What Is a Stablecoin? A Plain-English Definition
A stablecoin is a cryptocurrency designed to maintain a fixed value, typically pegged one-to-one to a fiat currency like the US dollar. Unlike Bitcoin or Ethereum, which fluctuate in price, a stablecoin aims to stay at or near the peg at all times.
How the Peg Works
Most major stablecoins use a reserve-backed model. The issuer holds traditional currency or short-term Treasury securities in a bank account or custody arrangement, matching the number of stablecoins in circulation. For example, Circle - the company behind USDC - publishes monthly attestations showing it holds one dollar (or equivalent) in reserve for every USDC token issued. If you redeem 100 USDC through Circle, the company destroys those tokens and returns 100 US dollars to you.
This reserve mechanism is what keeps the peg stable. Market forces arbitrage small deviations: if USDC trades at 1.01 dollars on an exchange, arbitrageurs can buy dollars, mint new USDC at the one-to-one rate, and sell at 1.01, pocketing the difference and pushing the price back toward parity.
Why 8lends Uses a Stablecoin
8lends settles every loan in USDC on the Base blockchain. Using a stablecoin removes currency-exchange risk for lenders who want dollar-denominated exposure without holding actual fiat in a bank account. The 18-25 percent annual return advertised by 8lends is expressed in USDC terms, not in a volatile cryptocurrency. Lenders receive interest payments in the same stablecoin they deposited, and can redeem USDC for fiat through an exchange or directly with Circle if they meet the minimum redemption threshold.
Important distinction. "Stable" refers to the token's price peg, not to the safety of a lending platform. A stablecoin can hold its dollar peg perfectly while the platform using it faces credit risk, liquidity problems or regulatory gaps. Capital is always at risk when you lend, regardless of the currency or token used.
Common Stablecoins
USDC (USD Coin, issued by Circle) and USDT (Tether, issued by Tether Ltd) are the two largest by market capitalization. Both claim full reserve backing, though their attestation and audit practices differ. 8lends uses USDC exclusively. Other stablecoins include BUSD (Binance, discontinued in 2023), DAI (MakerDAO, algorithmically collateralized), and EURC (Circle's euro-pegged token).
Read our full USDC explainer for a deeper look at how Circle's stablecoin works and why 8lends chose it over alternatives.