Soliris Arc is the reference agentic-economy stack on Arc L1 (chain 1516, Circle's USDC-native EVM chain). Trading agents purchase real-time signals from a Signal Server for $0.001 USDC per request, paid via Circle Nanopayments and verified on-chain through the Circle Wallets API. Each signal purchase autonomously triggers a sub-payment from the Signal Server to an upstream data-feed agent — a 3-layer machine-to-machine payment chain that runs every 60 seconds with zero human intervention. Live state (Arc testnet): - 500+ Arc transactions settled - 250 signal purchases + 250 data-feed sub-payments - Real Circle Nanopayments
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