Dai (DAI): swapping the decentralized stablecoin

DAI aims to stay close to one dollar, like other stablecoins, but the way it holds that peg is distinct. Instead of a company issuing tokens backed by dollars in a bank, DAI is minted against crypto collateral locked in a decentralized protocol and kept stable by on-chain mechanisms.

For a swapper, the practical upshot is that DAI is a decentralized alternative to custodial stablecoins like USDC and USDT. It behaves like a dollar stablecoin day to day, with a different trust model behind it.

DAI is an ERC-20 that lives on Ethereum and other networks, so swapping it into or out of USDC, USDT, ETH, or other assets is a same-chain swap where DAI is available, or a cross-chain route otherwise. Multiswap compares routes and ranks them by net received.

Swapping between DAI and another stablecoin is a common move when you want to change your trust model or reach a service that prefers one over another. The net-of-fee comparison keeps the small costs of moving between near-dollar assets visible.

DAI comes into existence when users lock up crypto collateral in a decentralized protocol and mint DAI against it. Because the collateral is itself volatile, the system requires more value locked than the DAI issued, an overcollateralized design meant to keep the token backed even when markets move. When someone repays their DAI, the collateral is released and that DAI is removed from supply.

The peg is maintained by on-chain incentives and governance rather than a company promising redemption at a bank. That is the substance behind calling DAI decentralized: no single issuer controls minting, and the rules are enforced by contracts and token-holder governance. It also means DAI's risks are protocol and collateral risks, a different shape from the issuer and reserve risks that reserve-backed stablecoins carry.

All three aim for a dollar, but the difference is issuance. USDC and USDT are issued by companies against reserves, while DAI is generated against crypto collateral by a protocol. That makes DAI attractive to people who prefer a decentralized model, and it's why some swap into DAI specifically.

None of them is guaranteed to hold the peg perfectly, and each carries its own risks. Choosing between them is about which trust model and which network suit what you're doing.