Circle, the issuer of the USDC stablecoin, has unveiled a significant expansion of its cross-chain interoperability stack, aiming to enable near-instant settlement and unified liquidity across multiple blockchains. The company introduced new capabilities, including CCTP Fast Transfer, which allows cross-chain USDC transfers to settle in seconds without waiting for full source chain confirmation, and Circle Gateway, which provides a unified USDC balance across 12 supported networks with access to liquidity in under 500 milliseconds. Gateway currently processes around $400 million in monthly volume.
The interoperability roadmap extends beyond USDC to support other assets like EURC, USYC, and cirBTC. Circle also introduced Arc, a Layer-1 blockchain designed as a coordination layer for issuance and liquidity routing, offering sub-second settlement. To simplify complex cross-chain workflows, the company launched orchestration tools including forwarding services, Bridge Kit, Deposit Kit, Circle Fee Service, and Circle Workflows.
Concurrently, Circle is facing scrutiny over its growing dominance in Europe's stablecoin market, particularly through its euro-denominated stablecoin, EURC. DeFi analyst Ignas criticized the development, labeling it "a European fail" and suggesting Circle's market share was gained less through product superiority and more through strategic lobbying for favorable regulations like the EU's Markets in Crypto-Assets (MiCA) framework. He noted that when MiCA came into law, Circle was the only top-10 stablecoin issuer ready with a license, having secured a French Electronic Money Institution (EMI) license.
Ignas highlighted that EURC's market cap is approximately $460 million, a fraction of USDC's $78+ billion, but Circle's share of the European market grew from 17% to 60% in 12 months. He also accused Circle of employing a similar lobbying strategy in the UK. The news comes as Circle faces security-related criticism following the $285 million hack of Solana's Drift Protocol, where attackers moved $71 million in USDC and later bridged about $232 million more from Solana to Ethereum using Circle's Cross-Chain Transfer Protocol (CCTP). On-chain investigator ZachXBT questioned Circle's response time and ability to freeze addresses.
