Overcollateralized positions
When volatile collateral backs debt, required collateral ratios and liquidations aim to protect the system if asset prices fall.
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What Is DAI Stablecoin and How Does It Work?
DAI is a dollar-pegged crypto asset created through the protocol that began as MakerDAO and now operates within the Sky ecosystem. Unlike fiat-backed stablecoins, DAI is not simply issued against dollars held by one company.
DAI is generated and supported through protocol collateral, smart contracts and market mechanisms. It remains an ERC-20 token on Ethereum, while the wider Maker-to-Sky transition has introduced USDS as the newer core stablecoin of the Sky ecosystem.
What Type of Stablecoin Is DAI?
DAI is best understood as a multi-collateral, protocol-based stablecoin.
Historically, users could generate DAI by locking approved collateral into Maker Vaults and borrowing against it. The protocol required collateral value above the value of the debt, giving the system a buffer against price changes.
The current Sky architecture is broader than the early crypto-only Maker model. Protocol collateral can include stablecoins, crypto-backed lending positions and real-world-asset structures governed through the protocol.
DAI therefore differs from both fiat-reserve stablecoins and synthetic-dollar designs.
| Model | Example | Main stability mechanism |
|---|---|---|
| Issuer-backed reserves | USDT, USDC, USDG | Issuer holds reserve assets and manages redemption |
| Protocol collateral | DAI / USDS | Collateral, protocol accounting, liquidations and peg mechanisms |
| Synthetic dollar | USDe | Crypto backing plus offsetting derivatives hedges |
How DAI Is Created
DAI is tied to the Maker/Sky protocol accounting system rather than a traditional bank minting process.
In the classic Vault model:
- A user locks approved collateral.
- The protocol assigns risk parameters such as a required collateralization ratio.
- The user can generate DAI debt against that collateral.
- If collateral value falls too far relative to the debt, liquidation mechanisms can be triggered.
- Repaying the debt allows the user to recover the remaining collateral.
The protocol has also used Peg Stability Modules and other mechanisms that allow stable assets to move against DAI and help maintain the peg.
What Is DAI Backed By?
DAI is not directly backed by one dollar in a bank account for every token.
Its backing comes from the collateral and assets held or deployed through the Sky/Maker protocol architecture. The system historically relied heavily on overcollateralized crypto positions, but its collateral composition has expanded over time.
That means the question "What backs DAI?" has two parts:
- Protocol-level backing: assets and positions recognized by the protocol support outstanding stablecoin liabilities.
- Risk controls: collateral ratios, debt ceilings, liquidation mechanisms and governance parameters determine how that backing is managed.
The collateral mix can change. Users looking for current composition should use live Sky financial/protocol dashboards rather than relying on a static article.
How DAI Tries to Stay Near $1
DAI uses multiple mechanisms instead of a simple direct bank redemption by a corporate issuer.
Peg Stability Modules
PSM-style mechanisms allow exchanges between DAI and certain other dollar-denominated assets. This can create arbitrage paths when DAI moves away from its target.
Governance and risk parameters
Protocol governance can change collateral types, debt ceilings and other parameters. These controls influence how much DAI can be generated and how risk is managed.
Together, these mechanisms aim to keep DAI close to the U.S. dollar, but a soft peg can still move during market stress.
DAI, MakerDAO, Sky and USDS: What Changed?
This is one of the most important current details missing from older DAI explainers.
MakerDAO rebranded into the Sky ecosystem and introduced USDS as its newer stablecoin. DAI and USDS are connected through a permissionless converter on Ethereum that supports 1:1 conversion in both directions without a conversion fee at the protocol-contract level.
During 2026, several major exchanges migrated user DAI balances to USDS. That does not mean the DAI smart contract suddenly stopped existing. Instead, DAI now sits inside a changed ecosystem where USDS has become the primary stablecoin for many Sky-facing products and exchange listings.
For users this means:
- DAI remains a recognizable Ethereum token;
- DAI and USDS share protocol backing/accounting relationships;
- the Sky ecosystem increasingly centers new functionality around USDS;
- exchange support for legacy DAI can differ by platform;
- wallet users should verify whether a destination wants DAI or USDS.
What Network Is DAI On?
DAI is native as an ERC-20 token on Ethereum. Representations or bridged versions can also appear in other blockchain ecosystems.
This distinction matters because "DAI network" can refer either to the canonical Ethereum token or to a bridged/wrapped representation elsewhere.
When transferring DAI:
- verify the blockchain selected by the sending wallet;
- verify the token contract or asset listing;
- confirm that the destination accepts that exact representation;
- do not assume that a familiar address format proves compatibility.
There is also no universal DAI network fee. Transfer costs depend on the blockchain and application used.
What Is DAI Used For?
DAI has historically been used as stable on-chain money inside Ethereum and DeFi.
Common uses include:
- holding dollar-denominated value in a crypto wallet;
- transferring between Ethereum addresses and compatible applications;
- borrowing and lending in DeFi;
- serving as collateral or settlement liquidity;
- moving between protocol-based and issuer-backed stablecoins;
- converting to USDT when a destination specifically requires Tether.
DAI's role is now also tied to the transition toward USDS, so platform support should be checked before sending it to an exchange.
DAI Is Not the Same as a Bank-Backed Dollar Token
DAI's architecture changes the risks a holder should evaluate.
With a fiat-backed stablecoin, the primary questions concern the issuer, custody, reserves and redemption system. With DAI, additional questions concern collateral quality, smart-contract behavior, liquidations, governance and dependence on other assets held by the protocol.
The model can be more transparent on-chain in some respects, but on-chain visibility does not eliminate market or protocol risk.
Risks and Limitations of DAI
Collateral risk
If assets backing protocol positions fall sharply, liquidations must work as intended to preserve solvency. Extreme market moves can stress this mechanism.
Smart-contract risk
DAI relies on protocol contracts and integrations. A contract vulnerability or failure in connected infrastructure can create losses or disrupt access.
Governance risk
Risk parameters and protocol changes are governed rather than fixed permanently. Governance decisions can alter collateral exposure and system behavior.
Stablecoin dependency
Parts of the broader Sky collateral system can include other stablecoins or real-world-asset structures. That creates dependencies beyond the original crypto-only model.
Migration and platform-support risk
As exchanges and applications move from DAI toward USDS, a user must verify whether the receiving platform still accepts DAI, automatically converts it or requires USDS.
DAI Compared With USDT
USDT is issued by Tether and backed through a corporate reserve model. DAI is protocol-based and supported through collateral, smart contracts and governance.
That difference affects how each stablecoin maintains its target, how transparency is provided and what risks matter most.
For the full comparison, see USDT vs DAI. The wider stablecoin comparison also places DAI alongside USDC, USDe and USDG.
To convert between the two assets, use USDT to DAI or DAI to USDT.
FAQ
Is DAI backed by USD?
Not directly in the same way as a fiat-reserve stablecoin. DAI is supported by the collateral and protocol accounting of the Maker/Sky system, which can include several types of crypto and real-world-asset exposure.
What type of stablecoin is DAI?
DAI is a multi-collateral, protocol-based dollar stablecoin. Its stability mechanisms include collateral requirements, liquidations, peg modules and governance-defined risk controls.
Who created DAI?
DAI originated from MakerDAO and the Maker Protocol. That ecosystem later rebranded and evolved into Sky, which introduced USDS as its newer core stablecoin.
Is DAI still operating?
DAI still exists on Ethereum, and Sky's protocol documentation includes a DAI↔USDS converter. However, many platforms have shifted toward USDS, so current exchange and wallet support should be checked before transferring DAI.
What does DAI stand for?
DAI is the token name rather than a conventional acronym with an official expanded form. In crypto usage it refers to the dollar-pegged stablecoin originally created by MakerDAO.
Is DAI a cryptocurrency?
Yes. DAI is an ERC-20 crypto token on Ethereum designed to maintain a value near the U.S. dollar.
Is DAI safe?
DAI should be evaluated through its specific risks rather than a simple safe/unsafe label. Relevant factors include collateral quality, liquidation performance, smart-contract risk, governance, depeg risk and the current Maker-to-Sky transition.