What Is USDC (USDC)? How It Works, Use Cases and Risks

USDC is a dollar stablecoin issued by Circle: a crypto token designed to always be worth one US dollar, backed by reserves held in cash and short-term US government securities, and redeemable one-for-one for dollars through Circle. It lets people move dollar value on public blockchains quickly and at any hour.

USDC is one of the most widely used stablecoins in crypto, alongside Tether (USDT). It is popular for trading, payments and decentralized finance (DeFi) because it combines the stability of the dollar with the speed and programmability of a blockchain. But it is still a token issued by a private company, with risks worth understanding.

Origin and Who Is Behind USDC

USDC launched in 2018 through Centre, a consortium co-founded by Circle and the exchange Coinbase. In 2023, Circle took over full governance of USDC, and it is now responsible for issuing and redeeming the token and managing its reserves. If World Liberty Financial is new to you, start with what World Liberty Financial (WLFI) is and how it works.

Circle is a US-based financial technology company. Because a single company issues USDC, the token's reliability depends heavily on Circle's management of its reserves, its banking partners and its compliance with the law. Our article USDC vs PayPal USD expands on this point.

How USDC Works

Minting and redemption

The process is straightforward:

1. 1An approved customer, usually a business or exchange, sends US dollars to Circle.
2. 2Circle mints the same amount of USDC and sends it to the customer's blockchain address.
3. 3When a customer returns USDC, Circle burns (destroys) the tokens and pays out dollars.

This mint-and-burn loop keeps supply tied to reserves. Most individuals don't redeem directly with Circle; they buy and sell USDC on exchanges, where arbitrage between the market price and the redemption value keeps USDC close to one dollar.

The reserves

Circle states that USDC reserves are held in cash at banks and in short-dated US Treasury instruments, a large part through a government money market fund. Circle publishes regular reserve reports that are examined by an independent accounting firm. These are attestations rather than full audits, which our guide to proof of reserves explains in more detail. Our Tether (USDT) explainer covers the project's basics, use cases and risks.

Multiple blockchains

USDC exists natively on many networks, including Ethereum, Solana and several layer-2 networks. Circle also offers a Cross-Chain Transfer Protocol (CCTP), which moves USDC between supported chains by burning it on one and minting it on the other, instead of relying on wrapped versions.

Some networks also have older bridged USDC, created by third-party bridges and often labeled USDC.e. Bridged and native USDC are not the same token, and they can carry different risks.

What USDC Is Used For

Supply Design

USDC has no fixed maximum supply. New tokens are created when dollars are deposited and destroyed when they are redeemed, so supply expands and contracts with demand. This is very different from a capped asset like Bitcoin: USDC is not designed to rise in value, only to hold one dollar. You can see the current supply and price on the live USDC price page.

Risks and Criticisms

Banking and reserve risk

In March 2023, Silicon Valley Bank failed while holding part of USDC's cash reserves. USDC traded well below one dollar for a short period until it became clear the deposits would be accessible, after which it returned to its peg. The episode showed that a stablecoin is only as safe as the institutions holding its reserves.

Centralized control

Circle can freeze addresses and is subject to US law. That supports compliance but means your USDC can be blocked, and the token depends on Circle continuing to operate.

Regulatory risk

Stablecoin rules are developing in many countries and can change which services offer USDC or how reserves must be held. Our explainer on stablecoin regulation covers the main approaches.

Platform risk

Holding USDC on an exchange or lending platform adds that platform's risks on top of Circle's. Yields offered on USDC come from the platform, not from Circle.

Smart contract and bridge risk

Bridged versions rely on the security of the bridge that created them. If a bridge is hacked, its wrapped tokens can lose their backing. See also: Crypto Payments for Businesses.

For a direct comparison with Tether, see USDT vs USDC.

How to Verify Official USDC and Avoid Fakes

Anyone can create a token named "USDC." Fake versions are common in airdrop scams and on decentralized exchanges.

• Get the official contract address for your network from Circle's own documentation or a reputable data site, and compare every character. Our guide to verifying a token's official contract address shows how.
• Check whether you are holding native USDC or a bridged version, especially on layer-2 networks.
• Make sure you send USDC on a network that the receiving wallet or exchange supports.
• Ignore USDC you didn't expect to receive, especially if it points you to a website.

Bottom line

USDC is a dollar-backed stablecoin issued by Circle that makes it easy to hold and move dollar value on blockchains. Its reserves and reporting are a strength, but it remains a centrally controlled token that depends on banks, regulation and one company. Verify the contract on your network and understand where you are holding it.