Aymen Gnaba@makabeez199

AlphaDrip is an x402-monetized trading signal API where every call is a real on-chain USDC settlement on Arc Testnet. No subscriptions, no middlemen, no batching abstractions — just direct per-call payment at $0.003 USDC, settled in sub-second time via EIP-3009 transferWithAuthorization on Arc's USDC contract. The cascade engine connects to Hyperliquid's public WebSocket trade feed, evaluates BTC trade volume against a rolling baseline, and fires liquidation cascade signals when volume spikes >2.5× with directional bias >70%. Each signal is exposed via a paywalled HTTP endpoint that returns 402 Payment Required, advertising Arc Testnet USDC as the accepted asset. Consumers sign an EIP-3009 authorization off-chain (no Gateway deposit required), the producer relays it on-chain as a real USDC transfer, the signal payload is returned with the Arc transaction hash. Every paid call is independently verifiable on the Arc Block Explorer. A recorded 326-second demo session produced 163 paid on-chain settlements, 263 cascade signals fired, $0.483 USDC settled by the consumer, $0.489 USDC earned by the producer (the difference being the producer's gas reimbursement of ~$0.0019 per tx). Net producer margin after gas: 36% — economically viable per-call pricing that's impossible on any other L1. The original architecture targeted Circle Gateway's batched-x402 facilitator. We discovered that endpoint returns "unsupported_network" for Arc Testnet (eip155:5042002) — a real bug we documented and submitted as Circle product feedback. Per the Arc team's explicit Discord guidance ("you can build x402-style logic on Arc, you'll need to implement the logic yourself"), we pivoted to direct EIP-3009 settlement, which works perfectly because Arc's USDC at 0x3600... is a fully EIP-3009-compliant Circle FiatTokenV2. Live demo: https://alphadrip.baserep.xyz Source: https://github.com/Makabeez/alphadrip

Grab your ideas, spin up compute, and start building what’s next! Start with $100 in AMD Developer Cloud credits and begin building right away. Get access to hands-on tutorials, workshops, and curated learning resources to help you build faster and go further. To unlock credits and join the hackathon, sign up for the AMD AI Developer Program. 🤝 Go solo or team up — ship something real. 💰 $21,500+ total prize pool & 1 × AMD Radeon™ AI PRO R9700 GPU up for grabs. 📍 On-site Venue (May 9-10): MindsDB SF AI Collective 3154 17th St, San Francisco, California, USA 📍On-site participation is by invitation only. Travel and accommodation expenses will not be covered. 🧑‍💻 Developers, builders, and innovators - bring your boldest ideas and let’s turn them into real AI systems on AMD.

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!