
Circle
Circle issues USDC and EURC, stablecoins used for payments, settlement, trading, and onchain finance.

What is Circle?
Circle is the issuer of USDC and EURC, stablecoins used by developers, fintechs, exchanges, wallets, and institutions for digital dollar and euro movement. Circle supports payments, treasury, trading, and settlement workflows across major chains, with developer APIs and business accounts for teams building stablecoin-powered products.
Web3 dapps and developer tools related to Circle
Discover blockchain applications that are frequently used with Circle.
Developer resources from Alchemy

What is the stablecoin sandwich?
Learn how the stablecoin sandwich payment model works and what it means for cross-border payments.

How to build a stablecoin in 2026
A technical guide covering everything you need to know to build your own stablecoin.

How to scale to 30,000 requests per second. The story behind Usual's seamless airdrop
Usual aims to put ownership back in the hands of its users, by ensuring that value flows back to the community rather than concentrating at the top, paving the way for a fair and community-driven future for stablecoins and token-based finance.
Circle alternatives
Explore web3 competitors and apps like Circle.
App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

