Dai
DAIDecentralized, crypto-collateralized stablecoin maintained by MakerDAO
Technology Stack
Introduction to Dai
Dai represents one of crypto’s most important experiments: a stablecoin that maintains its dollar peg through smart contracts and economic incentives rather than bank reserves. Created by MakerDAO, Dai pioneered the concept of collateralized debt positions (CDPs) and demonstrated that decentralized money could be stable.
Unlike USDC or USDT, which hold dollar reserves, Dai is generated when users lock cryptocurrency as collateral. This over-collateralized model ensures solvency without trusting custodians, making Dai a cornerstone of the DeFi ecosystem and a proof point for decentralized finance.
How Dai Works
Collateralized Debt Positions
Vault mechanics:
- Deposit collateral (ETH, etc.)
- Generate Dai against it
- Maintain collateralization ratio
- Pay stability fee (interest)
Over-Collateralization
Safety buffer:
- Typically 150%+ collateral required
- Liquidation if ratio falls
- Keepers maintain health
- Protocol captures value
Stability Mechanisms
Peg maintenance:
- Dai Savings Rate (DSR)
- Stability fees adjustment
- Liquidations
- PSM (Peg Stability Module)
Technical Specifications
| Metric | Value |
|---|---|
| Token Standard | ERC-20 |
| Peg Target | $1.00 USD |
| Collateral Types | 20+ assets |
| Minimum Ratio | Varies by asset |
| Governance | MKR token |
Dai vs. Other Stablecoins
Comparison
| Feature | Dai | USDC | USDT |
|---|---|---|---|
| Backing | Crypto | USD reserves | Mixed reserves |
| Custody | Smart contracts | Circle | Tether |
| Transparency | On-chain | Audited | Limited |
| Censorship | Resistant | Possible | Possible |
Dai’s Trade-offs
Strengths and weaknesses:
- More decentralized but less capital efficient
- Transparent but complex
- Censorship-resistant but liquidation risk
- Permissionless but harder to scale
The MakerDAO System
Governance
Decision making:
- MKR token governance voting
- Parameter adjustments
- Collateral onboarding
- Protocol upgrades
Risk Management
System safety:
- Collateral risk assessment
- Debt ceiling limits
- Oracle security
- Emergency shutdown
Revenue Model
Protocol economics:
- Stability fees (borrowing interest)
- Liquidation penalties
- Protocol surplus
- MKR buyback/burn
Evolution of Dai
Single-Collateral Dai (Sai)
Original version:
- ETH-only collateral
- Simpler mechanism
- Launched 2017
- Migrated to Multi-Collateral
Multi-Collateral Dai
Current system:
- Multiple collateral types
- More complex governance
- Greater flexibility
- Increased risk management
Real-World Assets
Expansion:
- Tokenized treasuries
- Real estate backing
- Traditional finance assets
- Controversy over centralization
Dai Savings Rate (DSR)
Yield Generation
Earning on Dai:
- Deposit Dai in DSR contract
- Earn interest from protocol
- Variable rate (governance set)
- Key monetary policy tool
sDAI Token
Wrapped version:
- Yield-bearing Dai
- Composable in DeFi
- Automatic compounding
- ERC-4626 vault standard
Peg Stability Module (PSM)
Direct Conversion
Arbitrage mechanism:
- Swap USDC/Dai 1:1
- Maintains tight peg
- Reduces volatility
- Trade-off: centralization
Centralization Concerns
USDC exposure:
- Significant PSM usage
- Circle dependency
- Regulatory transmission
- Ongoing debates
Maker’s Endgame
Strategic Evolution
Long-term plan:
- SubDAO structure
- Multiple stablecoins
- Governance reform
- Sustainable growth
NewStable and PureDai
Proposed split:
- RWA-backed stablecoin
- Pure crypto-only version
- Different risk profiles
- User choice
Challenges and Criticism
Centralization Creep
Growing concerns:
- RWA collateral dependency
- USDC exposure via PSM
- Governance concentration
- Regulatory pressure
Complexity
System opacity:
- Many parameters
- Difficult to understand
- Governance burden
- Risk assessment challenges
Competition
Stablecoin market:
- Centralized options simpler
- New decentralized attempts
- Yield competition
- Market share pressure
Recent Developments
Sky Protocol Rebrand
Major changes:
- MakerDAO becoming Sky
- USDS stablecoin launch
- SKY governance token
- Ecosystem restructuring
RWA Growth
Real-world asset expansion:
- Treasury bill backing
- Institutional partnerships
- Revenue diversification
- Controversy over direction
Future Roadmap
Development priorities:
- Endgame Execution: SubDAO implementation
- Decentralization: Reduce centralized collateral
- Scaling: L2 deployment
- Products: New stablecoin variants
- Governance: Structural reforms
Conclusion
Dai proved that decentralized stablecoins are possible, maintaining its peg through multiple market cycles and crises. The MakerDAO system inspired countless DeFi innovations and remains one of the most battle-tested protocols in crypto.
However, the tension between decentralization ideals and practical scaling pressures continues. The increasing reliance on real-world assets and centralized stablecoins in the PSM challenges Dai’s original ethos, even as they improve capital efficiency.
For users seeking a stablecoin with transparent, on-chain collateral and censorship resistance, Dai remains the primary option—though understanding its complexity and trade-offs is essential for informed usage.