Circle is a financial technology company offering a full-stack platform for digital assets and onchain finance. Its products include USDC and EURC stablecoins, USYC tokenized funds, Circle Mint, StableFX, Circle Payments Network, digital asset accounts, Arc blockchain infrastructure, and developer services such as wallets, smart contracts, cross-chain transfers, Gateway, Paymaster, and Agent Stack. The platform supports global payments, currency access, institutional trading, and programmable financial applications.