Octavian Ciulei@Ciulik

Agent Marketplace is a proof-of-concept for the upcoming Agentic Economy. We address the primary barrier to autonomous AI commerce: transaction costs. On legacy networks like Ethereum, a micro-payment of $0.01 can cost $2.50 in gas, making it economically impossible for agents to trade small data units. Using Google Gemini 1.5/2.0, we created a negotiation layer where Buyer and Seller agents use strategic prompts to reach a price consensus. Once an "AGREED" signal is triggered, the system invokes Circle's Programmable Wallets on the Arc blockchain. We demonstrate a "Nanopayment Storm"—executing 100 on-chain transactions in seconds. The result is a staggering 99.996% reduction in costs ($250 vs $0.01 for 100 tx), proving that Circle and Arc are the essential infrastructure for AI-driven markets, pay-per-API-call models, and real-time data monetization.

In this hybrid hackathon powered by Arc and Circle, developers will build the next generation of Agentic economic applications using Circle’s Nanopayments infrastructure with settlement on Arc in USDC. For the first time, high-frequency, usage-based transactions between users, APIs, and AI agents can operate without gas overhead eroding margin. Arc provides stablecoin-native settlement with predictable, dollar-denominated USDC fees and deterministic, sub-second finality — enabling real-time coordination and economically viable per-action pricing at scale. 📅 April 20 – 26, 2026 • Apr 20 – 25 (Online): Submit projects by Apr 25. • Apr 25 (On-site Build – SF, CA): Teams refine projects. • Apr 26 (On-site Demos & Awards – SF, CA): Live pitches & winners announced. Get guidance from Arc and Circle experts through on-site support. 📍 On-site Venue (April 25-26): MindsDB SF AI Collective 3154 17th St, San Francisco, California, USA 🤝 Go solo or team up, it's your flow. 🏆 Compete for a $15,000+ Prize Pool. 📍 Please note: If approved for the on-site experience, you’ll also have the opportunity to showcase your project live. Travel and accommodation will not be covered. 🧑🏻‍💻 Secure your spot now – sign up before the Kick-Off Stream!