DAI is a decentralized, US-dollar-pegged stablecoin originally created by MakerDAO and now maintained within the Sky Protocol ecosystem. Unlike a stablecoin that relies only on a company holding dollars in a bank, DAI is issued through blockchain-based mechanisms backed by collateral and governed through protocol rules. Its goal is to keep its market value close to $1, although the peg is not guaranteed and can fluctuate.
DAI remains an important asset in decentralized finance (DeFi), where people use it to transfer value, trade, provide liquidity, lend, borrow, and manage exposure to crypto-market volatility. In 2024, MakerDAO rebranded as Sky and introduced USDS as a newer stablecoin alongside DAI. Understanding that transition is important when researching DAI today.
What Is DAI Crypto?
DAI is an ERC-20 token on Ethereum designed to maintain a value close to one US dollar. It is often called a decentralized stablecoin because its issuance and risk-management processes rely on smart contracts, collateral, and governance rather than a single traditional bank account alone.
DAI is not the same as the US dollar, a bank deposit, or a government-backed currency. It is a crypto asset whose market price can move above or below $1. Its stability depends on the protocol’s collateral, liquidity, incentives, governance decisions, and broader market conditions.
DAI, MakerDAO, and Sky Protocol
DAI originated in the MakerDAO ecosystem. In 2024, MakerDAO began transitioning to the Sky brand and introduced USDS as a newer stablecoin in the same ecosystem. DAI continues to exist; users should not assume every DAI token has automatically changed into USDS. Availability, conversion routes, and interface features can vary, so check current official documentation before taking action.
The ecosystem’s governance has also evolved: SKY became the successor governance token to MKR through the project’s transition. Historical articles may still refer to MakerDAO, MKR, or the Dai Savings Rate (DSR), but current product names and governance mechanisms should be verified against official Sky documentation.
How Does DAI Work?
DAI’s design combines collateral, smart contracts, borrowing positions, and mechanisms intended to keep its market price close to $1. The exact assets accepted and parameters used are governed by the protocol and can change over time.
1. Users deposit collateral
A user can deposit an approved asset into a protocol vault. Historically, Ether (ETH) was central to DAI creation, while the multi-collateral system expanded the range of eligible assets. The protocol applies risk parameters to each collateral type, including how much DAI can be generated against it.
2. DAI is generated against the collateral
When a user generates DAI against collateral, they take on a debt obligation in the protocol. The collateral must be worth more than the DAI debt by the required margin. This is called overcollateralization. It provides a buffer if the market value of the collateral falls.
For example, imagine a hypothetical vault with $2,000 worth of collateral and $1,000 of DAI debt. The collateral is worth twice the debt at that moment. This is only a simplified illustration—not a recommended collateral ratio or a statement of current protocol parameters. Actual minimums and fees depend on the collateral type and current rules.
3. Collateralization and liquidation help manage risk
If collateral value falls, the vault can approach its liquidation threshold. If it breaches the applicable requirements, the protocol may liquidate collateral under its rules to cover the debt and protect the system. Liquidation can create extra costs for the borrower, and fast market movements can make managing a vault difficult.
Users who generate DAI should monitor collateral values, debt, fees, and liquidation parameters. Never assume that a position is safe simply because it was adequately collateralized when opened.
4. Market incentives support the dollar peg
DAI trades on crypto markets, so its price is influenced by supply and demand. Protocol parameters and conversion mechanisms are designed to encourage market participants to help bring its price toward $1. They cannot guarantee that DAI will always trade at exactly one dollar. Liquidity disruptions, collateral stress, governance decisions, technical incidents, or wider market turmoil can affect the peg.
What Is DAI Used For?
- Sending and receiving value: DAI can be transferred between compatible wallets and supported services without using a traditional bank transfer, though network fees may apply.
- Trading: Some exchanges and decentralized exchanges offer DAI trading pairs. Liquidity and available pairs differ by platform and network.
- DeFi lending and borrowing: Supported protocols may allow users to lend DAI, borrow against collateral, or use DAI as collateral. Smart-contract and liquidation risks remain.
- Liquidity provision: Users may supply DAI to liquidity pools. Pool returns are variable and can include smart-contract, market, and liquidity risks.
- Accounting in dollars: Because DAI aims to track the US dollar, some users use it to price or move funds within crypto applications. Its price can still deviate from $1.
- Access to on-chain finance: DAI can be used in applications that support its token contract and the relevant blockchain network.
DAI vs. USDC vs. USDT
DAI, USDC, and USDT are all designed to track the US dollar, but their structures and risk profiles differ. Broadly, USDC and USDT are commonly described as centrally issued, reserve-backed stablecoins, while DAI is associated with a decentralized protocol and collateral-based issuance. Each stablecoin has its own reserve, legal, operational, governance, and market risks.
| Feature | DAI | USDC | USDT |
|---|---|---|---|
| Target value | About $1 | About $1 | About $1 |
| General model | Protocol-issued, collateral-backed stablecoin | Centrally issued, reserve-backed stablecoin | Centrally issued, reserve-backed stablecoin |
| Key dependencies | Collateral, smart contracts, governance, liquidity | Issuer, reserves, banking and redemption arrangements | Issuer, reserves, redemption arrangements and market liquidity |
| Common uses | DeFi, transfers, trading and on-chain liquidity | Payments, trading and DeFi | Trading, transfers and market liquidity |
| Main risks | Collateral stress, peg deviation, smart-contract and governance risks | Issuer, reserve, regulatory and depegging risks | Issuer, reserve, regulatory and depegging risks |
This is a high-level comparison, not a ranking of safety. Read each issuer’s or protocol’s current documentation and understand how redemption works on the network and platform you plan to use.
What Is the Difference Between DAI and USDS?
USDS was introduced as part of the Sky ecosystem’s evolution from MakerDAO. It serves a similar broad purpose to DAI: a dollar-pegged stablecoin used in crypto and DeFi. The tokens are distinct assets with different token contracts, so do not send one to an address or service that supports only the other.
The protocol has described a 1:1 conversion relationship between DAI and USDS, but the conversion process and availability may depend on the interface, network, and applicable restrictions. Always confirm details using official Sky resources before converting. Do not rely on a search result, an unsolicited message, or an unfamiliar third-party website to provide token addresses.
Advantages of DAI
- Designed for lower volatility: Its dollar target can make it easier to price transactions than using a volatile asset such as ETH or BTC.
- On-chain transferability: DAI can move through supported blockchain wallets and applications.
- DeFi integrations: It has been used across lending, trading, and liquidity applications.
- Collateral-based design: Its system uses collateral and protocol risk parameters rather than relying solely on a simple promise to maintain a price.
- Public blockchain activity: Transfers and smart-contract interactions on public networks can generally be inspected with a block explorer, although this does not mean users are anonymous.
Risks and Limitations to Understand
A stablecoin is not risk-free, and the word “stable” describes its target rather than a guarantee.
- Peg risk: DAI may trade below or above $1, especially during market stress or liquidity disruptions.
- Collateral risk: The assets supporting the system can lose value or become difficult to liquidate.
- Smart-contract risk: Bugs, exploits, or unexpected interactions can affect protocol operations or funds.
- Governance risk: Decisions about collateral, fees, risk limits, and system upgrades can affect users.
- Third-party platform risk: An exchange, lending app, bridge, or wallet service can introduce risks separate from DAI itself.
- Network and transaction risk: Sending tokens on the wrong network or to an incompatible address can lead to loss. Transactions may also incur network fees.
- Regulatory and access risk: Rules and service availability can vary by jurisdiction and provider.
Do not treat DAI as a guaranteed savings account, insured bank deposit, or risk-free investment. If you use it in a lending pool or savings product, check how yield is generated, whether funds can be withdrawn at any time, and what losses are possible.
How to Get and Store DAI
- Choose a supported wallet or service. Confirm that it supports DAI on the exact network you intend to use.
- Verify the token. Use official documentation or a trusted block explorer to confirm the correct token contract and network. Similar names and fake tokens can appear in crypto markets.
- Acquire a small test amount first. If you are unfamiliar with the wallet or network, test a small transfer before sending a larger amount.
- Keep network fees in mind. Some networks require their native token to pay transaction fees.
- Protect wallet access. Never share your recovery phrase or private keys. Be cautious with wallet approvals, especially unlimited token allowances, and revoke approvals you no longer need when appropriate.
- Check conversion details. If you plan to convert DAI to USDS or another asset, use the official protocol interface and review the amount, fees, network, and any applicable restrictions before confirming.
DAI and Decentralized Finance
DAI has been a foundational asset in DeFi because applications can use a token with a dollar-oriented target for lending markets, liquidity pools, payments, and collateral. However, the risk of a DeFi strategy is not determined by the stablecoin alone. A user may face losses from the lending protocol, a liquidity pool, a bridge, a wallet compromise, or liquidation even if DAI remains close to $1.
For broader background, read our guide to blockchain fundamentals and our overview of blockchain scaling challenges. These topics help explain the network and infrastructure behind on-chain financial applications.
Frequently Asked Questions
Is DAI always worth $1?
No. DAI aims to stay close to $1, but its market price can move above or below that level. The peg depends on collateral, liquidity, market incentives, governance, and other factors.
Is DAI backed by US dollars in a bank?
DAI is not simply a digital receipt for one dollar held in a bank account. It is issued through a protocol that uses approved collateral and other mechanisms. The collateral mix and risk framework can change, so consult current official documentation.
Can I still use DAI after the MakerDAO rebrand?
DAI continues to exist in the Sky ecosystem. Supported wallets, exchanges, and applications may continue to offer it, but availability differs by service and network. Verify support before transferring funds.
Is DAI the same as USDS?
No. DAI and USDS are separate tokens within the Sky ecosystem, even though the protocol has described a 1:1 conversion relationship. Confirm the current official conversion process before taking action.
Can DAI earn interest?
Some platforms offer lending or savings products involving DAI, but returns vary and are not guaranteed. These products may expose users to smart-contract, liquidity, platform, and market risks.
Is DAI safe for beginners?
DAI may be easier to price than volatile cryptocurrencies, but it still requires care. Beginners should learn how wallets, networks, token addresses, transaction fees, and DeFi risks work before transferring meaningful funds.
Conclusion
DAI is a long-running decentralized stablecoin designed to track the US dollar and support transfers and decentralized finance. Its collateral-based design and broad on-chain use are important features, but its peg is not guaranteed and its risks include collateral, smart-contract, governance, liquidity, and third-party platform issues.
The transition from MakerDAO to Sky and the introduction of USDS are essential parts of DAI’s current context. Before using or converting DAI, check current official documentation, verify the network and token contract, and understand the risks of the specific wallet or application you choose. This article is educational and is not financial advice.
Official references: Sky Protocol documentation for DAI and the Sky/Maker protocol white paper.
