Yicong Xie@yccccccc886332

`Arc Signal Desk is a hackathon project built for the Agentic Economy on Arc theme. We wanted to show that agentic applications become much more powerful when every micro-action can be priced, paid for, and audited without gas overhead destroying the margin. Our product turns a research workflow into a sequence of paid actions: a user or upstream agent submits a news article, text input, or preset signal, and the system runs summary, entity extraction, and relation extraction as individually priced steps. Those outputs are then assembled into a live decision desk and a graph view so the user can inspect the result, the evidence behind it, and the payment trail that produced it. Under the hood, Arc Signal Desk combines Arc settlement, USDC-denominated pricing, and Circle nanopayment-style flows to support economically viable sub-cent transactions. We also built multiple demo paths so the project is not just a concept mockup: local mock mode for reliable demos, a real seller-side payment-gated API flow, a gateway buyer runner for true paid calls, and an Arc UsageReceipt contract that maps successful actions to on-chain evidence. This matters because the core claim of our project is not only that AI tools can be monetized, but that autonomous agents and human users can pay for exactly the next unit of useful work. That creates a more scalable economic model for APIs, machine-to-machine tools, and agentic workflows than subscriptions or gas-heavy per-call settlement.`

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!