Developers are ecstatic! Six major mainstream frameworks are fully compatible—everything from OpenAI to Google ADK is supported—but remember, it’s still the Arc testnet for now, so don’t rush to go all-in on the mainnet.

Circle said it has open-sourced the Circle Agent Stack starter kit. Developers can integrate wallets, USDC payments, and on-chain operations for AI Agents through six frameworks: the OpenAI Agents SDK, the Claude Agent SDK, LangChain Deep Agents, Mastra, the Vercel AI SDK, and the Google ADK. Circle’s official GitHub repository shows that the relevant kits integrate an agent wallet, nano-payments, and the Circle Agent Marketplace. The examples are for demonstration and educational purposes only; they are planned for testing on the Arc testnet and are not yet ready for production environments.