Autonomous Payments SDK using Circle and Arc

Agentic Commerce on Arc is a TypeScript SDK that demonstrates how AI agents can autonomously make financial decisions and settle payments on-chain using Circle’s infrastructure and the Arc blockchain. The project implements an end-to-end agentic commerce flow: User Prompt → AI Decision → Conditional USDC Payment → On-chain Settlement At its core, the SDK orchestrates three systems: Google Gemini for structured AI decision-making Circle for USDC and developer-controlled wallet operations Arc as an EVM-compatible Layer-1 where USDC is used for settlement The agent evaluates a prompt using Gemini, produces a strictly validated JSON decision, and conditionally executes a USDC transaction either through Circle’s custodial wallets or via a direct on-chain transfer on Arc. This demonstrates how autonomous agents can move from reasoning to real economic action without manual intervention. The system is designed with clean abstractions, strict runtime validation, and dual payment paths to support both custodial and self-custodial use cases. All integrations are real, end-to-end, and verifiable on-chain.