DAI is a decentralized stablecoin pegged to the US dollar, issued by MakerDAO (now rebranded as Sky Protocol). Its primary objective is to maintain a 1:1 exchange rate with the US dollar, offering relative price stability compared to highly volatile cryptocurrencies.
Unlike centralized stablecoins like USDT and USDC, DAI operates under a decentralized finance (DeFi) governance model. It relies on smart contracts for financial transactions, eliminating dependence on centralized issuing or managing institutions.
DAI is generated through the over-collateralization of crypto assets, ensuring its value stability.
This article explores DAI’s core features, uses, potential risks, and how it compares to other dollar-backed stablecoins.
What Is DAI?
DAI is a decentralized stablecoin designed to mirror the value of the US dollar. Launched in 2017 by MakerDAO on the Ethereum blockchain, it operates as an ERC-20 token. Initially, it only accepted ETH as collateral (Single-Collateral DAI). Since 2019, it has supported multiple crypto assets, including WBTC and USDC (Multi-Collateral DAI).
Transparency is a key feature: all transactions are recorded on the blockchain, and the system is governed by smart contracts and community voting.
As of February 2025, DAI is the fourth-largest stablecoin by market capitalization, standing at $5.37 billion.
Note: In August 2024, MakerDAO rebranded to Sky Protocol and introduced a new ecosystem token, SKY, and an upgraded stablecoin, USDS. DAI remains in circulation alongside USDS.
How Does DAI Work?
Over-Collateralization Mechanism
Unlike centralized stablecoins backed by fiat reserves, DAI uses over-collateralization with crypto assets. Users deposit cryptocurrencies worth more than the DAI they wish to generate. If the collateral’s value falls below a certain threshold (liquidation ratio), it is automatically liquidated to maintain DAI’s dollar peg.
For example, to generate $35 worth of DAI, a user might need to deposit $50 worth of ETH. The exact collateral ratio is determined by MakerDAO governance.
Governance by MKR Token Holders
Holders of MKR (now SKY) tokens vote on key parameters:
- Accepted collateral types
- Liquidation ratios
- Risk parameters
- Stability fees
This decentralized governance ensures that the system adapts to market conditions.
Supply and Price Stability
DAI’s supply adjusts based on market demand:
- If DAI trades above $1, borrowing fees decrease to encourage more generation.
- If it trades below $1, fees increase to reduce supply and lift the price.
Generating DAI: Step-by-Step
- Create a Vault: Deposit crypto collateral into a smart contract vault.
- Generate DAI: Borrow DAI against the collateral up to the allowed ratio.
- Repay to Reclaim: Return the borrowed DAI plus stability fees to unlock the collateral.
- Close the Vault: Withdraw the collateral once the debt is settled.
All transactions are recorded on-chain, eliminating the need for third-party audits.
Uses and Applications of DAI
1. Store of Value
DAI offers a stable haven during crypto market volatility. Investors can convert volatile assets into DAI without cashing out into fiat, avoiding exchange fees and delays.
2. DeFi Payments and Transactions
As an ERC-20 token, DAI is widely used across DeFi platforms for:
- Trading on decentralized exchanges (DEXs)
- Yield farming and liquidity mining
- Purchasing NFTs
- Lending and borrowing protocols
3. Low-Cost Cross-Border Transfers
DAI enables cheap, fast international transactions without traditional banking intermediaries. This makes it ideal for remittances and global payments.
DAI vs. Other Major Stablecoins
Here’s a comparison of the top stablecoins as of February 2025:
| Stablecoin | USDT | USDC | USDe | DAI | FDUSD |
|---|---|---|---|---|---|
| Type | Centralized | Centralized | Decentralized | Decentralized | Centralized |
| Backing | Fiat, cash equivalents | Cash, U.S. Treasuries | Crypto derivatives | Crypto assets | USD, U.S. Treasuries |
| Governance | Tether | Circle, Coinbase | Ethena Labs | MakerDAO | FD121 Limited |
| Transparency | Quarterly reports | Monthly reports | On-chain data | On-chain data | Monthly reports |
DAI stands out for its decentralized governance and crypto-backed model. However, it trails behind USDT and USDC in market cap and trading volume.
Is DAI Risky?
While DAI avoids centralization risks, it faces several unique challenges:
1. Crypto Collateral Volatility
Sharp declines in collateral value (e.g., ETH or BTC crashes) can trigger mass liquidations, potentially destabilizing DAI’s peg.
2. Governance Risks
Poor decisions by MKR/SKY token holders could impact DAI’s stability mechanisms or introduce undesirable changes.
3. Smart Contract Vulnerabilities
Bugs or exploits in smart contracts could lead to hacked vaults or failed liquidations.
4. Dependence on USDC
Approximately 34% of DAI’s collateral is USDC—a centralized stablecoin. Regulatory actions against USDC could indirectly affect DAI.
How to Buy and Trade DAI
1. Cryptocurrency Exchanges
The easiest way to acquire DAI is through major crypto exchanges like Binance, Coinbase, or Kraken. These platforms allow users to trade fiat or other cryptocurrencies for DAI.
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2. P2P Trading (Not Recommended)
Some platforms offer peer-to-peer (P2P) DAI trading. However, this method carries higher fraud and counterparty risks. Stick to reputable exchanges for better security.
Frequently Asked Questions
What makes DAI different from USDT?
DAI is decentralized and backed by crypto collateral, while USDT is centralized and backed by fiat reserves. DAI offers greater transparency through on-chain operations.
Can DAI lose its peg to the dollar?
While rare, DAI can temporarily deviate from its peg during extreme market conditions. Its monetary policies are designed to restore the peg quickly.
Is DAI a good choice for beginners?
Yes, due to its stability and ease of use on popular exchanges. However, users should understand the risks associated with DeFi and collateral volatility.
How do I earn yield with DAI?
You can lend DAI on DeFi platforms like Compound or Aave, provide liquidity in DAI pairs, or stake in approved vaults to generate interest.
What happens if my collateral is liquidated?
If your vault’s collateral ratio falls below the liquidation threshold, your assets are automatically sold to repay the DAI debt. Any remaining funds are returned to you.
Can DAI be used offline?
No, DAI exists only on the Ethereum blockchain and requires an internet connection and a compatible wallet for transactions.
In summary, DAI is a pioneering decentralized stablecoin offering transparency and independence from central authorities. While it offers notable advantages, users must remain aware of its unique risks related to crypto collateral and governance.
Always conduct thorough research and consider risk tolerance before engaging with digital assets.