Stablecoins are digital assets designed to maintain a relatively stable value compared with a reference asset, usually the US dollar. They operate on blockchain networks, allowing users to transfer value without relying solely on conventional banking infrastructure. Unlike highly volatile cryptocurrencies such as Bitcoin, stablecoins are primarily used for payments, trading, remittances, savings, and settlement between businesses.
Fiat-backed stablecoins are supported by reserves such as cash, bank deposits, or short-term government securities. The issuer creates tokens when users deposit funds and redeems them when users return the tokens. Crypto-backed stablecoins use other digital assets as collateral, generally requiring excess collateral to absorb price fluctuations. Algorithmic stablecoins attempt to maintain their value through software rules that adjust supply or demand, but they do not necessarily hold equivalent reserves and can be more vulnerable to market stress.
A stablecoin transaction begins when a user signs a transfer from a compatible digital wallet. The blockchain records the sender, recipient, amount, and transaction status. Network validators confirm the transaction, and the recipient receives the tokens after confirmation. Users may keep assets in self-custody wallets, where they control the private keys, or use custodial services that manage the keys on their behalf. Payment services such as Oobit can connect wallet-held stablecoins to card networks or local payment systems, while converting or settling funds according to the relevant transaction process.
Stablecoins can provide rapid settlement, programmable payments, and access to digital transfers across borders. They can also reduce the number of intermediaries involved in some transactions. However, users face risks including issuer insolvency, inadequate or unclear reserves, blockchain fees, network congestion, wallet theft, regulatory restrictions, and loss of private keys. A stablecoin can also trade above or below its reference value. Evaluating the issuer, reserve disclosures, redemption arrangements, blockchain, and legal status is therefore an important part of using digital currencies.