If you swap or hold funds on Base, chances are most of your activity touches a stablecoin at some point. USDC gets most of the attention, and for good reason, but it is not the only stablecoin that shows up on the network. Knowing what backs each one, and how to tell the real thing from a copy, matters more than it might seem.
Why "stablecoin" does not mean one thing
A stablecoin is a token designed to track the value of another asset, almost always the US dollar, so its price stays close to $1 instead of moving with the broader market. But the word covers very different designs underneath. Some stablecoins are issued by a company that holds real dollars or short term government debt in reserve for every token in circulation. Others are backed by a basket of crypto collateral locked in a smart contract, with no company holding your money at all. The mechanism matters because it changes who you are actually trusting when you hold the token.
USDC on Base
USDC is issued by Circle, a regulated financial company, and each token is meant to be backed one for one by cash and short term US Treasury holdings. Base has native USDC, meaning Circle mints and redeems the token directly on Base rather than it arriving as a wrapped copy from another chain. That matters because native USDC can move between chains through Circle's own Cross Chain Transfer Protocol, which burns the token on one chain and mints a fresh native token on the other, instead of locking it in a bridge contract. Our guide on native USDC transfers and CCTP goes deeper into how that works, and what USDC on Base actually is covers the token itself.
An older bridged version of USDC, sometimes labeled USDbC, also exists on Base from before Circle brought native USDC to the network. Circle's own guidance points users and integrators toward native USDC rather than the bridged legacy version, so if your wallet or an app shows you a choice, native USDC is generally the one to prefer.
EURC on Base
EURC is Circle's euro backed counterpart to USDC, reserved in euros held at regulated institutions rather than dollars. Circle brought EURC to Base as a native token, following its earlier availability on Ethereum and other chains. For anyone transacting in euros or wanting exposure to a euro denominated stablecoin without leaving Base, EURC fills that role. Keep in mind that a euro stablecoin still moves with the EUR to USD exchange rate if you are thinking in dollar terms, so "stable" here means stable against the euro, not against every currency at once.
DAI and other overcollateralized stablecoins
DAI, issued by the Sky protocol (formerly MakerDAO), works differently from USDC or EURC. Instead of a company holding reserves, DAI is generated by users locking crypto collateral into smart contracts, with the system designed to keep more collateral value locked than DAI in circulation. DAI is available on Base, generally arriving through bridging from Ethereum rather than being minted natively there. The tradeoff with a decentralized stablecoin like DAI is that you are trusting a set of smart contracts and their collateral management instead of a single issuer, which is a different risk profile, not automatically a safer or riskier one.
What about USDT
USDT, issued by Tether, is the largest stablecoin by market value across crypto as a whole, and it circulates on many chains. As of this writing, Tether has not announced an official, company issued deployment of USDT on Base the way Circle has done with USDC and EURC. Any token labeled USDT that you encounter on Base is most likely a bridged or wrapped version created by a third party bridge, not a token minted directly by Tether. That is not automatically unsafe, but it is an extra layer of trust: you are relying on whichever bridge or protocol created that wrapped version, on top of trusting Tether's reserves for the underlying asset on its home chain. If a specific USDT balance matters to you on Base, it is worth checking where that particular token actually came from before assuming it behaves like USDT anywhere else.
Checking what you actually hold
The token symbol shown in your wallet is just a label, and nothing stops anyone from naming a worthless token "USDC" or "EURC" to trick people. Before trusting a stablecoin balance, especially one you did not swap into yourself, verify the contract address against the issuer's official documentation or a trusted source like Basescan's verified token list, rather than trusting the name alone. Our guide on spotting scam tokens on Base and researching a token before you swap it both cover this in more detail, and the same caution applies even to tokens that look like well known stablecoins.
A short practical summary
For most everyday use on Base, native USDC is the default choice: widely supported, natively issued, and easy to move across chains through CCTP. EURC is the natural pick if you are working in euros. DAI suits people who specifically want a decentralized, overcollateralized design instead of a company issued token. And for anything labeled USDT on Base, slow down and confirm the source before treating it as equivalent to USDT elsewhere. None of this requires a deep technical background, just a habit of checking the contract behind the label before you rely on the balance.