Circle has launched native USDC and the Cross-Chain Transfer Protocol (CCTP) on OKX's X Layer, bringing regulated stablecoin infrastructure to the Ethereum Virtual Machine (EVM)-compatible Layer-2 blockchain.

The integration provides developers, businesses, and more than 120 million OKX users with access to USDC while enabling secure cross-chain transfers without reliance on third-party bridges. The launch also strengthens X Layer's role in payments, decentralized finance (DeFi), AI-driven applications, and institutional blockchain solutions by supplying trusted dollar-denominated liquidity.

Circle Brings Native USDC and CCTP to OKX X Layer

Prior to the launch, X Layer supported only bridged USDC versions, including USDC.e and USDC_Bridged, which originated from Ethereum but were not issued by Circle. These tokens enabled stablecoin transactions but lacked native features such as direct redemption and compatibility with the company's infrastructure. Bridged stablecoins have also historically been a significant attack vector in DeFi, with cross-chain bridge exploits accounting for some of the largest protocol losses on record.

X Layer now supports native USDC, offering fully reserved assets redeemable on a 1:1 basis for U.S. dollars. Circle has also deployed its Cross-Chain Transfer Protocol (CCTP) on the network, enabling native USDC transfers across more than 25 supported blockchains. Unlike conventional bridges, CCTP burns tokens on the source chain and mints an equivalent amount of USDC on the destination chain, eliminating the locked-asset pools that have frequently been targeted by attackers.

OKX X Layer, launched in 2024 as the exchange's proprietary Layer-2 scaling network, is designed to connect OKX's centralized trading user base with onchain applications. The addition of native USDC aligns with a broader industry pattern in which major exchanges are deepening stablecoin liquidity on their own L2 networks, as seen with Coinbase's Base and other exchange-affiliated chains.

Circle Expands Global Stablecoin Payment Adoption

Existing bridged USDC assets will continue to function and remain transparently identifiable as X Layer liquidity gradually transitions to native USDC. For OKX users, all deposit and withdrawal operations on X Layer will be automatically settled in native USDC.

Circle is continuing to expand the global reach of its stablecoins. Through Circle Mint France, the company has launched its Stablecoin Payouts API, enabling fintechs, payment companies, and organizations to execute automated USDC and EURC payouts across more than 180 countries. The service includes compliance features such as mutual TLS and Travel Rule support to meet MiCA regulatory requirements.

MiCA, the European Union's comprehensive crypto-asset regulatory framework that began taking effect in 2024, imposes stringent reserve, disclosure, and operational standards on stablecoin issuers. Circle has positioned itself as a MiCA-compliant issuer under its French electronic money institution license, giving it a first-mover advantage among major U.S.-headquartered stablecoin operators in the EU market.

What Happens Next

Circle and OKX will promote the use of native USDC on X Layer, encouraging applications to migrate liquidity away from bridged USDC. As more DeFi protocols, payment systems, and enterprises integrate native USDC and CCTP, X Layer could attract additional liquidity and institutional participation.

The launch underscores the growing role of regulated stablecoins as foundational infrastructure for the financial sector, bridging traditional payment rails with blockchain-based finance and AI-driven applications.