Jarvis — Voice-Activated Agentic Economy on Arc

Jarvis is a fully autonomous AI agent that participates in the agentic economy on Arc L1. Using Gemini 2.0 Flash function calling, Jarvis decides when to pay other AI agents for data and services — then executes real USDC nanopayments onchain through Circle Wallets, with every transaction settling on Arc in ~2 seconds. The core insight: agent-to-agent commerce requires sub-cent transactions. On Ethereum mainnet, gas costs ~$3 per transaction — 3000x the value of a $0.001 micropayment, making the business model impossible. On Arc with Circle Nanopayments, gas is ~$0.0001, giving a 90% net margin. This is the only stack where agentic commerce actually works economically. The demo runs 55 real onchain confirmed transactions at $0.001 USDC each, across 3 specialized seller agents (news, market data, AI compute). Jarvis acts as the buyer agent — voice-triggered, Gemini-reasoned, Circle-settled. A Vyper smart contract (payment_router.vy) handles batch payments on Arc. The full voice loop runs: Whisper STT → Gemini reasoning → Circle transfer → Arc confirmation → Kokoro TTS response. No human in the loop at payment time. All 55 transactions are verifiable in Circle Console with real TX hashes.