Circle has unveiled two major initiatives aimed at expanding the utility of USDC: an AI agent discovery layer for automated payments and the launch of native USDC alongside its Cross-Chain Transfer Protocol (CCTP) on OKX’s X Layer. These moves underscore Circle’s push to integrate its regulated stablecoin into the evolving infrastructure of machine-driven finance and cross-chain DeFi.
The AI Agent Discovery Layer introduces a curated marketplace where AI agents can discover and pay for services using USDC and the x402 protocol. CEO Jeremy Allaire stated that the new protocol enables agents to seamlessly access consumable services, building on a growing ecosystem with over 900 endpoints. Developers can now query Circle’s Discovery API—without an API key or authentication—to tap into the Agent Marketplace catalog, programmatically integrating payment flows for AI-driven subscriptions, data, and compute resources.
Separately, native USDC and CCTP are now live on X Layer, an Ethereum-compatible Layer 2 network developed by OKX. This integration replaces bridged USDC with Circle-issued tokens directly on the chain, removing reliance on wrapped assets and third-party liquidity pools. CCTP allows USDC to move between 26 supported blockchains via a burn-and-mint process, ensuring native asset consistency. Qualified businesses can also issue and redeem USDC through Circle Mint on X Layer, subject to compliance requirements.
The rollout positions X Layer for DeFi, payments, tokenized real-world assets, and AI applications, while the x402 ecosystem enables automated micropayments between agents and services. Circle’s expansion comes as USDC circulation hit $73.3 billion in Q2, with on-chain volume surging 151% year over year to $14.8 trillion. The company is also preparing the public mainnet of its Arc blockchain and has secured key regulatory approvals, including a national trust bank charter from the OCC.
