Developer compares AWS and Sui blockchain approaches to autonomous agent spending controls

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A developer analyzed how AWS and the Sui blockchain handle authorization for autonomous AI agents that manage money. The key challenge is preventing agents from making unauthorized payments due to errors or manipulation. AWS AgentCore Payments keeps spending rules and wallet keys off-chain in a trusted service layer that approves or denies transactions. In contrast, Sui encodes spending rules directly on-chain within Move smart contracts, where possession of a capability object authorizes spending. Both approaches were tested in real environments using testnet funds to demonstrate their functionality.

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