Based on my research, I can now provide a comprehensive overview of Sky (SKY) cryptocurrency. Note that there are multiple projects with similar names; this overview focuses on Sky Protocol, the primary DeFi project that rebranded from MakerDAO.
Sky (SKY) Cryptocurrency: Comprehensive Overview
Core Technology and Blockchain Architecture
Sky's technology operates on the Ethereum blockchain, utilizing smart contracts for collateralized debt positions to generate USDS stablecoin. It employs a stability fee mechanism and debt auctions to maintain peg stability. Sky runs entirely on the Ethereum blockchain and uses smart contracts to keep the system transparent and reliable.
SkyLink is the system that provides the rails for the Sky.money web app and Sky Ecosystem projects, such as Spark, to bridge assets between the Sky Protocol on Ethereum Mainnet and a growing number of supported Layer 2 (L2) networks. SkyLink enables end users on L2s, such as Base, Arbitrum, Optimism and Unichain to tap into Sky Protocol features via the Sky Ecosystem projects' rails. If you have shied away from the Ethereum blockchain due to the high price of gas, SkyLink introduces reduced fees and faster transaction speeds.
Primary Use Cases and Real-World Applications
The Sky Ecosystem is a decentralized financial infrastructure built around the USDS stablecoin and the SKY governance token. It is designed to enable permissionless and non-custodial access to DeFi products.
On the Sky platform, users can generate stablecoins, USDS (Sky Dollar) or the legacy DAI, by locking up crypto assets in smart contracts. Supported assets include ETH, BAT, USDC, TUSD, ZRX, MANA and more. This makes Sky useful for managing volatility, accessing cash without selling crypto, and maintaining a predictable unit of value.
Use USDS to access the Sky Savings Rate (SSR) and accumulate additional USDS over time. Use USDS to access Sky Token Rewards and support Sky ecosystem projects.
Founding Team, Key Developers, and Project History
MakerDAO, the project that would later become Sky, was founded in 2015 by Rune Christensen. The goal was to address the volatility of cryptocurrencies such as Bitcoin and Ethereum by creating a decentralised stablecoin that could hold its value. MakerDAO began in 2014, as a small community-governed project responsible for developing the Maker Protocol on the Ethereum blockchain. Maker quickly grew to find success with the development of its DAI stablecoin. DAI enabled the Maker Protocol to become the first decentralised finance (DeFi) liquidity protocol with a product-market fit.
The new decentralised Sky ecosystem, launched in 2024, has taken the former Maker decentralised protocol to the next level with new technology that focuses on resilience and simplicity while remaining non-custodial. It officially rebranded to Sky Protocol on August 27, 2024, introducing new tokens—SKY (as the governance token) and USDS (replacing the stablecoin DAI).
Tokenomics: Supply, Distribution, and Mechanics
Token Supply and Circulation
Based on current market data, 23 Billion tokens are tradable on the market today. The protocol has implemented deflationary mechanisms to manage supply dynamics.
Token Conversion and Distribution
SKY is the governance token of the Sky Ecosystem, replacing Maker's MKR token at a rate of 1:24,000. Upgrade DAI to USDS 1:1, and MKR to the SKY governance token at a rate of 1:24,000.
Deflationary Mechanics
Deflationary mechanics: Protocol revenue funds weekly SKY buybacks, reducing supply and aligning incentives. Sky Protocol's repurchase amount exceeded 80 million USDS, and 1.25 billion SKY tokens have been repurchased.
Reward Distribution
The protocol distributes 600 million SKY tokens annually to USDS holders.
Consensus Mechanism and Network Security Model
SKY is a governance token — a digital voting share — for the Sky Protocol, a decentralized system running on the Ethereum blockchain. Governing with Smart Contracts: The protocol is governed by its community using a set of rules called the Sky Atlas. Changes are executed using smart contracts.
The Sky Savings Rate is variable, determined by ecosystem governance through a process of decentralised onchain voting. Decisions regarding the Sky Protocol, its tokens and features are made by Sky ecosystem governance token holders through a system of decentralised on-chain voting.
Key Partnerships and Ecosystem Integrations
Sky Stars Ecosystem
Sky Stars are independent decentralised projects within the Sky ecosystem. They are designed to enable focused, fast-moving innovation and expansion, and serve as gateways to the Sky Protocol. Spark is the very first Sky Star and is already a top DeFi lending platform.
Cross-Chain Integration
The protocol launched USDS, a next-generation, cross-chain stablecoin (DAI successor) deployed on both Ethereum and Solana, designed for yield generation and DeFi-native utility.
Funding and Institutional Support
In October 2025, Sky Protocol completed a $10M Series A Funding targeting mainnet upgrades, developer ecosystem growth, and further institutional integration.
Competitive Advantages and Unique Value Proposition
Sky differentiates itself through its upgrade of MakerDAO's core module with a focus on scalability, resilience, and user control. Its modular governance system, Layer 2 interoperability via SkyLink, and independent Sky Stars projects give it a competitive edge in flexibility and innovation.
Sky reimagines MakerDAO's legacy with a focus on modular growth, sustainable yields, and governance accessibility. Its dual-token model (USDS + SKY) and "Stars" framework position it as a bridge between DeFi and traditional finance.
At the center of the Sky ecosystem is USDS, the successor to DAI. This stablecoin maintains the core principles that made DAI successful — decentralization, transparency, and stability — while adding new features.
Current Development Activity and Roadmap Highlights
Recent Developments
In May 2025, the protocol completed its Endgame transition, retiring the MKR token and launching SKY as its new governance asset. In June 2025, the SPK token was launched with 10 billion tokens minted at genesis.
Strategic Initiatives
Keel, the onchain capital allocator of the Sky ecosystem, launched the "$500 million Tokenization Regatta" campaign to attract real-world assets (RWAs) to the Solana network. This initiative offers direct funding and support to selected projects tokenizing assets like debt, credit, or funds on Solana. This campaign is part of a broader roadmap to channel up to $2.5 billion into Solana-based tokenized finance, utilizing reserves from Sky's $6 billion USDS stablecoin.
Governance Evolution
Rune Christensen outlined features in development, including SkyLink for cross-chain compatibility, srUSDS for liquid risk capital, a Hyperliquid Buyback System, and a Generator System to simplify the stablecoin system.
Ecosystem Growth
Sky Protocol's rebrand and the introduction of USDS as its flagship stablecoin gained traction, with USDS supply surging from 98.5 million to 2.32 billion, a 135% increase in five months.
Sources:
- https://sky.money/
- https://www.coingecko.com/en/coins/sky
- https://messari.io/project/sky-protocol/profile
- https://www.octobot.cloud/what-is-sky
- https://coinmarketcap.com/cmc-ai/sky/what-is/
- https://weareblox.com/en-eu/sky
- https://guide.luno.com/hc/en-gb/articles/29084663104285-What-is-Sky-SKY
- https://messari.io/project/sky-protocol
- https://defillama.com/protocol/sky
- https://iq.wiki/wiki/skymoney
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- https://www.kiln.fi/protocols/sky
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- https://www.rootdata.com/Projects/detail/Sky?k=MjQ%3D
- https://messari.io/project/sky-dollar