SignalArc

@wahyu241205·Desi Permatasari·added 2026-07-19

SignalArc is prediction-market infrastructure built API-first for Arc. A Go backend on go-chi/chi/v5 organizes market creation, positions, resolution, settlement, and intelligence endpoints across packages in backend/internal, including agent-readable market APIs under backend/internal/agent. That agent layer executes trades through Circle wallets via backend/internal/agent/circle_api_executor.go and companions for balance checks, market creation, buys, and lifecycle readback. The Next.js frontend in apps/web adds wallet connection and a browser-wallet USDC approval and openPosition flow. Foundry contracts in contracts/src/SignalArcMarket.sol and contracts/src/SignalArcMarketFactory.sol implement binary USDC-settled markets, and docker-compose.yml stands up the backend with PostgreSQL for local development.