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Constellar
Constellar is a multi-agent oracle network built for verifiable judgment in the agentic economy. As AI agents begin to participate in economic workflows, judgment itself needs infrastructure: something accurate, payable, and onchain. Constellar coordinates specialized AI agents as oracle nodes. Different agents retrieve evidence, interpret resolution criteria, challenge ambiguity, and produce a final structured outcome. Instead of relying on one opaque oracle answer, Constellar creates a judgment pipeline that is modular, auditable, and easier to verify. The system can be used across many scenarios, including e-commerce disputes, governance execution, service or delivery arbitration, and prediction market settlement. For this demo, we focus on the prediction market use case through an integration with PolyPop (X@_PolyPOP), an Arc-native prediction market that turns X claims into live bets, while Constellar produces the settlement outcome. Gemini is the intelligence layer behind Constellar. It helps improve factual accuracy, reduce hallucinations through grounded search, access real-time web evidence, and return citations for verification. Arc and Circle Nanopayments make this model economically viable: AI agents can operate as oracle nodes through small paid tasks such as evidence retrieval, verification, API calls, and decision steps, while final outcomes settle in USDC on Arc and remain fully onchain, traceable, and verifiable. In short, Constellar turns judgment itself into programmable infrastructure.
26 Apr 2026
ArcPay
ArcPay is an AI-assisted on-chain subscription and payment manager built on Arc, designed to manage stablecoin payments across multiple chains and real-world use cases. Users increasingly use USDC to pay for both crypto-native services and real-world subscriptions, such as rent, internet, SaaS tools, and digital content. These payments are often spread across different wallets, chains, and platforms, making them difficult to track and manage. ArcPay uses Arc as the settlement and coordination layer. Users deposit USDC to Arc, where subscriptions are defined on-chain with a payment amount, interval, and destination. This applies to crypto services (such as DeFi protocols or on-chain tools) as well as real-world style subscriptions like monthly rent, cloud services, and internet plans. Recurring payments are executed via x402 on Arc. For subscriptions that require settlement on other blockchains, ArcPay integrates Circle’s Cross-Chain Transfer Protocol (CCTP) to move USDC from Arc to the target chain before payment execution. The web dashboard provides a unified view of balances, active subscriptions, and payment history across chains and real-world subscriptions. An AI assistant helps users check their subscriptions, upcoming payments, and whether their balance is sufficient for the next billing cycle.
24 Jan 2026
