSPK, while participation in staking does not necessarily remove a holder’s governance rights.
It is important to distinguish SPK from Sky Protocol tokens. SPK belongs directly to Spark, while SKY is the governance token of Sky and the successor to MKR. Similarly, USDS is part of Sky’s stablecoin infrastructure rather than being Spark’s native governance token. These systems are closely interconnected but perform different functions.
5. Risks and Prospects of Spark Protocol in DeFi
Spark’s expansion from a lending protocol into a capital allocator creates a more complex risk structure. SparkLend is exposed to standard DeFi lending risks, including changes in collateral value, liquidations, oracle failures, smart contract vulnerabilities, and insufficient liquidity for certain assets. The use of borrowed funds can further amplify the effects of market volatility.
The Spark Liquidity Layer introduces risks associated with external platforms. If capital is allocated to a third-party DeFi protocol, an RWA structure, or a centralized counterparty, the overall risk profile no longer depends solely on Spark’s security. Additional risks include counterparty exposure, external smart contracts, bridges, stablecoin issuers, and underlying assets.
At the same time, this model allows Spark to deploy liquidity more broadly than a traditional isolated lending market. Integrations with Aave, Morpho, Curve, and other markets illustrate the transition toward infrastructure connecting multiple segments of DeFi. In 2026, governance proposals continued to expand SparkLend and the Liquidity Layer with new stablecoins, liquidity routes, and external vaults.
As a result, Spark Protocol can be viewed not only as a successor to MakerDAO’s lending infrastructure but also as an independent onchain capital allocator within the broader Sky ecosystem. SparkLend provides the lending market, Spark Savings simplifies access to savings products, and the Spark Liquidity Layer distributes capital across different yield sources. The model’s future development will depend on effective risk management, the stability of USDS and other supported assets, the security of external integrations, and the ability of governance to manage the system’s growing complexity.
