Circle Agent Stack gives agents a way to do more than generate a market summary. In this tutorial, build a research-first trading thesis agent that can use an Agent Wallet, discover Arrays market data, pay with USDC, stay within a budget, and return a thesis with receipts. No trade execution. Just paid data, reasoning, and spend tracking in one workflow. https://www.circle.com/blog/build-a-trading-thesis-agent-with-arrays-and-circle-agent-stack(Circle)